Metal / nonmetal heterogeneous component manufacturing equipment and method

Abstract

According to the high-performance manufacturing equipment and method for the metal / non-metal heterogeneous component, a microstructure is prefabricated on the surface to be treated of the non-metal component, the physical and chemical state of the microstructure is designed, then the surface microstructure is compactly filled with coating metal through a chemical plating method, and a metal / non-metal initial interface is formed. And then, a high-precision stirring friction deposition process is adopted, target metal is subjected to thermal plasticizing under the shearing and extruding effects, and the target metal is deposited on the chemical plating layer of the non-metal workpiece. Under the thermal influence caused by the stirring friction effect in the deposition process, solid-phase welding of plated metal and deposited metal is achieved, the thermal effect generated in the deposition process can be transmitted to an initial interface of metal / nonmetal, formation of metal / nonmetal chemical bonding is promoted, meanwhile, the thermal effect acts on a prefabricated microstructure on the surface of the nonmetal, and the metal / nonmetal surface is formed. And the metal / non-metal interface is induced to form mortise and tenon interlocking, high-strength combination of the metal / non-metal interface is promoted, and finally high-performance manufacturing of the metal / non-metal heterogeneous component is achieved.

Description

Technical Field

[0001] The present invention relates to the field of metal / non-metal heterogeneous component manufacturing, specifically, to metal / non-metal heterogeneous component manufacturing equipment and method, and more specifically, to metal / non-metal heterogeneous component manufacturing equipment and method based on solid phase deposition. Background Art

[0002] Metal / non-metal heterogeneous components refer to a composite material structure that is formed by connecting one or more layers of metal to a non-metal substrate with good mechanical properties, heat resistance or other specific functions through physical or chemical methods, thereby achieving high conductivity, efficient heat dissipation, lightweight, electromagnetic shielding, flexible and processable functions. These advantages have made metal / non-metal heterogeneous components widely used in aviation, aerospace, automobiles, electronics, communications and other fields, and are widely used in copper-clad substrates, smart skins, aircraft antennas, heat sinks, radiators, thermal interface materials, electromagnetic shielding covers, flexible electronic products and other scenarios.

[0003] Metal / non-metal heterogeneous components are often subjected to complex electrical, thermal and mechanical loads during service, which makes them very easy to peel off and fail at the interface. Therefore, high requirements are placed on the manufacturing of metal / non-metal heterogeneous components: that is, while meeting the various functional characteristics of metal / non-metal heterogeneous components, the bonding strength of the metal / non-metal interface should be improved as much as possible to provide good temperature resistance and thermal shock resistance, and improve the performance, reliability and life of various equipment.

[0004] However, due to the large differences in the properties of metals and non-metals and weak interface bonding, metal / non-metal heterogeneous components face the problems of difficult forming and easy failure. Traditional manufacturing methods, such as gluing, mechanical connection, chemical plating, etc., are difficult to apply in high-temperature environments, are not conducive to lightweight components, or have difficulty in achieving high-strength bonding of heterogeneous interfaces. Although the emerging extrusion or inkjet 3D printing methods can achieve lightweight conformal manufacturing, they still cannot meet the key requirement of high interface bonding strength. Summary of the invention

[0005] In view of the defects in the prior art, the purpose of the present invention is to provide a metal / non-metal heterogeneous component manufacturing equipment and method that meets the multiple functional characteristics of the metal / non-metal heterogeneous component while improving its interface bonding strength.

[0006] According to the present invention, a metal / non-metal heterogeneous component manufacturing equipment includes: a deposition tool, a deposition platform and a feeding mechanism;

[0007] The deposition tool comprises: a feeding screw, a storage funnel and a sleeve;

[0008] The deposition platform comprises: a deposition platform rotating shaft, a deposition platform tooling and a lower substrate of the deposition platform; the deposition platform tooling is installed on the lower substrate of the deposition platform; the feeding screw is installed on the deposition platform rotating shaft, and the feeding screw rotates with the rotation of the deposition platform rotating shaft; the sleeve is coaxial with the feeding screw and is installed at the static clamping position of the deposition platform;

[0009] The material storage funnel is installed on the top or side of the sleeve, and a material storage space is formed inside the material storage funnel;

[0010] The feeding screw and the inner wall of the sleeve form a material grinding space;

[0011] The feeding screw is inserted in the material grinding space;

[0012] The deposition platform tooling is used to fix non-metallic workpieces;

[0013] The feeding mechanism is used to feed raw materials into the storage space.

[0014] Preferably, the feeding screw comprises a feeding screw clamping portion, a tapered screw, a feeding boss and a stirring pin;

[0015] The feeding screw clamping part, the tapered screw, the feeding boss and the stirring needle are connected in sequence.

[0016] Preferably, the sleeve comprises: a sleeve clamping portion, a material grinding space, a stationary shoulder and a material discharge hole;

[0017] The sleeve clamping portion is provided on the top of the sleeve, and the top or side of the material grinding space is connected to the material storage space;

[0018] A stationary shoulder is formed at the bottom of the sleeve;

[0019] A discharge hole is provided at the bottom of the grinding space, and the continuous dense thermoplastic deposited metal is discharged through the discharge hole;

[0020] The continuous dense thermoplastic deposited metal is formed when the raw materials in the milling space enter a local thermoplastic state under the action of shearing and extrusion, thereby forming a continuous dense thermoplastic deposited metal.

[0021] Preferably, the deposition platform tooling is made of marble; the deposition platform tooling includes a plane or an arbitrary curved surface, and a non-metallic component that matches the plane or arbitrary curved surface structure.

[0022] According to a method for manufacturing a metal / non-metal heterogeneous component provided by the present invention, the following operations are performed using the metal / non-metal heterogeneous component manufacturing equipment described above:

[0023] Step S1: prefabricating a microstructure on the surface to be processed of the non-metal workpiece, and designing the physical and chemical state of the surface of the microstructure;

[0024] Step S2: Select a coating metal and densely fill the coating metal into the microstructure of the surface to be treated by chemical plating to form a metal / non-metal initial interface;

[0025] Step S3: fixing the non-metallic workpiece with the plated metal on the upper surface of the deposition platform tooling;

[0026] Step S4: feeding the powder or granular deposition metal raw material into the storage space of the storage hopper through a feeding mechanism;

[0027] Step S5: Control the deposition tool to move to a preset deposition track starting position on the surface of the non-metal workpiece to be deposited;

[0028] Step S6: Initializing startup parameters, including: the motion trajectory of the deposition tool, the rotation speed of the shaft, the travel speed of the deposition tool, and the feeding speed of the feeding mechanism;

[0029] Step S7: Start the deposition platform shaft to drive the feeding screw to rotate. When the feeding screw is rotating, the raw materials in the storage hopper enter the grinding space. The raw materials in the grinding space enter a local thermoplastic state under the action of shearing and extrusion. The raw materials in the local thermoplastic state continue to be transported downward and transported to the surface of the plated metal through the discharge hole, and the thermoplastic material accumulates.

[0030] Step S8: cumulatively accumulating to form a continuous and dense thermoplasticized deposited metal;

[0031] Step S9: The deposition tool performs continuous deposition according to a preset trajectory to complete the friction stir deposition process of the metal / non-metal heterogeneous component.

[0032] Preferably, step S7 adopts: the powder or granular deposited metal raw material is first conveyed downward by a tapered screw drive, and when it is conveyed to a position where the inner diameter of the tapered screw gradually increases, under the combined effect of the vertical feeding pressure of the tapered screw and the gradually reduced volume of the grinding space to form extrusion, the metal powder or particles are sheared and extruded to enter a local thermal plasticization state.

[0033] Preferably, when continuous and dense thermoplastic deposited metal is accumulated on the surface of the plated metal and in the grinding space, the moving process of the stirring needle is started, and the continuous and dense thermoplastic deposited metal is deposited from the discharge hole to the surface of the plated metal. During the moving process, the deposited metal forms a solid phase metallurgical weld with the plated metal under the action of the stirring needle.

[0034] Preferably, the thermal effect generated by the stirring of the deposited metal during the deposition process is transferred to the initial interface of the metal / non-metal, thereby promoting the formation of metal / non-metal chemical bonding, and at the same time acts on the prefabricated microstructure of the non-metal surface to induce the formation of mortise and tenon interlocking at the metal / non-metal interface, thereby promoting high-strength bonding of the metal / non-metal interface.

[0035] Preferably, the non-metal workpiece includes: polyimide, polyetherimide, carbon fiber composite material or polyetheretherketone polymer material;

[0036] The physical and chemical state of the microstructure surface is set by one or more methods including laser treatment, chemical etching, plasma treatment, and silane coupling agent treatment.

[0037] Preferably, the plated metal includes gold, silver, copper or nickel; the powder or granular deposited metal raw material includes gold, silver or copper.

[0038] Compared with the prior art, the present invention has the following beneficial effects:

[0039] 1. Compared with the existing additive manufacturing method, the present invention adopts the solid phase deposition method to form a strong metallurgical weld between the thermoplasticized metal material and the plated metal in the solid phase through the stirring friction, without defects, and the deposition temperature is low, avoiding thermal damage to non-metallic workpieces;

[0040] 2. Compared with the existing solid-phase additive manufacturing equipment, the present invention adopts continuous feeding (powder or particle) friction stir solid-phase deposition equipment, and utilizes the shearing and extrusion effects of the deposition tool to continuously thermoplasticize the metal powder or particles, with high deposition efficiency. The continuous feeding deposition method allows the deposition process to freely design alloy components, composite material components, etc., and even allows the powder or particle composition to be changed during the deposition process to manufacture gradient materials; the tapered screw enhances the extrusion effect of the powder or particles during the downward conveying process, which can promote its thermoplasticization process during the feeding process; the inner wall of the sleeve can provide intense friction with the thermoplastic material, increase the relative movement trend between the thermoplastic material and the feeding screw, and prevent the problem of material blockage during the deposition process; the feeding boss at the bottom of the feeding screw concentrates the conveying of the thermoplastic material inward, which can improve the deposition accuracy;

[0041] 3. Compared with the existing solid-phase additive manufacturing mode, the present invention proposes to pre-heat-plasticize metal powder or particles in the deposition tool before deposition; the deposited metal is aggregated and softened before reaching the non-metal surface, which can not only maintain relatively low thermal and mechanical conditions on the non-metal surface, which is beneficial for the non-metal substrate to maintain its original performance, but also can greatly reduce the axial force applied during the deposition process. The present invention can match the high degree of freedom and low rigidity of the five-axis linkage platform, ensure the coordinated progress of the deposition process and the five-axis motion, and realize the conformal manufacturing of the curved surface structure;

[0042] 4. Compared with the existing metal / non-metal connection process, the metal / non-metal heterogeneous component proposed in the present invention has a dual interface characteristic, namely the interface between the plated metal and the deposited metal layer and the interface between the plated metal and the non-metal workpiece; during the deposition process, the stirring and friction effect of the stirring needle can promote the formation of a strong metallurgical bond between the deposited metal and the plated metal. Moreover, the thermal effect in the deposited layer during the deposition process can be transmitted to the plated metal / non-metal interface, which can promote the formation of chemical bonding between metal / non-metal on the one hand, and on the other hand, can act on the prefabricated microstructure of the non-metal surface to induce the metal / non-metal interface to form mortise and tenon interlocking, thereby achieving high-strength bonding of the metal / non-metal interface, cooperating with the continuous deposition operation of the deposition tool, and ultimately achieving high-performance manufacturing of metal / non-metal heterogeneous components. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0044] Figure 1 It is a schematic diagram of a metal / non-metal heterogeneous component manufacturing equipment and its overall process proposed by the present invention;

[0045] Figure 2 It is a schematic diagram of the cross section of a non-metallic workpiece after the surface microstructure and physical and chemical state are preset and chemical plating is performed;

[0046] Figure 3 It is a top view of the top feed feed screw, sleeve and storage hopper assembly;

[0047] Figure 4 yes Figure 3 Cross-sectional view of the sleeve along the AA axis;

[0048] Figure 5 is a cross-sectional view of the side-feed feed screw, sleeve and storage hopper assembly;

[0049] Figure 6 This is the front view of the feeding screw;

[0050] Figure 7 It is a top view of the feed screw;

[0051] Figure 8 It is an oblique schematic diagram of metal / non-metal heterogeneous component manufacturing equipment and its overall process.

[0052] Among them, 1-feeding screw; 101-feeding screw clamping part; 102-tapered screw; 103-feeding boss; 104-stirring needle; 2-storage funnel; 3-sleeve; 301-sleeve clamping part; 302-grinding space; 303-stationary shoulder; 304-discharging hole; 4-deposited metal; 5-plated metal; 6-non-metallic workpiece; 601-surface microstructure; 602-mortise and tenon interlocking structure; 7-deposition platform tooling. DETAILED DESCRIPTION

[0053] The present invention is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form. It should be noted that, for those of ordinary skill in the art, several changes and improvements can also be made without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0054] Example 1

[0055] like Figure 1 As shown, a metal / non-metal heterogeneous component manufacturing equipment provided according to the present invention includes: a feeding mechanism, a deposition platform, a feeding screw 1, a storage funnel 2, a sleeve 3, a deposited metal 4, a plated metal 5, a non-metallic workpiece 6 and a deposition platform fixture 7. The feeding screw clamping portion 101 of the feeding screw 1 is installed on the rotating shaft of the deposition platform, and the sleeve 3 is installed at the clamping portion of the deposition platform and is coaxial with the feeding screw 1. The deposition platform fixture 7 is fixed on the lower substrate of the deposition platform, and the non-metallic workpiece 6 is fixed on the deposition platform fixture, and its lower surface is in close contact with the upper surface of the deposition platform fixture 7. The deposition platform fixture 7 is made of marble to reduce vibration and deformation during the deposition process and improve deposition accuracy.

[0056] like Figure 6 , 7 As shown, the feeding screw 1 includes a feeding screw clamping portion 101, a tapered screw 102, a feeding boss 103 and a stirring needle 104. The clamping portion 101 is located at the uppermost end of the entire feeding screw 1, the lower end of the clamping portion 101 is processed with a tapered screw 102, the lower end of the tapered screw 102 is processed with a feeding boss 103, and the lower end of the feeding boss 103 is processed with a plurality of stirring needles 104 distributed in a circumferential array. The inner diameter of the tapered screw 102 gradually increases from top to bottom. The feeding boss 103 is processed with a plurality of feeding threads. The diameter of the feeding boss 103 gradually decreases from top to bottom.

[0057] like Figure 3-5As shown, the sleeve 3 includes a sleeve clamping portion 301, a material grinding space 302, a stationary shoulder 303 and a discharge hole 304. The clamping portion 301 is installed at the clamping position of the deposition platform and is coaxially installed with the feed screw 1. The material grinding space is located in the space formed by the feed screw and the inner wall of the sleeve. The bottom end of the material grinding space is the discharge hole 304. The stationary shoulder 303 and the minimum diameter end face of the feed boss are located in the same plane.

[0058] like Figure 3-5 As shown, the storage hopper 2 is installed above or on the side of the sleeve 3, and the top or side of the grinding space 302 is connected to the storage hopper 2.

[0059] like Figure 2 As shown, a surface microstructure 601 is prefabricated on a non-metal workpiece 6 and the physical and chemical state of the surface is designed at the same time, and the plated metal 5 is densely filled with the surface microstructure 601 by chemical plating to form a plated metal / non-metal initial interface.

[0060] like Figure 1-8 The feeding screw clamping part 101 is installed on the rotating shaft of the deposition platform. In order to meet the requirements of the tool holder clamping of the deposition platform rotating shaft, a positioning plane is processed at the lower end of the clamping part 101. After the feeding screw 1 is installed, the bottom plane of the tool holder coincides with the positioning plane. The sleeve clamping part 301 is installed on the clamping part of the deposition platform. The right-handed threaded screw of the feeding screw 1 matches the clockwise rotation direction of the rotating shaft of the deposition platform, which can effectively transport the material downward. The storage funnel 2 is installed above or on the side of the sleeve 3. The powder / particles are stored in the storage funnel 2 through the feeding mechanism. The extrusion and shearing effect jointly generated by the grinding space 302 formed by the tapered screw 102 and the sleeve 3 realizes the downward transportation and thermal plasticization of the powder / particles. The feeding boss 103 can converge the deposited metal 4 at the discharge hole 304 to improve the accuracy of the deposition process.

[0061] like Figure 1-8 As shown, during the deposition process of the deposition tool according to the preset trajectory, a plurality of stirring pins 104 distributed in a circular array rotate and stir the thermoplasticized deposited metal layer 4, so that it forms a solid phase weld with the plated metal 5 under the action of heat. Here, the length of the stirring pin 104 should be slightly smaller than the thickness of the deposited layer, about 0.1-0.5mm. At the same time, the thermal effect of the deposition process is transmitted to the initial interface of the plated metal / non-metal, which, on the one hand, promotes the formation of chemical bonding between the metal / non-metal, and on the other hand, acts on the prefabricated surface microstructure 601, inducing the metal / non-metal interface to form a mortise and tenon interlocking 602, thereby achieving a high-strength bond between the metal / non-metal.

[0062] like Figure 1-8 As shown, a method for manufacturing a metal / non-metal heterogeneous component proposed by the present invention comprises the following steps:

[0063] Step 1: prefabricate a microstructure 601 on the surface to be processed of the non-metal workpiece 6 by physical and chemical means, and design the physical and chemical state of the surface of the microstructure 601 to provide prerequisites for the subsequent formation of metal / non-metal chemical bonding.

[0064] Step 2, selecting a suitable coating metal 5, and making it densely fill the prefabricated microstructure 601 of the surface to be treated in step 1 by chemical plating method, so as to form a metal / non-metal initial interface.

[0065] Step 3: clamp the non-metallic workpiece 6 with the plated metal 5 on the fixture 7 of the deposition platform, and fix the lower surface of the non-metallic workpiece 6 tightly against the upper surface of the fixture 7.

[0066] Step 4: feeding the powder or granular deposited metal raw material to the storage hopper 2 through the feeding mechanism for temporary storage.

[0067] Step 5, move the deposition tool to the preset deposition track starting position on the surface of the non-metal workpiece 6 to be deposited, adjust the height of the bottom end of the stirring needle 104 from the surface of the metal coating 5 to 0.1-0.5mm, and then set the current position of the deposition tool to zero.

[0068] Step 6, setting the motion trajectory of the deposition tool, the rotation speed of the shaft, the travel speed of the deposition tool and the feeding speed of the feeding device.

[0069] Step 7, start the rotating shaft to drive the feeding screw 1 to rotate, and the powder or granular deposition raw material is first transported downward through the screw 102. When it is transported to the position where the inner diameter of the tapered screw 102 gradually increases, under the combined effect of extrusion formed by the rotational friction of the inner wall of the sleeve 3, the vertical feeding pressure of the tapered screw 102 and the gradual reduction in the volume of the grinding space 302, the metal powder or particles are subjected to severe shearing and extrusion to enter a local thermoplastic state and continue to be transported downward. When it is transported to the surface of the plated metal 5, the thermoplastic material accumulates.

[0070] Step 8: After the process of step 7 continues for a period of time, continuous and dense thermoplastic deposited metal 4 is accumulated on the surface of the plated metal 5, in the cavity formed by the sleeve 3 and the bottom end of the feeding screw 1. At this time, the advancing process of the deposition tool is started, and the continuous and dense thermoplastic deposited metal is deposited from the discharge hole 304 to the surface of the plated metal 5. During the advancing process, the deposited metal 4 forms a solid phase metallurgical welding with the plated metal 5 under the stirring and friction action of the stirring needle 104. In addition, the thermal effect in the deposited metal layer during the deposition process can be transferred to the initial interface of the plated metal 5 / non-metal workpiece 6, which promotes the formation of chemical bonding between metal / non-metal on the one hand, and acts on the prefabricated microstructure 601 on the other hand, thereby inducing the formation of a mortise and tenon interlocking structure 602 on the metal / non-metal interface.

[0071] Step 9: The deposition tool performs continuous deposition according to a pre-set trajectory to complete the friction stir deposition process of the metal / non-metal heterogeneous component.

[0072] Furthermore, the material of the non-metal workpiece 6 in step 1 includes but is not limited to polyimide, polyetherimide, carbon fiber composite material, polyetheretherketone and other polymer materials, and the shape of the non-metal workpiece 6 includes a plane and an arbitrary curved surface; the method of prefabricating the surface microstructure 601 and designing its physical and chemical state includes but is not limited to a mixture of one or more of laser treatment, chemical etching, plasma treatment, silane coupling agent treatment and the like.

[0073] Furthermore, the plated metal 5 in step 2 includes but is not limited to metals such as gold, silver, copper, and nickel.

[0074] Furthermore, the deposition platform tooling 7 in step 3 is made of marble, which can reduce vibration and deformation during the deposition process and improve deposition accuracy. The shape of the deposition platform tooling 7 includes a plane and an arbitrary curved surface, and non-metallic components that match the plane and arbitrary curved surface structures.

[0075] Furthermore, the powder or granular deposited metal 4 in step 4 includes but is not limited to metals such as gold, silver, and copper; the feeding form includes top feeding and side feeding.

[0076] Further, on the basis of ensuring the feasibility of the deposition path on the flat or curved non-metallic workpiece surface, the thermal distribution of the deposition process is predicted by finite element analysis, the deposition partitions and paths are optimized, the deformation and residual stress are reduced, and the pre-planned deposition trajectory of step 5 is formed. The pre-planned deposition trajectory includes but is not limited to Raster, Zigzag, Contour offset, Fermat spiral, Spiral and Fractal curve trajectories and their partition combinations.

[0077] Furthermore, the rotation speed of the shaft, the travel speed of the deposition tool and the feeding speed of the feeding device in step 6 match each other to satisfy the conservation of mass of the material, that is, V 送料装置送料速度 =V 送料螺杆送料速度 =S 沉积层截面积 ×V 沉积工具行进速度 , ensuring the continuity and stability of the deposition process.

[0078] Furthermore, in the continuous deposition process described in step 9, the deposition tool adopts displacement control, pressure control or displacement-pressure mixed control. For the deposition of the planar non-metallic workpiece 6, displacement control can be adopted, that is, the deposition tool maintains a constant height from the non-metallic surface, or pressure control, that is, the deposition tool applies a constant axial pressure to the non-metallic surface; for the deposition of the curved non-metallic workpiece 6, displacement-pressure mixed control is adopted to finely control the thickness of the deposited metal 4 and the geometric accuracy of the metal / non-metallic component.

[0079] The present invention adopts a prefabricated non-metal workpiece 6 surface microstructure 601 and designs the surface physical and chemical state, and then densely fills the surface microstructure through a metal chemical plating process. The friction stirring deposition pretreatment method converts the metal / non-metal connection problem into a non-metal workpiece 6 surface treatment + metal / metal connection problem. The continuous heat-plasticized metal 4 is subjected to the heat of friction stirring in the solid phase to form a firm metallurgical weld with the plated metal 5, and the interface bonding strength is high, and the deposition process temperature is low, avoiding thermal damage to the non-metal workpiece 6. The present invention pre-heats and plasticizes the metal powder or particles in the deposition tool and then deposits them. The deposited metal 4 is aggregated and softened before reaching the non-metal surface 6, which can greatly reduce the axial force applied during the deposition process. The present invention matches the high degree of freedom and low rigidity of the five-axis linkage platform, which can ensure the coordinated progress of the deposition process and the five-axis motion, and realize the conformal manufacturing of the curved surface structure. In the present invention, the workpiece after deposition has a double interface characteristic, that is, the interface between the plated metal 5 and the deposited layer metal 4 and the interface between the plated metal 5 and the non-metal workpiece 6. During the deposition process, the stirring friction of the stirring needle 104 can not only promote the solid phase welding of the deposited metal 4 and the plated metal 5, but also transfer the thermal effect of the deposition process to the interface of the plated metal 5 / non-metal workpiece 6, which, on the one hand, promotes the formation of chemical bonding between metal / non-metal, and on the other hand, acts on the prefabricated microstructure 601 to induce the interface of the plated metal 5 / non-metal workpiece 6 to form a mortise and tenon interlocking 602. In summary, the metal / non-metal heterogeneous components in the present invention form a composite connection through continuous deposition operations, and have high interface bonding strength.

[0080] In the description of the present application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0081] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.

Claims

1. A metal / non-metal heterogeneous component manufacturing equipment, characterized in that: include: Deposition tools, deposition platforms, and feeding mechanisms; The deposition tool comprises: a feeding screw, a storage funnel and a sleeve; The deposition platform comprises: a deposition platform rotating shaft, a deposition platform tooling and a lower substrate of the deposition platform; the deposition platform tooling is installed on the lower substrate of the deposition platform; the feeding screw is installed on the deposition platform rotating shaft, and the feeding screw rotates with the rotation of the deposition platform rotating shaft; the sleeve is coaxial with the feeding screw and is installed at the static clamping position of the deposition platform; The material storage funnel is installed on the top or side of the sleeve, and a material storage space is formed inside the material storage funnel; The feeding screw and the inner wall of the sleeve form a material grinding space; The feeding screw is inserted in the material grinding space; The deposition platform tooling is used to fix non-metallic workpieces; The feeding mechanism is used to feed raw materials into the storage space.

2. The metal / non-metal heterogeneous component manufacturing equipment according to claim 1, characterized in that: The feeding screw comprises a feeding screw clamping portion, a tapered screw, a feeding boss and a stirring needle; The feeding screw clamping part, the tapered screw, the feeding boss and the stirring needle are connected in sequence.

3. The metal / non-metal heterogeneous component manufacturing equipment according to claim 1, characterized in that: The sleeve comprises: a sleeve clamping portion, a material grinding space, a stationary shaft shoulder and a material discharge hole; The sleeve clamping portion is provided on the top of the sleeve, and the top or side of the material grinding space is connected to the material storage space; A stationary shoulder is formed at the bottom of the sleeve; A discharge hole is provided at the bottom of the grinding space, and the continuous dense thermoplastic deposited metal is discharged through the discharge hole; The continuous dense thermoplastic deposited metal is formed when the raw materials in the milling space enter a local thermoplastic state under the action of shearing and extrusion, thereby forming a continuous dense thermoplastic deposited metal.

4. The metal / non-metal heterogeneous component manufacturing equipment according to claim 1, characterized in that: The deposition platform tooling is made of marble; the deposition platform tooling includes a plane or an arbitrary curved surface, and a non-metallic component that matches the plane or arbitrary curved surface structure.

5. A method for manufacturing a metal / non-metal heterogeneous component, characterized in that: The following operations are performed using the metal / non-metal heterogeneous component manufacturing equipment according to claims 1 to 4: Step S1: prefabricating a microstructure on the surface to be processed of the non-metal workpiece, and designing the physical and chemical state of the surface of the microstructure; Step S2: Select a coating metal and densely fill the coating metal into the microstructure of the surface to be treated by chemical plating to form a metal / non-metal initial interface; Step S3: fixing the non-metallic workpiece with the plated metal on the upper surface of the deposition platform tooling; Step S4: feeding the powder or granular deposition metal raw material into the storage space of the storage hopper through a feeding mechanism; Step S5: Control the deposition tool to move to a preset deposition track starting position on the surface of the non-metal workpiece to be deposited; Step S6: Initializing startup parameters, including: the motion trajectory of the deposition tool, the rotation speed of the shaft, the travel speed of the deposition tool, and the feeding speed of the feeding mechanism; Step S7: Start the deposition platform shaft to drive the feeding screw to rotate. When the feeding screw is rotating, the raw materials in the storage hopper enter the grinding space. The raw materials in the grinding space enter a local thermoplastic state under the action of shearing and extrusion. The raw materials in the local thermoplastic state continue to be transported downward and transported to the surface of the plated metal through the discharge hole, and the thermoplastic material accumulates. Step S8: cumulatively accumulating to form a continuous and dense thermoplasticized deposited metal; Step S9: The deposition tool performs continuous deposition according to a preset trajectory to complete the friction stir deposition process of the metal / non-metal heterogeneous component.

6. The method for manufacturing a metal / non-metal heterogeneous component according to claim 5, characterized in that: The step S7 adopts: the powder or particle deposited metal raw material is first conveyed downward by a tapered screw drive, and when it is conveyed to a position where the inner diameter of the tapered screw gradually increases, under the combined effect of the vertical feeding pressure of the tapered screw and the gradual reduction of the volume of the grinding space to form extrusion, the metal powder or particles are sheared and extruded to enter a local thermal plasticization state.

7. The method for manufacturing a metal / non-metal heterogeneous component according to claim 5, characterized in that: When continuous and dense thermoplastic deposited metal is accumulated on the surface of the plated metal and in the grinding space, the moving process of the stirring needle is started, and the continuous and dense thermoplastic deposited metal is deposited from the discharge hole to the surface of the plated metal. During the moving process, the deposited metal forms a solid phase metallurgical weld with the plated metal under the action of the stirring needle.

8. The method for manufacturing a metal / non-metal heterogeneous component according to claim 5, characterized in that: The thermal effect generated by the stirring during the deposition process on the deposited metal is transferred to the initial interface of the metal / non-metal, thereby promoting the formation of metal / non-metal chemical bonding. At the same time, it acts on the prefabricated microstructure of the non-metal surface, inducing the formation of mortise and tenon interlocking at the metal / non-metal interface, thereby promoting high-strength bonding of the metal / non-metal interface.

9. The method for manufacturing a metal / non-metal heterogeneous component according to claim 5, characterized in that: The non-metal workpiece includes: polyimide, polyetherimide, carbon fiber composite material or polyetheretherketone polymer material; The physical and chemical state of the microstructure surface is set by one or more methods including laser treatment, chemical etching, plasma treatment, and silane coupling agent treatment.

10. The method for manufacturing a metal / non-metal heterogeneous component according to claim 5, characterized in that: The plated metal includes gold, silver, copper or nickel; the powder or particle deposited metal raw material includes gold, silver or copper.

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