Wire and method for reducing light reflection in aluminum alloy additive manufacturing

Abstract

The application belongs to the technical field of additive manufacturing, and particularly discloses a wire for reducing light reflection in additive manufacturing of aluminum alloy and a method. The wire comprises an aluminum alloy wire and a silicon coating arranged on the surface of the aluminum alloy wire and used for reducing light reflection of the aluminum alloy wire. The method comprises the following steps: pre-treating the surface of the aluminum alloy wire; and preparing the silicon coating on the surface of the aluminum alloy wire after the surface pre-treatment, the silicon coating being used for reducing light reflection of the aluminum alloy wire. According to the application, a layer of elemental silicon is plated on the surface of the aluminum alloy wire. The silicon has good light absorption performance and belongs to the component of the aluminum alloy, and no other impurities are introduced, so that the high reflection problem of the aluminum alloy can be improved, and the forming quality can be effectively improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of additive manufacturing, and more particularly relates to a wire material and method for reducing light reflection in aluminum alloy additive manufacturing. BACKGROUND

[0002] Aluminum alloy is a light metal material based on aluminum, adding magnesium, manganese, iron, silicon and zinc elements, with low density, high strength and excellent mechanical properties. It is widely used in aerospace, transportation, shipbuilding and weapons, and its low density and excellent performance make it the most commonly used structural material after steel. Aluminum alloy has strong thermal conductivity and low melting point, which can be quickly melted by high-energy laser beams in wire melting additive manufacturing. Compared with traditional casting process of aluminum alloy, it overcomes the problems of complicated process, time-consuming, low precision and improves the comprehensive performance of the material.

[0003] Firstly, the high laser reflectivity and poor thermal conductivity of aluminum alloy make it difficult to control heat input, resulting in a narrow process window and easy to cause residual stress and deformation problems. Secondly, the low density and poor flowability of aluminum alloy require high light-silk spacing and stable wire feeding, increasing the control difficulty. Thirdly, the oxide film formed during melting interferes with the absorption and melting process of laser, and the control of laser power is particularly critical. High power will cause excessive evaporation of volatile elements in aluminum alloy, while low power cannot effectively melt the wire and the substrate. Finally, during the deposition process, as the number of layers increases, the molten pool becomes longer and deeper, and the cooling time is prolonged, which is easy to cause defects such as collapse and uneven surface. These technical problems hinder the maturity and practical application of aluminum alloy laser wire additive manufacturing technology.

[0004] Current research mainly focuses on optimizing process, controlling defects and regulating microstructure. In addition, by changing the composition of the sample through multi-wire cooperation or adding heterogeneous material powder on the surface of the previous layer before forming, combined with heat wire, ultrasonic vibration and other external physical field assisted processes, the quality stability and yield of the final formed component are improved. However, most of the current wire additive manufacturing processes still use traditional welding wires, which have poor process adaptability and cannot effectively solve the problems of element loss, hot cracking, porosity, mechanical property anisotropy and rapid and complex thermal history during additive manufacturing. SUMMARY

[0005] In view of the above defects or improvement needs of the prior art, the present application provides a wire material and method for reducing light reflection in aluminum alloy additive manufacturing, which coats a layer of elemental silicon on the surface of the aluminum alloy wire. Silicon not only has good light absorption performance, but also belongs to the composition of aluminum alloy and does not introduce other impurities, which can improve the high reflection problem of aluminum alloy and effectively improve the forming quality.

[0006] To achieve the above object, according to one aspect of the present application, a wire for reducing light reflection in additive manufacturing of aluminum alloy is provided, comprising:

[0007] an aluminum alloy wire;

[0008] a silicon coating layer provided on the surface of the aluminum alloy wire for reducing light reflection of the aluminum alloy wire.

[0009] As a further preferred, the silicon coating layer is prepared by using elemental silicon.

[0010] As a further preferred, the silicon coating layer is deposited on the surface of the aluminum alloy wire by using atomic deposition method.

[0011] As a further preferred, the surface of the aluminum alloy wire is further provided with a rough layer for improving film adhesion.

[0012] According to another aspect of the present application, a preparation method of the wire for reducing light reflection in additive manufacturing of aluminum alloy is also provided, comprising the following steps:

[0013] Step one, pre-treating the surface of the aluminum alloy wire;

[0014] Step two, preparing a silicon coating layer on the surface of the aluminum alloy wire after surface pre-treatment for reducing light reflection of the aluminum alloy wire.

[0015] As a further preferred, step one comprises the following steps:

[0016] (11) cleaning the surface of the aluminum alloy wire;

[0017] (12) mechanically sanding or chemically etching the surface of the cleaned aluminum alloy wire to prepare a rough layer for improving film adhesion;

[0018] (13) placing the aluminum alloy wire after step processing into a vacuum environment, and in the vacuum environment, using a method of heating and evaporating silicon source material or using a method of high-energy particle bombardment of silicon source material to make silicon atoms deposit on the surface of the wire to form a thin film;

[0019] (14) heat treating or solidifying the thin film to prepare a silicon coating layer on the surface of the aluminum alloy wire for reducing light reflection of the aluminum alloy wire.

[0020] As a further preferred, in step two, the deposition temperature is 100-300℃, and the deposition pressure is 1-10mTorr.

[0021] As a further preferred, the step further comprises the following steps:

[0022] According to the composition of the aluminum alloy wire, the thickness of the silicon coating, the performance of the wire for reducing light reflection in aluminum alloy additive manufacturing is evaluated to determine the optimal thickness of the silicon coating.

[0023] As a further preferred, step (13) specifically includes the following steps:

[0024] (131) Take the composition of the aluminum alloy wire as a design variable, and define its physical properties and mechanical properties;

[0025] (132) Use Thermo-Calc to perform phase diagram calculation to determine the phase equilibrium state of the alloy, and apply a material mechanics model to predict the mechanical properties of the material;

[0026] (134) Based on the neural network model, taking the phase equilibrium state of the alloy and the corresponding mechanical properties as constraint conditions, a multi-objective optimization model of the silicon coating thickness and laser absorption rate is constructed;

[0027] (135) Output the optimal solution based on the multi-objective optimization model.

[0028] According to another aspect of the present application, there is also provided an additive manufacturing method using a wire for reducing light reflection in aluminum alloy additive manufacturing as described in any embodiment or combination of multiple embodiments above.

[0029] Overall, compared with the prior art, the above technical solutions conceived by the present application mainly have the following technical advantages:

[0030] 1. The present application significantly improves the laser absorption rate of the wire by coating a layer of silicon material on the surface of the aluminum alloy wire, making the molten pool more uniform, thereby improving the surface quality of the deposited parts and effectively reducing defects caused by uneven heat input.

[0031] 2. The present application coats a layer of elemental silicon on the surface of the aluminum alloy wire. Silicon not only has good light absorption performance, but also belongs to the composition of aluminum alloy, without introducing other impurities, which can improve the high reflection problem of aluminum alloy and effectively improve the forming quality.

[0032] 3. The present application introduces a nano-structured silicon coating, which significantly improves the energy absorption efficiency of the laser. This enhanced laser absorption capability directly leads to faster and more uniform melting of the aluminum alloy wire, thereby improving the thermal uniformity of the molten pool. This helps to reduce defects caused by uneven heat input, such as collapse, side flow and surface unevenness, thereby improving the surface quality and mechanical properties of the deposited parts. In addition, due to the effective utilization of laser energy, the laser power and scanning speed can be optimized to improve the efficiency of the manufacturing process.

[0033] 4.The present application can realize the synchronous optimization of aluminum alloy wire composition, silicon coating thickness and laser absorption rate, thereby improving the comprehensive performance of the material, reducing the production cost, and enhancing the market competitiveness of the product. By precisely controlling these parameters, the mechanical properties of the material and the laser processing efficiency can be improved, while reducing material waste and environmental impact, promoting industrial manufacturing towards a more efficient and environmentally friendly direction. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 is a structural schematic diagram of a wire for reducing light reflection in aluminum alloy additive manufacturing according to an embodiment of the present application. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical scheme and advantages of the present application clearer, the present application will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application. In addition, the technical features involved in each embodiment of the present application described below can be combined with each other as long as they do not conflict with each other.

[0036] Embodiment 1

[0037] As shown in Figure 1 , the present application provides a wire for reducing light reflection in aluminum alloy additive manufacturing, which comprises: an aluminum alloy wire 1; a silicon coating 3 provided on the surface of the aluminum alloy wire 1 for reducing light reflection of the aluminum alloy wire 1. The silicon coating 3 is prepared from elemental silicon. The silicon coating 3 is deposited on the surface of the aluminum alloy wire 1 by atomic deposition method. The aluminum alloy wire 1 surface is also provided with a rough layer 2 for improving the adhesion of the coating.

[0038] In this embodiment, silicon is a typical semiconductor material, and its energy band structure determines its electronic transition behavior when interacting with laser. When the energy of the laser matches the energy band gap of silicon, the electron can absorb the energy of the laser and jump from the valence band to the conduction band, thereby increasing the absorption of the laser. Defects (such as vacancies, interstitial atoms, dislocations, etc.) existing in the crystal structure of silicon will affect the distribution of its electronic state density. These defect states can become electron trapping centers under the action of laser, making electrons more easily interact with laser photons, thereby improving the absorption of laser. Starting from the aluminum alloy wire, a layer of elemental silicon is plated on the surface of the wire. Silicon not only has good light absorption performance, but also belongs to the composition of aluminum alloy and does not introduce other impurities, which can improve the high reflection problem of aluminum alloy and effectively improve the forming quality.

[0039] Embodiment 2

[0040] The present application provides a preparation method of a wire for reducing light reflection in aluminum alloy additive manufacturing, comprising the following steps:

[0041] Step one, pretreat the surface of the aluminum alloy wire 1. Specifically, step one includes the following steps:

[0042] (11) clean the surface of the aluminum alloy wire 1;

[0043] (12) mechanically sand or chemically etch the surface of the cleaned aluminum alloy wire 1 to prepare a rough layer 2 for improving film adhesion;

[0044] (13) place the aluminum alloy wire 1 treated in step (12) into a vacuum environment, and in the vacuum environment, use a method of heating and evaporating a silicon source material or using high-energy particle bombardment of the silicon source material to deposit silicon atoms onto the wire surface to form a thin film; in this step, according to the composition of the aluminum alloy wire 1 and the thickness of the silicon coating 3, the performance of the wire for reducing light reflection in aluminum alloy additive manufacturing is evaluated to determine the optimal thickness of the silicon coating 3.

[0045] (14) heat treat or cure the thin film to prepare a silicon coating 3 on the surface of the aluminum alloy wire 1 for reducing light reflection of the aluminum alloy wire 1.

[0046] Step two, prepare a silicon coating 3 on the surface of the aluminum alloy wire 1 after surface pretreatment for reducing light reflection of the aluminum alloy wire 1.

[0047] In the above embodiment, step (13) specifically includes the following steps:

[0048] (131) take the composition of the aluminum alloy wire 1 as a design variable and define its physical properties and mechanical properties;

[0049] (132) use Thermo-Calc to calculate the phase diagram and determine the phase equilibrium state of the alloy, and apply a material mechanics model to predict the mechanical properties of the material;

[0050] (134) based on the neural network model, taking the phase equilibrium state of the alloy and the corresponding mechanical properties as constraints, construct a multi-objective optimization model of the thickness of the silicon coating 3 and the laser absorption rate;

[0051] (135) output the optimal solution based on the multi-objective optimization model.

[0052] Specifically, in this embodiment, first, define the design variables and physical properties, take the composition of the aluminum alloy wire as the design variable, and define its physical properties and mechanical properties. The physical properties include density, melting point, thermal conductivity, electrical conductivity, etc. The mechanical properties include yield strength, tensile strength, elongation, etc.

[0053] Then, phase diagram calculation and phase equilibrium state determination.

[0054] Phase diagram calculation is performed using Thermo-Calc software to determine the phase equilibrium state of the alloy. Thermo-Calc software is based on the CALPHAD method, which predicts the phase equilibrium state through the calculation of Gibbs free energy (G): G = G_liquid + ∑ixiμi, where G is the Gibbs free energy of the system, xi is the mole fraction of component i, and μi is the chemical potential of component i.

[0055] Next, material mechanics model prediction.

[0056] The mechanical properties of the material are predicted using the material mechanics model. The elastic modulus (E) and Poisson's ratio (v) of the material can be determined experimentally or by consulting a material database.

[0057] Next, establish a mapping function between laser absorption rate and silicon coating thickness

[0058] Construct a mapping function f to relate the silicon coating thickness t to the laser absorption rate A.

[0059] The laser absorption rate A can be calculated by the following formula: A = 1 - R - T.

[0060] The reflectivity R can be calculated by the Fresnel equation:

[0061]

[0062] The transmittance T can be approximately calculated by the following formula: T = exp(-αtλ).

[0063] Where α is the extinction coefficient of silicon material.

[0064] Next, neural network model training

[0065] The neural network model is trained using experimental data to learn the relationship between silicon coating thickness and laser absorption rate. Training data set: contains experimental data of different silicon coating thickness and corresponding laser absorption rate.

[0066] The neural network model can be trained by the following loss function:

[0067]

[0068] Where N is the number of samples in the data set, ti is the silicon coating thickness of the i-th sample, and Ai is the corresponding laser absorption rate.

[0069] Finally, multi-objective optimization model construction.

[0070] The mapping function f is used as part of the optimization model to find the optimal silicon coating thickness topt.

[0071] The multi-objective optimization problem can be represented as:

[0072] min t Loss(f(t; θ), A target )

[0073] where Loss is the loss function that measures the difference between the model-predicted laser absorption and the target value.

[0074] The trained neural network model is used to solve the multi-objective optimization problem to find the optimal silicon coating thickness.

[0075] In this embodiment, the optimization algorithm uses, for example, genetic algorithms, particle swarm optimization (PSO), etc. The optimization algorithm iteratively searches for the optimal solution: topt = Optimizer(Loss, θ), where Optimizer is the optimization algorithm and θ is the parameter of the neural network model.

[0076] This embodiment ensures that the silicon coating thickness of the aluminum alloy wire can maximize the laser absorption rate and meet other performance requirements from defining design variables to experimental verification.

[0077] Embodiment 3

[0078] In this embodiment, based on Embodiment 1, a silicon nanowire structure layer is further provided on the surface of the silicon coating 3. This silicon nanowire structure layer is used to increase the surface area of the silicon coating, thereby increasing the area of contact between the laser and the material and improving the absorption rate of laser energy. In addition, the silicon nanowire structure can act as a channel for heat conduction, facilitating the rapid transfer of heat from the laser irradiation area to the aluminum alloy substrate, thereby achieving more uniform melting and better molten pool control. This improved heat conduction performance helps to reduce thermal stress and deformation, improving the bonding strength of the deposited layer. Furthermore, the silicon nanowire structure can reduce the reflection and scattering of the laser beam, as it can scatter incident light in multiple directions or reduce reflection by absorbing and converting light energy. This effect is particularly important for improving the efficiency and quality of laser processing.

[0079] Based on the above embodiment or a combination of multiple embodiments, in this embodiment, EBL or EUV lithography technology is used to fabricate silicon nanowire structures on a quartz or silicon template. The imprint temperature is room temperature to 100°C to ensure the flowability and solidification characteristics of the polymer. The imprint pressure is 0.1-1 MPa to ensure that the polymer completely fills the nanometer structure of the template. The imprint time is 10-60 seconds to ensure that the polymer is completely solidified. A mild release agent or reduced temperature is used to achieve separation between the template and the polymer, and then the solidified polymer nanometer structure is transferred to the surface of the silicon coating to form a silicon nanometer structure layer.

[0080] Example 4

[0081] The present embodiment relates to a kind of aluminum alloy laser additive wire and the additive manufacturing method using the wire, including the following steps:

[0082] First, silicon film preparation. Remove the dirt, dust and other contaminants on the surface of the wire, use ultrasonic cleaning, pickling or other cleaning methods. Mechanical sanding or chemical etching is carried out on the substrate to increase the surface roughness to improve the adhesion of the coating. Select suitable silicon source material, such as silicon target. Place the silicon target in a vacuum chamber, evaporate by heating or use high-energy particle bombardment target, deposit silicon atoms on the surface of the wire to form a thin film. Heat treatment or curing is carried out on the coating to enhance the performance and adhesion of the film layer. The specific temperature and time are adjusted according to the coating material and method.

[0083] Second, wire inspection and preparation. Check the surface quality and diameter of the wire to ensure that there are no obvious defects such as cracks, rust, etc. Check the film thickness, uniformity and other performance indicators. For applications requiring higher surface finish, polishing and polishing treatment are carried out. Confirm that the guide device (guide wheel) through which the wire passes is working properly to avoid wire deviation or winding phenomenon. Set and calibrate the wire feed speed to match the requirements of the additive equipment. Connect the wire to the nozzle or melting unit of the equipment to ensure firm and reliable connection.

[0084] Third, additive manufacturing process. Before printing, three-dimensional modeling and slicing are carried out on the component, the path of the laser is planned, and the laser power, lift amount, scanning speed and wire feed speed are set. Fix the substrate on the workbench filled with inert argon gas to prevent oxidation.

[0085] Start the device for laser additive manufacturing. According to the set path and parameters, continuously deposit materials to manufacture large components that do not collapse and do not require subsequent subtractive manufacturing to directly meet the engineering application requirements.

[0086] Repeat the above steps to continuously deposit and manufacture large laser additive manufacturing components that do not collapse and do not require subsequent subtractive manufacturing to directly meet the engineering application requirements.

[0087] Example 5

[0088] The present embodiment relates to a kind of aluminum alloy laser additive wire and the additive manufacturing method using the wire, taking laser additive manufacturing single wall as an example, including the following steps:

[0089] First Step, Material Composition Design and Performance Prediction. Utilize computational materials science and simulation tools to predict the performance of different aluminum alloy and plated silicon composition combinations. Apply phase diagram analysis, material mechanics models, and chemical reaction simulations to optimize the aluminum alloy composition and the thickness of the silicon plating. Prepare samples according to design requirements, conduct mechanical performance tests (such as tensile, hardness, and impact tests), and perform composition analysis to evaluate the performance of the aluminum alloy and plated silicon, determining the optimal composition and film thickness.

[0090] Second Step, Wire Preparation. Pour molten metal into a mold to create a preliminary wire blank. Extrude the molten metal through an extruder to form the desired wire diameter. Allow the extruded or cast wire to cool appropriately to solidify its shape.

[0091] Perform initial stretching using a coarse drawing machine to reduce the wire diameter and improve material uniformity. Conduct fine drawing to achieve the desired wire diameter and surface finish.

[0092] Third Step, Silicon Plating Film Preparation. Remove oil, dust, and other contaminants from the wire surface using ultrasonic cleaning, acid washing, or other cleaning methods. Mechanically sand or chemically etch the substrate to increase surface roughness and enhance film adhesion. Select an appropriate silicon source material, such as a silicon target. Place the silicon target in a vacuum chamber and deposit silicon atoms onto the wire surface by heating evaporation or high-energy particle bombardment of the target, forming a thin film. Perform heat treatment or solidification of the coating to enhance film performance and adhesion, with specific temperature and time adjusted according to the plating material and method.

[0093] Fourth Step, Wire Inspection and Preparation. Inspect the wire's surface quality and diameter consistency, ensuring no significant defects such as cracks or rust, and that it meets size and material specifications. Confirm that the wire guide (idler) is functioning correctly to prevent wire deviation or entanglement. Set and calibrate the wire feed speed to match the additive manufacturing equipment requirements. Connect the wire to the device's nozzle or melting unit, ensuring a secure and reliable connection.

[0094] Fifth Step, Additive Manufacturing Process. Model the component in three dimensions and slice it before printing, plan the laser's path, and set the laser power, lift height, scan speed, and wire feed speed. Secure the substrate on a workbench filled with inert argon gas to prevent oxidation.

[0095] Start the device for laser additive manufacturing, following the set path and parameters to continuously deposit materials and create large-scale components that meet engineering application requirements without subsequent subtractive manufacturing.

[0096] Repeat the above steps to continuously deposit and manufacture large-scale laser additive manufacturing components that meet engineering application requirements without subsequent subtractive manufacturing.

[0097] Embodiment 6

[0098] The present embodiment relates to a kind of aluminum alloy laser additive wire and the additive manufacturing method using the wire, comprising the following steps:

[0099] a. Silicon coating preparation, including removing the dirt, dust and other contaminants on the surface of the wire, mechanically sanding or chemically etching the substrate, selecting silicon source material and placing it in a vacuum chamber to deposit silicon atoms on the surface of the wire by evaporation or high-energy particle bombardment to form a thin film, and heat treating or curing the coating;

[0100] b. Wire inspection and preparation, including checking the surface quality and diameter of the wire to ensure that there are no obvious defects, confirming that the guide device passed by the wire is working properly, setting and calibrating the wire feed speed, and connecting the wire to the nozzle or melting unit of the equipment;

[0101] c. Additive manufacturing process, including three-dimensional modeling and slicing of the component, planning the laser path, setting the laser power, lift amount, scan speed and wire feed speed, fixing the substrate on the workbench filled with inert argon, and starting the equipment for laser additive manufacturing.

[0102] In the first step, mechanically sanding or chemically etching the substrate to improve the adhesion of the coating.

[0103] In the first step, after silicon atoms are deposited on the surface of the wire to form a thin film, the coating is heat treated or cured to enhance the performance and adhesion of the film layer.

[0104] In the second step, by checking the surface quality and diameter of the wire to ensure that there are no obvious defects.

[0105] In the third step, during the laser additive manufacturing process, the substrate is fixed on the workbench filled with inert argon to prevent oxidation.

[0106] In the third step, during the laser additive manufacturing process, the laser power, lift amount, scan speed and wire feed speed are set to continuously deposit materials to manufacture large laser additive manufacturing components that do not collapse and do not require subsequent subtractive manufacturing to directly meet the engineering application requirements.

[0107] In the third step, the above steps are repeated to continuously deposit and manufacture large laser additive manufacturing components that do not collapse and do not require subsequent subtractive manufacturing to directly meet the engineering application requirements.

[0108] As those skilled in the art will readily appreciate from this disclosure, embodiments described above are merely preferred embodiments of the present application, and are not intended to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A wire for reducing light reflection in additive manufacturing of aluminum alloys, characterized in that, The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing.

2. The wire for reducing light reflection in additive manufacturing of aluminum alloys according to claim 1, characterized by, The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing.

3. A method of producing a wire for reducing light reflection in additive manufacturing of an aluminum alloy, characterized by, The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing.

4. The method of claim 3, wherein the method further comprises, The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing.

5. A method of additive manufacturing, characterized by, The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for reducing light reflection in aluminum alloy additive manufacturing. The application relates to a wire material for

Images