TWI231236B - Manufacture method for aluminum alloy rim - Google Patents

Abstract

This invention provides a manufacture method for an aluminum alloy rim, including the production processes of: heating, forge-pressing and forming a given amount of aluminum alloy to make a pre-formed blank of round corner target and an H-shaped pre-formed blank in turn, forging the H-shaped pre-formed blank by the forge-pressing production processes of hole punching and hole expanding thereby turning it into a rough forged blank with expanding holes similar to a rim profile, pre-forging and producing a rough forged blank of expanding holes through the forgeability and malleability of high temperature aluminum alloy blank having the same profile modeling to a rim finished forging mold; placing the high temperature rough forged blank of expanding holes in a pre-heated finished forging mold to forge and form so as to forge and produce a structure for an aluminum alloy rim.

Description

1231236 V. Description of the invention (1) [Technical field to which the invention belongs] The present invention relates to an aluminum alloy forging and shaping method to make rims and high-temperature forging process. Alloy rims have a patent-pending case of light-weight and metal-metal rim manufacturing methods. • Each forming method of light alloy rims consists of a pre-made sand core and cast light rims. The casting process is complex and difficult to control with turning tools and turning. Plastic forming (sp soil metal rims, because the turning tool of the metal has been clearly cut to destroy the rim, which affects the strength of the metal structure of the rim, and the above-mentioned disadvantages in the conventional rim manufacturing method are studied and improved; the method of manufacturing the gold rim, which It is an aluminum alloy rim product that is formed by forming the embryo first, and then forged by flaring forging. It is an aluminum alloy product, and the role of aluminum is strong, and the related practices such as Patent Gazette No. 46 0 34 have been investigated. No. 0), the pre-patent case discloses a method of forming alloys by using alloys, but it is made by its casting quality, and it is made by related techniques During the turning and turning of the rim, the grain structure of the metal surface is even strict and of high quality. Therefore, how to develop and improve it is necessary for the industry to make further progress. [Abstract] The main purpose of the present invention is to provide an aluminum The manufacturing method of alloy rims includes the following steps: firstly, a certain amount of aluminum alloy material is heated, forged and shaped to form a standard center-rounded preformed embryo and a cymbal preformed embryo, and the H-shaped preformed embryo is then Through punching and flaring forging process, the forging can be forged into a toilet.

1231236 V. Description of the invention (2) The forging die with phase-temperature flared rough forging die between forged forging dies whose rim profile is similar to that of the golden blank is better forged in the manufacturing process. Therefore, the invention of the present invention has the invention creation. The flared rough forging embryo has the characteristics of ductility and ductility, and then is placed in a preheated aluminum alloy with the flaring of the contour shape. Furthermore, the gold rims are used to construct gold metal grains in the large industry. The present invention improves the utilization value of the rim. The present invention forges the rough forging into a forging die in advance, because of the rapid forging manufacturing effect of the structure. Sincerity is made by using one and the next, the inner forging results in the integrity of the invention. Make a round rate and quality that are meritorious, and then complete the high shape. The energy method is based on its metal ring products. 'Yes, to improve the [implementation method] To enable your review committee to further To understand the main features, features, and effects of the present invention, I will give a preferred embodiment and illustrate it with the schematic technology as follows: Garden-type and detailed description First of all please refer to the accompanying drawings, this creative system is related to— The manufacturing method of the rim includes the following steps: (1) First, it cuts out a certain amount of alloy material, which can provide a certain amount of aluminum alloy material required to form 2 rims; (2) · will定 定 ^ 绍 合 2 The material is heated and shaped to make a standard center and filleted preformed embryo (丨 〇); = The center axis of its rounded carcass is used as the reference line, which is conducive to the subsequent metal hunting and forging. Operation; (3) · Place the centroid and filleted preformed embryos ^ ○ circle) first in a furnace at a high temperature of 4 500 ° C, and then heat the preformed embryos (or 10) It is placed in a forming die for forging and pressing,

M029A901.ptd Page 5 1231236 V. Description of the invention (3) Cheng y & (2 0) 'is the use of high temperature aluminum alloy blanks when the raw metal flows when the metal stretches the strain phenomenon, which is used for forging Forming a metal rim = the shape of the original embryo; (4). Punching the center of the Η-shaped preformed embryo (20) by a line; In the rough forging embryo forming die for subsequent flaring and forging operations; (5) · The punched Η-shaped preform is first placed at 47 (). 〇Heating in a high-temperature furnace, and then placing the high-temperature forgings into a pre-heated rough forging embryo forming die to forge f2, mouth rough forging embryo (30). Among them, the rough forging embryo forming die is The aluminum alloy high-temperature forging is forged to the same profile as the rim forging die, and the present invention is to pre-forge a flared rough forging embryo (3 Q) similar to the rim profile, which can be beneficial to the subsequent expansion of the high temperature. The rough rough forging blank (30) is placed in the forging rim of a finished forging die; (6) · The flare rough rough forging (30) is placed in a stove at a height of 470 ° C Heating 'and then' put the high-temperature flared rough forging blank (3 Q) into a pre-heated Yuancheng forging die (50) and forging it into shape (as shown in the fifth figure), that is, it uses a high-temperature aluminum alloy The forgeability of the rough forging billet in the forging die and the fluidity of the metal forging and rolling strain, which extrude the high temperature aluminum alloy rough forging billet and cause the phenomenon of metal flow, so that the rough forging billet can be forged into shape. Complete the die cavity between the two-side forming die (5 1, 5 2) and the front and rear side punches (5 5, 5 6) of the forging die (50). Forging into an aluminum alloy rim (40) structure, and finally, it is to make the aluminum alloy rim (40) through heat treatment and mechanical processing to manufacture a product of an aluminum alloy rim. Regarding the technical content of the main process of the present invention and its industrial utilization value, I would like to briefly explain. As described later, the present invention is to heat-forge and shape a certain amount of aluminum alloy material in order to form a standard center and filleted preformed embryo ( 1〇) and one

M〇29A901.ptd

1231236 V. Description of the invention (4) Η-shaped preformed embryo (20), and the flaring forging process obtains a forged embryo (30), and the present invention is a metal fluidity which is to extend strain, & (5 0) For the operation of forged rim products with the same profile, the alloy's metal grains are high-temperature grains. The structure is complete and unknown. The strength of the rims made by turning tools and turning plasticity is better, that is, It ’s hard to beat, and its turning tool has a clear structure. Furthermore, the high-side forming die (51, 52) and punch of the present invention are quickly forged into a rim product ^, efficiency and quality, in a few minutes For a long time, the material of the big rim warm rim material is long; the material of the rim material will produce a bright temperature; ^ The metal of the rim alloy alloy rim has been specifically and significantly improved. This proves that the method of the invention is effective = the invention of 増 jin creation. 'As mentioned above, the present invention is not only able to greatly improve the rim-shaped preform (20) of the rim, and then through punching and forming a flared rough forging 咼 Wenming alloy blank that is similar to the rim contour. The forgeability and its further forging into a rough forging flared (30) with the rim to complete the forging and flaring, can be beneficial to the subsequent due to the extended strain state of aluminum extrusion in the forging process of the present invention, so its metal It is damaged, and its metal strength is naturally lower than that of metal wheels known in the Spinning operation (Spinning operation) technology. Turning and turning have turned and cut and damaged the surface of the metal. The forging time of the head (5 5, 5 6) in the mold only takes a few seconds, so the method of the present invention can greatly improve the wheel. The conventional turning and turning rim process often not only affects the rim manufacturing efficiency, but also sometimes turns turning. In the manufacturing process, the disadvantages of high temperature drop are caused. Therefore, the conventional manufacturing method will have strict structural strength and manufacturing quality. The disadvantages of the manufacturing method of the turning wheel of the rim are that it has industrial use value, but it is unexplainable. One of Ming alloy wheels Making method of manufacturing efficiency and quality, and it can also enhance

1231236

M029A90Lptd Page 8 1231236 Brief description of the drawings Brief description of the drawings: The first picture is a block diagram of the manufacturing process of the aluminum alloy wheel of the present invention. The second figure ... is a partial cross-sectional view of the centroid and filleted preforms in the process of the embodiment of the present invention. The third figure is a cross-sectional view of a pre-shaped preform in the process of the embodiment of the present invention. The fourth figure is a cross-sectional view of the flare rough forging embryo in the process of the embodiment of the present invention. The fifth figure is a side cross-sectional view of a completed forging die in a closed die state in the process of the embodiment of the present invention. Fig. 6 is a cross-sectional view of an aluminum alloy rim forged in an embodiment of the present invention. The seventh figure: is a perspective view of an aluminum alloy rim forged by an embodiment of the present invention. Description of the representative symbols of the main component parts of the present invention: (10) ... standard center and filleted preformed embryo (20) ... Η-shaped preformed embryo (30) ... .. Flared rough forging embryo (40) ... Aluminum alloy wheel (50) ... Complete forging die (5 1, 5 2). · Two-side forming die (5 5, 5 6): Front and rear punch

M029A901.ptc! Page 9

Claims (1)

1231236 VI. Application for Patent Scope 1. A method for manufacturing aluminum alloy wheels, the manufacturing method includes the following steps: (1). First, sawing and cutting a certain amount of aluminum alloy material; (2). Heating and shaping to form a standard center and filleted preformed embryo: (3). Placing the standard center and filleted preformed embryo of Nanwen in a forming mold to forge into a preformed embryo; (4) Punching the center axis of the preformed embryo; (5) placing the preformed embryo that has been punched at a high temperature into a rough forging embryo forming die for forging into a flare rough forging embryo; (6) The flared rough forged embryo at a high temperature is placed in a completed forging die to forge an alloy rim structure. 2. A method for manufacturing an aluminum alloy wheel as described in item 1. of the scope of the patent application, wherein the center of mark and rounded preformed embryo are heated in a furnace with a high temperature of 450 t. 3. A method for manufacturing an aluminum alloy rim according to item 1. or 2. of the scope of the patent application, wherein the center of mark and the filleted preformed embryo system are placed in a forming die and forged into a cast shape. Preformed embryos. 4. A method for manufacturing an aluminum alloy rim according to item 1 of the scope of the patent application, wherein the preformed blank of the punching is heated in a furnace at a high temperature of 470 ° C. 5 · A method for manufacturing an i-lu alloy rim according to item 1 of the scope of the patent application, wherein the flare rough forging embryo is placed in a furnace heated at a high temperature of 4 70 ° C. 0 M029A901.ptd Page 10 1231236 M029A901.ptcl Page 11