TW200410773A - Method for making an aluminum alloy wheel rim - Google Patents

Abstract

This invention relates to a method for making an aluminum alloy wheel rim, including the steps of: extruding an aluminum alloy material to form an aluminum alloy plate for making a wheel rim with a desired cross-section; using a top and bottom die having an appropriate curvature along the lengthy direction of the sheet and pressing faces conforming to the cross-section of the wheel rim to apply pressure along the lengthy direction of the sheet in a segment-by-segment manner to make the sheet into a circular wheel rim; welding the joints together after the opposing ends gradually approach each other to form a seam to obtain the semi-product of an aluminum alloy wheel rim. A final product of an aluminum alloy wheel rim is obtained after subjecting the semi-product to annealing, shaping, heat treatment and machining.

Description

200410773

i 吕 合 形 81 Mjf Supported into a circle The present invention is a method for manufacturing aluminum alloy wheels, especially a gold material, which is directly formed by extrusion, and the two shapes are broken according to the required rim to make the alloy The plate uses a set of pressing surfaces that have the same shape as the concrete surface and an appropriate bending angle is extended along the length of the plate. The mold is pressed one by one along the length of the plate. System of law. ^ Prior art: According to the conventional manufacturing method of aluminum alloy wheels, such as US Patent No. 4,589, 177 of Sec0M and US Patent No. 4 '1 85, 370 of Evens, see No. As shown in Figure 1, all aluminum flat plates 1 are first bent into a circle. Refer to Figure 2, and then the joints 2 at the two ends of the two gold flat plates are welded to form a Q gold package A stamping machine equipped with rolling dies of different shapes is used to roll ^ face ^ H of the ring body in different shapes. Refer to Figure 3 to make the aluminum alloy wheels with the required cross-sectional shape in order. 4. Evening because, in these traditional manufacturing processes, in order to make the section q plate-shaped aluminum alloy ring body rolled into the required aluminum alloy wheel = flat, many groups must be installed with different The shape of the shape of the rolling die is to roll-shape the ring body in different shapes to gradually shape the cross-sectional shape. Therefore, it is necessary to configure an array of heavy duty = press in its roll-forming process, causing its equipment. The cost is too high, and the roll forming of different shapes is a business, which not only complicates the processing procedures, but also causes a great wave of time and labor.

Page 4 200410773 I. Description of the invention (2) The operation of the press machine also caused a great waste of energy, resulting in the high production cost of aluminum alloy wheels. In addition, the cold-induced "because of these traditional aluminum alloy rim systems: the flat alloy-shaped cross-section of the inscribed alloy", enter = the same; = in order to gradually form the desired profile & It is very easy to make flat aluminum alloy rims, due to uneven rolling, eight: changes or deformation, resulting in aluminum alloy rims made, 2 low deniers, a serious impact on these traditional inventions Content: There is bismuth here, in order to improve the many shortcomings of the conventional aluminum alloy rim manufacturing method, the inventor finally developed it after a long-term research and experiment = = to produce an aluminum alloy rim manufacturing method of the present invention, mainly based on aluminum Π j material, directly use extrusion molding method, according to the desired shape of the rim section, to produce an aluminum alloy plate, and then use a set of pressing surfaces with the same shape as the rim section, and extend the length of the plate A mold with an appropriate bending angle above and below is used to press the plate one by one along its length to form a ring recognition method. To one purpose of the present invention, the extrusion molding method can be directly used to inscribe Alloy material, according to the required rim section Shape, to produce a Shao alloy plate with the same shape as the rim section, and then press the mold together, press the plate one by one along its length direction, and form a circular rim shape on the plate 'and After gradually closing the two ends to form a seam, weld the seam to

200410773 Fifth, Jincheng will break the bones together 1 round ΐ Do not explain the invention (3) From the beginning of Wu Chengshao alloy wheel rich export ^ 1 line annealing treatment, the shape of the sound is' snail then the semi-finished product Sequentially an aluminum alloy wheel becomes =. The core processing and turning processing, that is, the production of another alloy material of the present invention, according to the required two :::: using extrusion molding, the surface shape is the same, and its ^ > shape, to make a wheel The ring pressing mold presses the second Lu alloy sheet in sections, and then uses the two ends to form-seam welding. The second circle = the shape of the rim, and then the production is completed-:: and; Aluminium alloy wheels with ribs on the inside of the processing area. In order to review the Hunchun g dagger 4> a and its effects, there are-more detailed illustrations of the purpose, shape, and structure on the second edition of the book, detailing the following knowledge and understanding of the following examples and methods: ^ Invention system-a method of manufacturing aluminum alloy wheels, which directly uses the extrusion method, refer to Figure 4 /, according to the ~~ cross section shape of the material ring, first make a Ming alloy plate 10, and then rely on: And the group's side: as shown in Figure 5 of the second reading, extend the length of the plate 10 ^, in order not to apply pressure, make the two ends of the plate 10 divided into a shape of pre- 疋 radian, see Figure 6 As shown. Repeat = In the second embodiment, refer to Figure 5 again, the upper and m are respectively installed to the hydraulic rod of the hydraulic press (not shown) 200410773 V. Description of the invention (4) The upper and lower fixing seats 28 and 38 (shown in the dotted line in the figure *) The corresponding pressing surfaces 21 and 32 on the two molds 20 and 30 can not be made in the shape of the cross section of the rim, so that the The plate 1 〇 can be installed between the corresponding pressing surfaces 2 1, 3 2 of --- ,, 2 0, 30, the two corresponding pressings ^, and the soil opening from 21, 32 and extending the plate 1 〇 The length direction is an appropriate bending angle 0, and the dies are driven by the press to make the two molds 20 and 30 press the sheet 10 to form a curved shape of an angle Θ at the two. The size of the arc angle 0 can be seen from the needs of the operation. The design is best between 15 and 60 degrees. The radius of the arc angle of 1 degree 3 / 'is equivalent to the aluminum alloy wheel to be manufactured. Circle radius. In this example, in order to avoid the aforementioned pressing process, discontinuous deformation occurs between the pressed part of the plate 10 and the adjacent unpressed part. Specially, an auxiliary is installed adjacent to the two sides of the upper mold 20, and the wheel frame 41 of the special auxiliary wheel 40 is fixed to the fixed seat 28 on the hydraulic press. The auxiliary wheels 40 When the upper mold 20 applies pressure to the plate 10 placed on the lower mold 30, the upper mold 20 can act synchronously, so that the adjacent unpressed portions on the plate 10 can follow the arc angle. 0, continuous deformation occurs. ^ After the present invention completes the forming of a predetermined arc θ on the two ends of the plate ^, the two end faces of the aluminum alloy plate 10 will be extended due to the extrusion of the metal molecular structure. Non-uniform deformation occurs in the length direction. Refer to FIG. 7 to make the deformation amount Δ Lc in the central part larger than the two sides Δ Ls. Therefore, in the present invention, the board 10 can be used in the subsequent manufacturing process. The round rim is smoothly pressed and the two ends are evenly abutted to form a joint. The uneven deformation amount Δ L formed by the two end faces of the aluminum alloy plate 10 must be firstly used, as shown in FIG. 8. Remove it. In addition, in order to make the board smoothly pressed into a circle

200410773 V. Description of the invention (5) In the case of a (5) -shaped rim, the inner edge of the rim is close to the two end faces of the material 10-20, and then the length of the rim is shown in the pressing figure, and the two seams are at 51 points. Cast round rims. The two end faces of the aluminum alloy are connected to the aluminum alloy rims: the joints at the ends are closed, and the V-shaped joints with a large outer gap can be formed by a milling machine to form a predetermined joint. Lead angle. Gukou Wuban ^ aluminum alloy plate 10 is placed in the upper and lower molds 20 and 30 directions. For the parts that have not yet been pressed, they are segmented one by one, and the plates are pressed into round wheels. Let's read that the 9th end gradually closes to form a V-shaped seam 51 / then spot welding 60 again, the aluminum alloy plate 10 can be fixed, and the V-shaped seam 51, the brazing material 61 is welded together with the aluminum alloy plate in the V-shaped seam 51, and as shown in FIG. 10, the semi-finished product 50 of the present invention is formed. In Wucheng. After 50 years of semi-finished products of Hai rim, in order to eliminate 5 joints of its seams, the present invention concentrates the thermal stress caused by welding, and arranges its molecular structure evenly. 'The semi-finished products 50 can be annealed, and the annealing is completed. After processing, the semi-finished rim 50 can be placed on another hydraulic press (not shown): between the lower plastic molds 81 and 82, refer to the figure 1 *, the upper and lower plastic molds 81 and 82 It is respectively installed on the hydraulic rod and the fixed seat of the hydraulic press. The shape of the corresponding pressing surface on the plastic mold 8 1 and 82 is exactly the same as the shape of the two sides of the inner edge of the manufactured rim. Therefore, when the two shaping forks 81 and 82 apply pressure to both sides of the inner edge of the semi-finished product 50, the errors generated during the molding process of the shape of the semi-finished product 50 can be corrected, so that the semi-finished product 50 after shaping processing can obtain The inner edge is exactly the same as the rim to be manufactured. 200410773 V. Description of the invention (6) '', the semi-finished product 50 is sequentially heat-treated in the present invention. 俾 Through a series of heat treatment, the material is solidified. Increase its structural strength and use turning Li 'deleted uneven peripheral surface 5 of the semifinished square projection to form a uniform and smooth surface of the outside edge, so that the finished product a finished aluminum alloy rims. In another embodiment of the present invention, referring to FIG. 4 again, when an aluminum alloy plate 10 is manufactured by directly using an extrusion molding method with an alloy material of Ming, an rim section according to a desired rim may be used. Shape, to produce an aluminum alloy plate with the same shape as the cross section of the rim, and the inner edge of which has a rib. In this another embodiment, referring to FIG. 5 and FIG. 6 again, when the aluminum alloy plate 10 is in a press-forming type, the two molds 20 and 30 installed on the hydraulic press correspond to the On the pressing surface 3 2 of the mold 3 〇 below the rib 11, there is a groove 3 1 that can receive the rib 11 1. The aluminum alloy plate 10 with ribs 丨 丨 is then pressed by the pressing mold 20. And 30 sections of pressure to form a round rim, and merged into the follow-up: tp connection, annealing, shaping, heat treatment and turning and other processing and processing of private order 'can produce an aluminum alloy wheel with ribs 1 1 inside ring. In the other embodiment, a plurality of symmetrical holes 13 can be opened in the rib 11, as shown in FIG. 12, and a wheel that can be matched with the automobile wheel hub is locked by the locking element 90. The disk 7 〇 is locked to the holes 13, so that the alloy wheel 50 and the disk 7 provided on the inner edge are firmly combined into one body, without any complicated welding procedures, and 玎Through the ribs 11, the structural strength of the aluminum alloy wheel 50 is effectively increased. According to the above, it is only the best specific embodiment of the present invention, but the structural features of this invention are not limited to this. Anyone skilled in the art is in this 200410773 V. Description of Invention (7), in the field of invention, Changes or modifications that can be easily considered can be covered by the following patents of the present invention.

HIKH Page 10 200410773 Schematic description of the diagram "Schematic description: Figure 1 is a schematic diagram of the aluminum alloy plate in the conventional aluminum alloy rim manufacturing method; Figure 2 is a schematic diagram of the aluminum alloy in the conventional aluminum alloy rim manufacturing method. Figure 3 is a schematic diagram of an aluminum alloy rim made by the conventional aluminum alloy rim manufacturing method; Figure 4 is a schematic diagram of an alloy flat plate in the alloy rim manufacturing method of the present invention; Figure 5 is an aluminum alloy wheel of the present invention Schematic diagram of aluminum alloy in the ring method,

FIG. 6 is a schematic diagram of an aluminum alloy rim made by using the aluminum alloy rim manufacturing method of the present invention; FIG. 7 is a schematic diagram of an aluminum alloy plate in the aluminum alloy rim manufacturing method of the present invention; and FIG. 8 is an aluminum alloy wheel of the present invention. The schematic diagram of the aluminum alloy and aluminum alloy in the rim making method, FIG. 9 is an unintended view of the aluminum alloy rim made by using the aluminum alloy rim making method of the present invention, and FIG. 10 is the aluminum alloy flat plate in the aluminum alloy rim making method of the present invention. Schematic diagram; FIG. 11 is a schematic diagram of an aluminum alloy in an aluminum alloy rim manufacturing method of the present invention,

Fig. 12 is a schematic diagram of an aluminum alloy rim made by using the aluminum alloy rim manufacturing method of the present invention. Representative symbols of main parts: Aluminum alloy plate 1 0 Upper and lower molds 20, 30

Page 11 200410773 Brief description of the drawings Corresponding pressing surface 2 1, 3 2 Upper and lower fixing seats 28, 38 Auxiliary wheel 40 Wheel frame 41

Semi-finished wheels 5 0 V-shaped seams 51 Spot welding 6 0 Aluminum alloy solder 6 1 Upper and lower plastic molds 81, 82 Ribs 11 Grooves 31 Holes 1 3 Locking elements 9 0 Wheel discs 70 Aluminum alloy wheels 5 0

Page 12

Claims (1)

6. Scope of patent application 1. An aluminum alloy wheel rim is directly made by extrusion molding. 包括 // Includes: the shape of the cross section of the ring—aluminum I, and—a group of aluminum alloy materials are reused according to the required wheel. The pressing surface is the same as that of the board. The length of the board is at the same f-section as the appropriate arc angle, and is it applied one by one along the length of the board? · The upper and lower molds extend the board and form it on the board. After the circle forms a seam, the seam 7: shape is formed, and the two ends of the semi-finished product of the shaped rim gradually come. Dry-joined together, the aluminum alloy is completed, and the patented alloy wheel rim No. 1 mentioned in the June patent application, the alloy wheel of the dream alloy described in this alloy can be directly used for extrusion molding, According to the requirements, two cross-sectional shapes are required to produce an aluminum alloy plate with ribs on the inner edge. The aluminum alloy wheels as described in item 1 or 2 of the scope of the patent application, including the upper and lower molds, are installed on the hydraulic rods of a hydraulic press respectively. On the connected upper and lower fixing seats, the corresponding pressing surfaces on the two molds can just be the shape of the rim section to be manufactured, so that the sheet can be installed between the corresponding pressing surfaces of the one tool. The two corresponding pressing surfaces extend an appropriate arc angle along the length direction of the sheet, and then drive the hydraulic press so that the two molds form a curved arc shape on the sheet. 4. The method of manufacturing aluminum alloy wheels as described in item 3 of the Shen / Qing patent range, wherein the size of the arc angle is preferably between 15 and 60 degrees. 5. The method of manufacturing an aluminum alloy rim described in item 3 of the patent application, wherein the radius of the bending angle is equal to the radius of the aluminum alloy rim to be manufactured. 200410773 VI. Application for patent scope D, such as the method of claiming the patent scope, Chu Q method, in which the side of the upper mold is adjacent to: the description of the gold rim system, when the auxiliary wheels are pressed on the seat of the hydraulic press , Can be actuated synchronously, so that the name plate placed on the f plate along the arc angle, to produce a continuous plate adjacent to the part under pressure ',: Shen · ^ the patent described in item 6 Method for manufacturing alloy rims', ~ A mold is first pressed on the plate adjacent to the two ends along its length direction, so that the two ends of the plate are respectively formed into a fixed curved shape. 8. The manufacturing method of aluminum alloy rims as described in item 7 of the scope of patent application, wherein after a predetermined curved arc shape is completed on the two ends of the plate, the sawing machine can be used to form the two end faces of the aluminum alloy plate. Uneven deformation is removed. 9. The method for manufacturing an aluminum alloy wheel as described in item 8 of the scope of patent application, wherein after removing the uneven deformation amount formed at the two ends of the plate, a predetermined guide angle can be formed on the two end surfaces of the plate by a milling machine. When the plate is combined into a round rim, the two ends of the plate are reliably combined to form a V-shaped seam. 10. The manufacturing method of aluminum alloy rims as described in item 9 of the scope of the patent application, wherein after the plate is pressed into a round rim, local spot welding can be applied to the joint to make the plate shape. Into round wheels. 11. Also, the manufacturing method of aluminum alloy rims as described in item No. 丨 0, wherein after the plate is shaped into a round rim, the V-shaped " seam is welded to make Aluminum alloy solder in the joint with one of the plates 200410773 Page 15