TWI645954B - Metal member with bonding structure manufacturing method - Google Patents

Abstract

The present invention relates to a method of manufacturing a metal member having a joint structure, wherein the metal member includes a metal substrate having a first surface, the joint structure directly formed on the first surface, the joint structure including a plurality of protrusions, and A plurality of grooves are formed between the protrusions, the grooves having a root width at a position away from the first surface and a top width at a position adjacent to the first surface, the root width being greater than the top width. Thereby, the bonding fastness of the metal substrate and the covering can be improved, and the manufacturing process and the manufacturing time can be simplified.

Description

Metal part manufacturing method with joint structure

The invention relates to a joining technique of a composite material, in particular to a metal piece having a joint structure, a manufacturing method and a metal strip.

With the continuous advancement and development of technology, the application of composite materials in various products has become increasingly common, such as the casings and mechanical parts of mobile phones, tablet computers, notebook computers, etc.; fan blades, automobile and motorcycle parts, medical equipment, Appliance shells or spare parts, helmets; steam locomotive exterior parts and internal structural parts, aircraft interior and exterior parts, propellers, general hull structural parts, military steel helmets, bulletproof parts, sanitary equipment, building materials, etc. are numerous. The finished product produced by the product not only has the advantages of light weight, thinness, good appearance and the like, but also can effectively reduce electromagnetic wave leakage.

Conventionally used for the bonding of metal sheets and plastics, etc., the most widely used method is chemical etching. First, the surface to be etched is plated and sealed, and then the whole part is immersed in chemicals. The chemical agent is used to slowly erode the other surface of the metal sheet to form a hole, and then the plastic is coated on the metal sheet having the hole, and the plastic is combined after being solidified.

However, it is conventionally used for the bonding of metal sheets and plastics and the like, and there are the following problems, whether it is electroplating or etching, the processing speed is quite slow and lengthy, and it is not economical, and such plating or etching The liquid used will cause serious environmental problems later. The holes formed by the chemical etching process are not only small in aperture but also shallow in depth, resulting in bonding of the metal sheet and the plastic. The strength cannot be effectively improved, and it can only be used for small-area partial joints or products with low joint strength. Each of the holes is formed independently of each other. In the process of entering the hole, the plastic is often unable to be embedded due to poor exhaust gas, and the joint force is insufficient and the metal sheet cannot be effectively joined to a large area.

An object of the present invention is to provide a metal member having a joint structure, a manufacturing method, and a metal strip which can improve the joint fastness of the metal substrate and the covering, and can simplify the process and shorten the manufacturing time.

In order to achieve the above object, the present invention provides a method of fabricating a metal member having a joint structure, the steps comprising: a) forming a plurality of protrusions and a plurality of grooves on a surface of a metal substrate by forming; and b) pressing Each of the protrusions is plastically deformed such that the width of the root of the groove is greater than the width of the top of the groove.

In order to achieve the above object, the present invention provides a metal member having a joint structure including a metal base body and a joint structure, the metal base body having a first surface; the joint structure directly formed on the first surface, the joint structure a plurality of protrusions are formed, and a plurality of grooves are formed between each of the protrusions, the groove having a width at a position away from the first surface and a top width adjacent to the first surface, the root The width is greater than the top width.

In order to achieve the above object, the present invention provides a metal strip having a joint structure, comprising an elongated metal base and an elongated joint structure, the elongated metal base having a first surface; the strip shape The joint structure is directly formed on the first surface, the joint structure includes a plurality of protrusions, and a plurality of grooves are formed between the protrusions, the groove having a width and a proximity adjacent to the first surface The first surface is located at a top width that is greater than the top width; wherein the elongated metal substrate and the elongated bonded structure are wound into a ring.

The invention also has the following effects: the grooves are formed into a small upper and lower shape by using the respective grooves, and the covering material can form a barb structure after being hardened into the respective grooves, and can not withstand the vibration, impact and heat caused by the long-term environment. In the case of ups and downs, it is more able to maintain the strength and integrity of the overall structure. When the communication grooves are connected to each other, the coverings can be sequentially covered on the surface of the metal substrate, and the gases in the respective grooves of the metal substrate can be discharged one by one. In turn, the bonding strength of the covering to the metal matrix is increased. The production method of the invention not only can be rapidly mass-produced, but also greatly reduces the cost, and the finished product produced by the invention has the advantages of light weight, thinness, good appearance texture and reduced electromagnetic wave leakage.

10, 10'‧‧‧ metal matrix

11‧‧‧ first surface

12‧‧‧ second surface

20‧‧‧ joint structure

21‧‧ ‧ convex

211‧‧‧ top

212‧‧‧ concave arc

213‧‧‧ pit

22‧‧‧ Groove

W1‧‧‧ root width

W2‧‧‧ top width

23‧‧‧Connecting slot

5, 5' ‧ ‧ presses

51‧‧‧ protruding block

6‧‧‧Punch

61‧‧‧ protruding strip

8‧‧‧ Covering

a~c‧‧‧step

100A‧‧‧long metal base

200A‧‧‧Large joint structure

Figure 1 is a flow chart of the method of the present invention.

Figure 2 is a cross-sectional view showing the first embodiment of the present invention and the presser before being compressed.

Figure 3 is a cross-sectional view showing the first embodiment of the present invention and the presser after being compressed.

Figure 4 is a cross-sectional view of the second embodiment of the present invention and another presser before being compressed.

Figure 5 is a cross-sectional view showing a second embodiment of the present invention and another presser having been compressed.

Figure 6 is a front cross-sectional view showing a second embodiment of the present invention and a punch without being punched.

Figure 7 is a perspective view showing the appearance of the second embodiment of the present invention after completion of each step.

Figure 8 is a cross-sectional view showing a second embodiment of the present invention.

Figure 9 is a cross-sectional view showing a second embodiment of the present invention in combination with a covering.

Figure 10 is a cross-sectional front view showing the third embodiment of the present invention without being pressed.

Figure 11 is a cross-sectional front view showing the fourth embodiment of the present invention without being pressed.

Figure 12 is a perspective view showing the appearance of the fifth embodiment of the present invention before being pressed by the presser.

Figure 13 is a perspective view showing the appearance of a sixth embodiment of the present invention after being pressed by a presser.

Figure 14 is a perspective view showing the appearance of a seventh embodiment of the present invention after being pressed by a presser.

Figure 15 is a perspective view showing the appearance of the eighth embodiment of the present invention after being pressed by a presser.

Figure 16 is a plan view showing the ninth embodiment of the present invention after being pressed by a presser.

Figure 17 is a plan view showing a tenth embodiment of the present invention which has been pressed by a presser.

Figure 18 is a plan view showing the eleventh embodiment of the present invention after being pressed by a presser.

Figure 19 is a plan view showing the twelfth embodiment of the present invention which has been pressed by a presser.

Figure 20 is a perspective view showing the appearance of a thirteenth embodiment of the present invention.

Figure 21 is a perspective view showing the appearance of a fourteenth embodiment of the present invention.

Figure 22 is a perspective view showing the appearance of the metal strip of the present invention.

The detailed description and technical content of the present invention are set forth in the accompanying drawings.

1 and 7, the present invention provides a method for fabricating a metal member having a joint structure, the steps comprising: a) forming a plurality of protrusions 21 and a plurality of grooves 22 on a surface of a metal substrate 10; The metal substrate 10 in this step may be a plate member, a forged piece or a cast piece made of a metal material such as an aluminum alloy, a magnesium alloy, an aluminum-magnesium alloy or a stainless steel, and the metal base 10 is applicable to a mobile phone, a tablet computer, The outer casing of the product such as a notebook computer or a remote control, an oven, a microwave oven, etc., the metal base 10 has a first surface 11 and a second surface 12 formed on the back of the first surface 11. The forming process can be formed by rolling, stamping, laser, in-mold forming, etc. This embodiment is described by a rolling method. When the metal substrate 10 is conveyed by the conveyor belt, the roller is used (not shown) ) bumps and depressions formed on the surface The groove applies a rolling process to the first surface 11, i.e., a plurality of continuous projections 21 and a plurality of grooves 22 (shown in Fig. 2) can be formed simultaneously on the first surface 11.

The section top portion 211 of each of the protrusions 21 may be a trapezoidal shape that protrudes outward and has an upper width smaller than the lower width (as shown in FIG. 2), an inverted V shape, a straight plane (as shown in FIG. 4), or an outward convex. The semicircular shape (as shown in FIG. 11) and the like may also be a concave arc 212 that is trapped inward (as shown in FIG. 10). Moreover, the shape of each convex body 21 may be a solid diamond shape (as shown in FIG. 12), a long straight strip shape (as shown in FIG. 13), a wavy strip shape (as shown in FIG. 19), a solid rectangle, and a solid cross shape. , solid triangles, solid hexagons or solid cylindrical shapes. Further, each of the protrusions 21 may be a non-geometric or irregular shape in addition to various geometric shapes as in the foregoing embodiments.

Each of the grooves 22 may be disposed in an obliquely intersecting manner to form a plurality of rhombic protrusions 21 (shown in FIG. 12) between the grooves 22; each of the grooves 22 may also be longitudinally spaced to each other. A plurality of elongated protrusions 21 (shown in FIG. 13) are formed between the grooves 22; each of the grooves 22 may be disposed in a lateral direction and a longitudinal direction so as to form a plurality of square protrusions 21 between the grooves 22. As shown in FIG. 14; or each of the grooves 22 may be arranged in a wavy interval to form a plurality of undulating protrusions 21 (as shown in FIG. 19) between the grooves 22.

b) Each of the protrusions 21 is plastically deformed by a presser 5 such that the root width W1 of the groove 22 is greater than the top width W2 of the groove 22.

The step b) includes a step b1), wherein the top of each of the protrusions 21 is pressed by a flat bottom presser. Referring to FIG. 2 and FIG. 3, the presser 5 is a flat bottom press. The inverted V-shaped top portion 211 of each convex body 21 is plastically deformed by the flat bottom press 51 so that the root width W1 of the concave groove 22 is larger than the top width W2 of the concave groove 22.

The step b) includes a step b2), wherein the presser 5' having a plurality of protruding blocks 51 is pressed against the top of each of the protrusions 21, so that a concave is formed in each of the protrusions 21, respectively. Pit 213. Referring to FIG. 4 and FIG. 5 , the presser 5 ′ is provided with a plurality of protruding blocks 51 , and each of the protruding blocks 51 applies plastic deformation to the straight flat top 211 of each convex body 21 , thereby Each of the projections 21 is formed with a recess 213, and the root width W1 of the recess 22 is larger than the top width W2 of the recess 22, thus constituting the joint structure 20 of the present embodiment.

The shape of the protruding block 51 may be a rectangle, a cross, a triangle, a hexagon or a circle, and the shape of the recess 213 is the same as the shape of the protruding block 51, and each convex body 21 is in each convex block. After pressing 51, the appearance shape of each convex body 21 is formed into a hollow rectangle (as shown in FIG. 14), a hollow cross shape (as shown in FIG. 15), a hollow triangle (as shown in FIG. 16), and a hollow hexagon. (or called: honeycomb) (as shown in Figure 17), hollow cylindrical (as shown in Figure 18) or hollow diamonds.

Further, the cross-sectional shape of each of the protruding blocks 51 may be trapezoidal, V-shaped or semi-circular, so that the convex bodies 21 are formed with pits 213 having a V-shaped cross section, a semicircular shape or a trapezoidal shape.

The foregoing steps b1) and b2) may be carried out independently, or the step b1) may be followed by the continuous processing of the step b2), that is, the inverted V-shaped top of each convex body 21 by the flat bottom press 5 first. After the plastic deformation is applied to the 211, the other presser 5' having the plurality of protruding blocks 51 is pressed with the plastic flat deformation corresponding to the straight flat top 211 of each convex body 21, thereby making the groove The root width W1 of 22 is larger than the top width W2 of the groove 22, thus constituting the joint structure 20 of the present embodiment.

c) Each of the protrusions 21 of the step b) is punched by a punch 6 so that a communication groove 23 is formed in each of the protrusions 21. Referring to FIG. 6 to FIG. 8 , a plurality of protruding strips 61 are formed on the bottom surface of the punching device 6 , and each convex body 21 is punched by each protruding strip 61 so as to be in each convex body 21 . A communication groove 23 is formed to constitute the joint structure 20 of the present embodiment.

Referring to FIG. 9, a covering 8 can be formed on the bonding structure 20 in a covering manner, wherein the covering 8 can be non-metallic plastic, rubber, glass, ceramic, etc., or non-weldable metal and Metal or the like, wherein the coating 8 has a melting point lower than the melting point of the metal substrate 10 if it is a metal, and after the coating 8 is solidified or solidified, the metal substrate 10 and the covering 8 can be formed into a riveting effect and tightly joined. .

Referring to FIG. 6 again, the foregoing manufacturing method can produce a metal member having a joint structure including a metal base 10 and a joint structure 20. The metal base 10 has a first surface 11 and is formed on the first surface 11 a second surface 12 of the back side; the joint structure 20 is formed on the first surface 11, the joint structure 20 includes a plurality of protrusions 21, and a plurality of grooves 22 are formed between the protrusions 21, and the grooves 22 are away from each other. The position of the first surface 11 has a width W1 and a top width W2 at a position adjacent to the first surface 11, the root width W1 being greater than the top width W2.

Referring to FIG. 20 and FIG. 21, in the metal member having the joint structure of the present invention, the metal base 10 may be a cylindrical metal base 10 as in the present embodiment, in addition to the flat type of the above embodiments. The joint structure 20 is formed on the circumferential surface of the metal base 10'. The joint structure 20 of the present embodiment includes a plurality of protrusions 21, and a plurality of grooves 22 are formed between the protrusions 21, thereby making the protrusions 21 constitutes a quadrilateral shape, wherein the root width W1 of the groove 22 is larger than the top width W2 (see FIG. 3), the convex body 21 in FIG. 20 is a solid quadrilateral, and the convex body 21 in FIG. 21 is a hollow quadrilateral having a Pit 213.

In addition, in the metal member having the joint structure of the present invention, the joint structure 20 may be provided on the first surface 11 and the second surface 12 of the metal base 10 in addition to the one surface of the above embodiments. Structure 20; Similarly, the joint structure 20 can be arranged in a comprehensive manner on one side, and can also be set according to actual use requirements.

Referring to FIG. 22, the present invention further provides a metal strip having a joint structure, comprising an elongated metal base 100A and an elongated joint structure 200A, wherein the elongated joint structure 100A and the elongated joint structure For the detailed structure of 200A, reference may be made to the metal substrate 10 and the bonding structure 20 shown in FIG. 2 to FIG. 15, the elongated metal substrate 100A having a first surface 11 and a second surface 12 formed on the back of the first surface 11; The elongated joint structure 20 is disposed on the first surface 11, the elongated joint structure 20 includes a plurality of protrusions 21, and a plurality of grooves 22 are formed between the protrusions 21, and the grooves 22 are adjacent to the second surface 12. The position has a width W1 and a top width W2 at a position away from the second surface 12, and the width of the root width W1 is greater than the width of the top width W2; wherein the elongated metal base 100A and the elongated joint structure 200A are rollable Wrap it into a ring.

In summary, the metal member with the joint structure of the present invention, the manufacturing method and the metal strip can achieve the intended use purpose, and solve the lack of the conventional one, and the invention patent is completely in line with the novelty and the progressiveness. Apply for the requirements and apply for the patent law. Please check and grant the patent in this case to protect the rights of the inventor.

Claims (7)

A method for manufacturing a metal member having a joint structure, the steps comprising: a) forming a plurality of convex bodies and a plurality of concave grooves by rolling on a surface of a metal substrate, and the top of each of the convex bodies is convex outwardly a trapezoidal, inverted V-shaped, semi-circular or concave arc that is recessed inwardly; and b) plastically deforming the top of each of the convex bodies by a flat-bottoming press such that the root width of the groove is greater than the groove The width of the top. The method for manufacturing a metal member having a joint structure according to claim 1, further comprising a step c), wherein the step c) applies a punch to each of the protrusions of the step b), thereby The convex body is formed with a communication groove. A method of manufacturing a metal member having a joint structure according to claim 1, wherein the metal substrate is a flat plate, a cylinder or an elongated strip. A method of manufacturing a metal member having a joint structure according to claim 1, wherein each of the protrusions has a shape of a hollow quadrangular shape, a hollow cross shape, a hollow triangle shape, a hollow hexagon shape or a hollow cylindrical shape. The method for manufacturing a metal member having a joint structure according to claim 1, wherein each of the protrusions has a shape of a solid quadrangular shape, a long straight strip shape, a wavy strip shape, a solid cross shape, a solid triangle shape, a solid hexagon shape or a solid cylinder shape. shape. A method of manufacturing a metal member having a joint structure according to claim 1, wherein each of the grooves is a laterally and longitudinally intersecting or obliquely intersecting configuration. A method of manufacturing a metal member having a joint structure according to claim 1, wherein each of the grooves is a longitudinally spaced configuration or a wavy spaced configuration.