一种大型车用铝合金轮辋的等温成形工艺

康凤; 杨鄂川; 陈强; 黄树海; 胡传凯; 舒大禹

doi:10.15980/j.tzzz.2014.09.045

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一种大型车用铝合金轮辋的等温成形工艺
Isothermal-Forging of the Aluminum Alloy Wheel Rim
2014年34卷第9期页码：907-908
纸质出版日期： 2014 ，
DOI： 10.15980/j.tzzz.2014.09.045

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[1]康凤,杨鄂川,陈强,黄树海,胡传凯,舒大禹.一种大型车用铝合金轮辋的等温成形工艺[J].特种铸造及有色合金,2014,34(09):907-908.

Kang Feng, Yang Echuan, Chen Qiang, et al. Isothermal-Forging of the Aluminum Alloy Wheel Rim[J]. Special Casting & Nonferrous Alloys, 2014,34(9):907-908.
[1]康凤,杨鄂川,陈强,黄树海,胡传凯,舒大禹.一种大型车用铝合金轮辋的等温成形工艺[J].特种铸造及有色合金,2014,34(09):907-908. DOI： 10.15980/j.tzzz.2014.09.045.

Kang Feng, Yang Echuan, Chen Qiang, et al. Isothermal-Forging of the Aluminum Alloy Wheel Rim[J]. Special Casting & Nonferrous Alloys, 2014,34(9):907-908. DOI： 10.15980/j.tzzz.2014.09.045.

摘要

采用等温成形工艺

制作了一种大型车用铝合金轮辋。成形过程中

坯料和模具始终保持相同温度和恒定的应变速率

避免了坯料在变形过程中温度的降低和冷模效应;采用穿孔挤压工艺

预制管料坯

通过多次反挤压达到构件要求的变形量

大幅度降低了成形力

消除了轮辋内部的裂纹缺陷。

Abstract

A large aluminum alloy wheel rim for the vehicle was produced by the isothermal forging.During isothermal forging process

blank and mould keep the same temperature and constant strain rate to avoid the decrease of blank temperature during deformation process and cooled mould effects.Using throughout-hole extrusion and pre-producing blank

the required deformation rate can be realized through continuous reverse extrusion

greatly decreasing deforming force and eliminating the crack in wheel rim.