136 results about "Laser energy density" patented technology

The invention relates to the technical field of laser material processing, and discloses a laser annealing temperature control method and device.The method comprises the steps that the specific heat capacity, the heat conductivity coefficient, the heat diffusivity, the heat radiation rate, the heat reflectivity and the heat loss coefficient are obtained, and a material thermal characteristic model is established; performing grid division according to the material thermal characteristic model to obtain a laser energy density parameter; extracting a thermal strain coefficient according to the laser energy density parameter, and establishing a temperature-thermal strain mapping relation prediction model; dynamically adjusting a laser power proportion and a pulse width time sequence according to the temperature-thermal strain mapping relation prediction model to obtain temperature field distribution data; according to the temperature field distribution data, carrying out shortest path analysis to obtain a temperature regulation and control decision; and according to the temperature regulation and control decision, inputting a preset control regulation model, and combining reinforcement learning iteration optimization parameters to obtain a temperature control scheme. According to the method, large-range temperature crossing and fine adjustment in an extremely short time can be realized.

The invention provides an automobile brake caliper manufacturing method based on a selective laser melting additive manufacturing technology, which comprises the following steps: carrying out structural region division on a three-dimensional digital model, and formulating an SLM process parameter strategy of a structural region, the SLM process parameter strategy comprising adjustment of laser power, scanning speed, scanning spacing and powder layer thickness; according to a three-dimensional digital model of the brake calipers and an SLM process parameter strategy, additive powder is laid in a powder bed of SLM equipment, the surface of the powder bed is scanned layer by layer through high-power-density laser beams, powder particles are selectively melted, laser energy density input is controlled, thermophysical characteristics of powder materials are matched, microstructure evolution is controlled, and the brake calipers are manufactured. And after one layer is melted and solidified, the powder bed descends by the height of one layer thickness, a new powder layer is spread out, the process is circulated till additive manufacturing of the brake calipers is completed, and the effects of being light in weight, high in structural strength and good in heat dissipation effect are achieved.

The invention relates to a Raman nondestructive testing system for cultural heritage based on a cooling device. Comprising a vacuum chamber, and the vacuum chamber is used for placing a sample and receiving Raman scattering signals generated by the light inlet module penetrating through the vacuum chamber, irradiating the surface of the cultural relic sample and exciting the sample; the cooling device module is connected with the vacuum chamber and is used for efficiently cooling the vacuum chamber and preventing the cultural relic sample from being damaged by a laser heat effect; the control and data processing module is used for monitoring and adjusting the laser power, the chamber pressure and the temperature of the sample table in real time, analyzing the collected Raman spectrum data and outputting a detection result; the laser energy density at the sample can be effectively reduced, and the cultural relic sample is prevented from being damaged due to strong light focusing irradiation; meanwhile, efficient collection of Raman signals in a large light spot range is achieved through the beam expander and the signal collection module, and the problem that the signal strength is weakened is solved.

The invention discloses a method for preparing an aluminum alloy capillary structure based on a selective laser melting technology, which comprises the following steps of: comprehensively regulating and controlling technological parameters of selective laser melting according to laser energy density by utilizing the forming principle of'incomplete melting pores' and'keyhole pores' in a selective laser melting forming process; and the porosity-adjustable aluminum alloy capillary structure is prepared. The method mainly comprises the following steps that firstly, aluminum alloy spherical powder with the particle size range suitable for the selective laser melting process is selected; secondly, a laser energy density reference value is selected according to the optimal technological parameters of selective laser melting forming of the aluminum alloy solid structure; then, according to the laser energy density, the laser power, the scanning rate, the scanning interval and other technological parameters are comprehensively regulated and controlled, the powder laying layer thickness is set, and the aluminum alloy capillary structure is prepared; and finally, the porosity of the capillary structure is measured, the correlation between the technological parameters and the porosity is established, a technological window is determined, and the aluminum alloy capillary structure with the adjustable porosity is prepared.

The invention relates to the technical field of road and bridge laser scanning monitoring, in particular to a road and bridge risk monitoring laser scanning device which comprises a main barrel, a supporting barrel, wheels, a handle, a tri-color lamp, a camera assembly, an extension assembly, an adjusting assembly and a rotating assembly, the main barrel is arranged on the upper surface of a base, and the supporting barrel is arranged on the lower surface of the main barrel; the wheels are arranged on the supporting barrel, the handle is arranged on the supporting barrel, the three-color lamp is arranged on the upper surface of the main barrel, an operator turns on a third driving motor in the adjusting assembly, the third driving motor rotates to drive a first rotating ring to rotate, the first rotating ring rotates to drive a laser scanner to move, and a top plate moves to drive a magnifying lens to move. Under extreme weather conditions, laser beams emitted by the laser scanner can be more focused at the focus point by adjusting the angle of the magnifying lens, and the energy density and penetrating power of the laser are improved.

The invention discloses a laser medical equipment control method and device, equipment and a storage medium, and belongs to the field of laser medical equipment. Comprises: an information acquisition module for acquiring an image of a pigmented skin disease of a patient and a result of a skin pigment analyzer; the auxiliary diagnosis module is used for obtaining the type of the pigmented skin disease of the patient through image classification; the laser control module obtains a proper laser spot size, a proper laser energy density and a proper laser pulse width through a machine learning method; the laser positioning module is used for positioning the position of the pigmented skin disease of the patient through target detection; the skin feedback module is used for detecting the skin of the laser treatment part in real time through a camera; the laser treatment module positions the affected part according to the laser positioning module and treats the pigmented skin disease according to the parameters set by the laser control module. According to the invention, the accuracy and safety of laser treatment are improved by adopting a machine learning method, and the operation difficulty of laser treatment is reduced.

Systems and methods for simulation of laser fluence simulate a laser treatment process to be performed on a part by a laser processing system and determine simulated fluence values at points on a surface of the part to be processed. The simulated fluence value is determined at each point on the surface of the part to be processed by virtually measuring a ray distance to each point and ray angle at each point during a simulation of the laser treatment process. The ray distances and ray angles are virtually measured based on a ray origin associated with an optics component used to deliver the laser to the surface. The optics component may include a scanning optics component that scans the laser beam on the surface or a projection optics component that projects the laser beam on the surface. The simulated fluence values determined by the simulation may be used to optimize the actual laser treatment process.

The invention relates to the technical field of laser cladding, and discloses a mold repairing method for adjusting the diameter of a laser beam. The method comprises the following steps: moving a laser cladding head according to a preset scanning path, and cladding a repairing material on a to-be-repaired surface of a mold so as to accumulate repairing layers layer by layer; wherein each repairing layer is of a space interlocking structure formed by a plurality of heterogeneous units which are periodically arranged; each heterogeneous unit is divided into a hard area and a soft area arranged on the periphery of the hard area; the laser cladding head is located in the same preset laser energy density interval when the hard area and the soft area are formed, and the diameter of a laser beam when the hard area is formed is smaller than that of a laser beam when the soft area is formed. According to the method, the combination of strength and ductility can be realized when the special stress part of the mold is repaired. The interaction between the cladding layers is enhanced through the interlocking structure, and the overall strength of the repairing coating is improved.

The present invention provides a method for manufacturing an automobile brake caliper based on a selective laser melting additive manufacturing technology. The method divides a three-dimensional digital model into structural areas, formulates an SLM process parameter strategy for the structural areas, and the SLM process parameter strategy includes adjusting laser power, scanning speed, scanning spacing, and powder layer thickness. According to the three-dimensional digital model of the brake caliper and the SLM process parameter strategy, additive powder is laid in a powder bed of an SLM device, a high-power density laser beam is used to scan the surface of the powder bed layer by layer, powder particles are selectively melted, laser energy density input is controlled, the thermophysical properties of the powder material are matched, microstructure evolution is controlled, and a gradient distribution of mechanical properties and thermal conductivity is obtained. After a layer is melted and solidified, the powder bed is lowered by a layer thickness, a new powder layer is spread, and the above process is repeated until the additive manufacturing of the brake caliper is completed. The method has the effects of lightweight, high structural strength, and good heat dissipation.

The invention discloses a 3D printing data detection method, which relates to the technical field of 3D printing detection, and comprises the following steps: S1, slicing and layering a to-be-printed three-dimensional model to obtain a plurality of two-dimensional section graphs; s2, carrying out laser scanning printing on the plurality of two-dimensional section graphs, generating an energy modulation item and a molten pool dynamic modulation item, and obtaining a metal printing risk quantized value of each two-dimensional section graph; and S3, determining a printing fault detection result according to the metal printing risk quantized value of each two-dimensional section graph. The laser energy density change rate, the powder layer thickness, the laser effective area, the molten pool solidification time and other key process parameters are comprehensively considered, the influence of energy input stability on the incomplete fusion risk is described through the energy modulation item, the effect of the over-fusion risk is reflected through the molten pool dynamic modulation item, the core influence factors of the printing quality are comprehensively covered, and the printing quality is improved. And a more reliable basis is provided for fault pre-judgment.

The invention provides a transparent restraint layer suitable for laser shock and a laser shock forming method and device of a metal plate, belongs to the technical field of metal plate laser processing, and aims to solve the technical problem of failure of the restraint layer in a low-temperature environment. The forming method comprises the steps that an absorption layer and a transparent restraint layer are sequentially laid on the surface of a to-be-impacted workpiece, and the transparent restraint layer sequentially comprises a polyurea-polyurethane elastomer layer, a nanofluid layer and a hydrogel layer in the direction close to the to-be-impacted workpiece to the direction away from the to-be-impacted workpiece; a single-laser-head or multi-laser-head array is adopted to implement pulse impact, and a temperature-stress-displacement multi-physical-field closed loop is constructed through displacement sensing, temperature sensing and ultrasonic stress sensing; and the industrial controller operates a model prediction control algorithm to perform linkage optimization on the laser energy density E, the scanning speed v and the hydrogel layer volume flow q. Compared with an existing double-layer constraint and double-feedback scheme, the method has remarkable technical progress in the aspects of low-temperature stability, array consistency and forming consistency.

The invention relates to the technical field of laser, in particular to a solid-gas mixed laser device, a solid-gas mixed laser output method and exposure equipment, and the solid-gas mixed laser device comprises a laser output module which outputs seed laser; the focusing assembly receives the seed laser and focuses the seed laser; the laser amplification module receives the laser focused by the focusing assembly and carries out energy amplification on the focused laser. According to the technical scheme, due to the fact that the energy density of the seed laser is low, the amplification function of a common laser amplification module can be achieved only when the energy density of the seed laser needs to be larger than a certain energy density threshold value or above; the energy density of the seed laser pre-entering the laser amplification module is increased through the focusing effect of the focusing assembly, the energy density threshold value of the laser amplification module can be achieved more easily, the requirement of the laser amplification module for the laser amplification condition is met, and the amplification effect of the laser amplification module is reliably achieved.

The invention relates to a laser modification method of transparent ceramic and the transparent ceramic obtained by the method, and the method combines laser pretreatment (LPP) and laser shock peening (LSP) to improve the laser damage resistance (LIDT) and mechanical stability of the transparent ceramic. The technical scheme comprises step-by-step surface and deep layer laser treatment, LPP is executed preferentially to eliminate surface microdefects and improve optical transmittance and damage threshold, and then the mechanical damage resistance of the interior of the material is enhanced through the LSP technology under the condition that the laser energy density is kept lower than the safety threshold. Through strict LIDT and mechanical property tests, technological parameters are fed back and adjusted, and the performance of the transparent ceramic is comprehensively improved. The process is suitable for high-performance optical elements and laser systems requiring high optical transparency and excellent mechanical properties. The innovation not only obviously prolongs the service life of the material, but also reduces the maintenance cost, and has wide application prospects.

The present invention provides a method for welding ceramic-transparent materials by high repetition rate ultrafast laser, comprising the following steps: S1, stacking the transparent material to be welded on top of the ceramic material; S2, the laser generator outputs a high repetition rate ultrafast laser, and the optical path is adjusted so that the high repetition rate ultrafast laser is focused on the ceramic material to induce plasma; S3, the laser energy density of the high repetition rate ultrafast laser is controlled to be a preset value, and the plasma generated by the ceramic material is used to shield and absorb the high repetition rate ultrafast laser to form a continuous high-temperature plasma; S4, the ceramic material is heated and melted by the high-temperature plasma, and the transparent material is melted by reverse heating through heat conduction, thereby realizing the welding of the ceramic material and the transparent material. The invention controls the appropriate ultrafast laser energy density under the action of the high repetition rate ultrafast laser, so that the surface of the ceramic material is melted rather than ablated, thereby realizing the ultrafast laser welding of ceramic-transparent materials, with small thermal effect and welding strength of more than 70MPa.

The application discloses a glass substrate hole modification method and an integrated waveguide manufacturing method, and comprises the following steps: focusing a laser focus on one side of a glass substrate close to the bottom surface thereof; controlling the laser focus to perform annular scanning along the outer contour of a preset hole to form a closed modification ring; controlling the laser focus to perform point-by-point scanning with a preset dot array interval in the internal area surrounded by the modification ring to form an array distributed modification dot array; and making the laser energy density of the annular cutting area of the modification ring lower than the laser energy density of the filling area of the modification dot array. The application can assist in high-precision preparation of a through hole and a blind hole with a vertical sidewall and a flat bottom on a glass substrate, thereby effectively improving the performance of a millimeter wave slow wave passive device and reducing the cost.

The invention discloses a 3D printing manufacturing method of metal molybdenum and application of the 3D printing manufacturing method of the metal molybdenum in manufacturing of biological medical equipment. The 3D printing manufacturing method of the metal molybdenum comprises the steps that spherical molybdenum powder is loaded into 3D printing equipment for 3D printing manufacturing forming, the scanning power of 3D printing is 380-420 W, the scanning speed is 500-800 mm / s, the scanning layer thickness is 20-40 microns, the scanning interval is 70-100 microns, and the laser energy density is 118-280 J / mm < 3 >. The spherical molybdenum powder is used as the raw material, and metal molybdenum with high density, tensile strength sigma b, yield strength sigma 0.2 and elasticity modulus can be prepared by adopting a proper 3D printing forming process.

This invention discloses a method for preparing epitaxial stress-controlled polarized metals, belonging to the field of functional oxide thin film preparation. The method includes: performing a special high-temperature annealing pretreatment on a YAlO3(111) substrate; calibrating the pulsed laser deposition rate and using a moving mask technique to prepare a wedge-shaped thin film with continuously varying thickness; and precisely controlling key process parameter windows such as growth temperature, laser energy density, oxygen partial pressure, and the distance between the target and the substrate. This invention obtains an ideal nucleation template by optimizing the substrate pretreatment process, achieves linear modulation of the thickness gradient by precisely controlling the matching of the mask moving speed and deposition rate, and obtains a high-quality polarized metal thin film with a room temperature resistivity as low as 173 μΩ·cm and stability across the entire temperature range by systematically optimizing key process parameters. This method has the advantages of high repeatability, high control precision, and wide applicability, and can be extended to the preparation of other perovskite oxide thin films, showing broad application prospects in the field of polarized electronic devices.

The invention belongs to the technical field of surface processing, and specifically relates to a polishing method for laser-added high-speed steel with a surface hardness fluctuation of ≤5HRC. The surface of the laser-added high-speed steel is laser polished and plasma polished successively, the roughness Ra of the laser cladding coating is ≤100μm, and the hardness is 55-65HRC; the polishing temperature during laser polishing is 350-400℃; the laser polishing adopts a pulsed laser, the pulse duty ratio is ≤40%, the pulse frequency is ≤30kHz, the wavelength is 3-6μm, the laser energy density distribution is uniformly distributed, the laser spot is a rectangular spot or a line spot, and when the laser spot is a rectangular spot, the spot size is 1-1.5mm×3-5mm; during the plasma polishing, the plasma spot is a rectangular spot with a size of 0.5-1mm×2-4mm, the surface roughness of the laser-added M2 high-speed steel is significantly reduced, and the hardness fluctuation is reduced.

The invention provides an azo-containing polymer as well as a preparation method and application thereof. The azo-containing polymer is prepared from the following raw materials: aryl azo primary amine, bifunctional epoxy resin, a monofunctional epoxy compound and an organic solvent. The azo-containing polymer provided by the invention has obvious ultraviolet sensitivity and wide ultraviolet absorptivity, can effectively generate photochemical decomposition under ultraviolet laser with low laser energy density, generates small molecular fragments, realizes clean ablation, does not pollute a system, is convenient for cleaning and recycling of a matrix, and has a wide application prospect. Good strong acid and strong alkali resistance is achieved; meanwhile, the synthetic process of the azo-containing polymer is safe, the stability is very good, and the azo-containing polymer has a long-acting shelf life.

The invention discloses a method for strengthening and improving the comprehensive mechanical property of a laser additive manufacturing nickel-based superalloy through in-situ synergistic reaction of Si and N elements. The method comprises the following steps that a composite powder system is prepared, wherein a base body of the composite powder system is the nickel-based superalloy, and a strengthening phase is Si3N4; and laser powder bed fusion forming is conducted, specifically, the prepared composite powder system is subjected to laser powder bed fusion forming, and the laser energy density is 62-93 J / mm < 3 >. According to the invention, Si3N4 is utilized to influence a laser forming temperature field by improving the laser absorptivity, and the structure of the nickel-based superalloy is refined through in-situ synergistic reaction of Si and N elements, so that the strength, ductility, hardness and modulus of the nickel-based superalloy are improved, the friction coefficient is reduced, and the comprehensive mechanical property of the nickel-based superalloy is improved.

The present disclosure relates to reducing reflection of transparent solids using laser, coatings and devices employing transparent solids. Methods and apparatus for reducing reflections of a transparent solid in a spectrum using a laser, coatings and apparatuses using a transparent solid are disclosed. The laser is used to shape the surface of the transparent solid material by raising the temperature of the material near the melting temperature, thereby creating a desired target nanostructured two-dimensional anti-reflective pattern array on the surface. A laser energy density value, wavelength, repetition rate, pulse duration, and number of consecutive laser pulses per focal spot are selected and a desired focal spot distribution on the surface of the transparent solid material is determined. Transparent solid materials are relatively translated to generate a desired array of nanostructured two-dimensional patterns.

Systems and methods for simulating laser energy density simulate a laser treatment process to be performed on a part by a laser processing system and determine simulated energy density values ​​at points on the surface of the part to be treated. The simulated energy density value is determined at each point on the surface of the part to be treated by virtually measuring the light distance to each point and the light angle at each point during the simulation of the laser treatment process. The light distance and light angle are virtually measured based on the origin of the light rays associated with an optical assembly used to deliver the laser to the surface. The optical assembly may include a scanning optics assembly that scans the laser beam on the surface or a projection optics assembly that projects the laser beam onto the surface. The simulated energy density value determined by the simulation can be used to optimize the actual laser treatment process.

The invention discloses a nanosecond laser precision machining method for a SiCf / SiC composite material, and belongs to the field of laser machining and advanced composite material manufacturing. The method comprises the following steps: carrying out linear ablation or surface ablation on a pretreated SiCf / SiC composite material by adopting nanosecond pulse laser with the wavelength of 355 nm; the laser energy density, the scanning speed, the scanning times, the line overlapping ratio and the scanning path are optimized through the system, and high-precision and low-damage machining is achieved. The core optimization parameters are as follows: the laser energy density is 5.33 J / cm < 2 >, the scanning speed is 200mm / s, the line overlapping rate is 66.58%, and a one-way scanning mode is adopted. Through the combination of experiments and simulation, the mechanism (melting, evaporation, decomposition, and material removal by liquid drop splashing and gas volatilization) of nanosecond laser ablation of SiCf / SiC is disclosed, the heat affected zone, the oxidation phenomenon and the recondensate defect are effectively controlled, the quality and the contour precision of the machined surface are remarkably improved, and the machining precision is improved. The method is suitable for micromachining of key components such as aerospace engine hot end components and medical high-end equipment.

The invention discloses a gradient heterostructure zinc alloy implant and a laser additive preparation method thereof, and the method comprises the following steps: firstly, constructing a three-dimensional model of a gradient heterostructure, and introducing the three-dimensional model into a selective laser melting system after layered slicing treatment; a slice layer is used as a regulation and control unit, and dynamic parameter switching is carried out in an optimized laser energy density range: high laser energy density promotes growth of coarse grains by improving thermodynamic conditions of a molten pool, and low laser energy density realizes regulation and control of fine grains by rapid cooling; and finally, a gradient heterostructure with periodical alternation of coarse and fine crystal layers is formed. Results show that the gradient heterostructure zinc alloy implant shows synergistic improvement of strength and ductility, and the strengthening mechanism of the gradient heterostructure zinc alloy implant mainly originates from comprehensive effects of stress caused by non-uniform deformation, interlayer dislocation and strain localization inhibition of a thick and thin grain alternating layer. In addition, the implant also shows an excellent gradient antibacterial effect. A feasible strategy is provided for design and development of the high-performance zinc alloy implant.

The invention discloses a SrTaO3 electrochromic film and a preparation method and application thereof, and belongs to the technical field of electrochromic film devices and application. The preparation method of the SrTaO3 electrochromic film comprises the following steps: taking Sr2Ta2O7 polycrystalline ceramic as a target material, and preparing the SrTaO3 electrochromic film by adopting a pulsed laser deposition method under the condition that the laser energy density is 0.7-0.9 J / cm < 2 >. The warm-tone electrochromic material is prepared according to the method disclosed by the invention. The SrTaO3 electrochromic film prepared by the method has a flat atomic scale surface and good crystallinity, can be subjected to cathode or anode electrolysis in a Na2CO3 solution so as to present different colors corresponding to different transmittance and resistivity, and has application potential of constructing an electrochromic device.

This invention relates to the field of laser technology, specifically to a solid-gas hybrid laser device, a solid-gas hybrid laser output method, and an exposure apparatus. The solid-gas hybrid laser device includes: a laser output module that outputs a seed laser; a focusing component that receives and focuses the seed laser; and a laser amplification module that receives the focused laser and amplifies its energy. This application employs the above technical solution. Because the energy density of the seed laser is relatively low, a typical laser amplification module requires the seed laser's energy density to exceed a certain energy density threshold to function effectively. This application utilizes the focusing effect of the focusing component to increase the energy density of the seed laser entering the laser amplification module, making it easier to reach the laser amplification module's energy density threshold. This adapts to the laser amplification module's requirements for amplification conditions and reliably achieves the amplification function of the laser amplification module.

The invention discloses a metal workpiece surface crack repairing method and device based on a continuous laser polishing technology, belongs to the technical field of metal repairing engineering, and realizes selective cladding and metallurgical bonding of a crack area and synchronous completion of crack filling and surface strengthening by accurately controlling laser energy density and heat input under the protection of inert gas. The core scheme comprises the following steps: 1) performing three-dimensional scanning positioning on cracks; 2) laser-powder synchronous coupling repair; and (3) gradient annealing is performed to control residual stress. Laser polishing parameters are determined according to the crack filling depth equation, the surface flatness is controlled in combination with a molten pool oscillation equation, and the stability of a molten pool formed by metal liquid after laser polishing of metal is evaluated and calculated. And after polishing, observing under an electron microscope, and monitoring whether the surface hardness after polishing reaches the standard or not through a hardness control model. And then, a thermal-mechanical coupling model is adopted to predict the magnitude of residual stress generated in the laser repairing process, and a theoretical basis is provided for gradient annealing process parameters.

The invention discloses a precise regulation and control method for the size of a micro-nano structure prepared on the surface of a semiconductor, and the method comprises the steps: combing the initial damage size distribution rule of a laser-induced semiconductor material with different incident laser energy, and combining with the analysis of the damage growth coefficient relation of each initial damage under the subsequent irradiation of different incident laser energy densities; the method comprises the following steps: summarizing damage growth thresholds of different-size initial damages of various semiconductors under irradiation of different laser parameters, and finally obtaining a corresponding semiconductor surface micro-nano structure processing scheme and a micro-nano structure size precise regulation effect according to the processing requirements of the semiconductor surface micro-nano structure preparation size. The machining precision and quality of the whole semiconductor surface are improved, preparation of semiconductor surface micro-nano structures with different size requirements is achieved, and application of related fields is expanded.

The present invention belongs to the field of additive manufacturing technology, and in particular, is a method for predicting the diameter of a strut in an additively manufactured lattice structure. The operating steps are as follows: S1. Selecting additive manufacturing process parameters to manufacture a lattice structure. This prediction method, by providing a method for rapidly predicting the diameter of a strut in an additively manufactured titanium alloy lattice structure, only requires statistically analyzing the diameters of the struts in the titanium alloy lattice structure manufactured under several different process parameters. This method can then, according to the method provided by the present invention, fit a relationship formula to achieve prediction of the diameter of the struts in the additively manufactured titanium alloy lattice structure under any process parameters. The proposed formula is only related to laser energy density and has the advantages of being simple in form and having fewer parameters. This formula can solve the problem of predicting the diameter of the struts in the lattice structure manufactured under different process parameters using the same material, especially for lattice structures manufactured using the same material.

The invention provides plasma laser composite deposition equipment and a deposition method thereof, and the deposition equipment comprises a laser, a lathe and a plasma emitter; the lathe is provided with a clamping assembly, and the clamping assembly is used for clamping a base rod to be deposited, so that the axis of the base rod and the axis of the clamping assembly are concentrically arranged; the laser is arranged right above the base rod and is used for emitting a laser beam to the base rod; the plasma emitter and the laser are arranged on one side of the laser at an included angle, and the plasma emitter is used for emitting SiO2 particles to the base rod; wherein SiO2 particles emitted by the plasma emitter are located in a focusing area of a laser beam emitted by the laser. The deposition equipment has the advantages of being narrow in laser heating area, small in energy needed by single-point heating, high in laser energy density, high in energy utilization rate, good in laser consistency and high in precision, and can be well suitable for efficient manufacturing of small-batch special optical fiber core rods.