中国机械工程 ›› 2015, Vol. 26 ›› Issue (12): 1684-1689.

• 材料工程 • 上一篇    下一篇

中型卡车胀压成形桥壳预成形管坯的设计及成形分析

王连东;庞蒙;周立凤;崔亚平   

  1. 燕山大学,秦皇岛,066004
  • 出版日期:2015-06-25 发布日期:2015-06-29
  • 基金资助:
    河北省自然科学基金资助项目(E2012203022)
    Hebei Provincial Natural Science Foundation of China(No. E2012203022);

Preforming  Tube's  Design and Deformation  Analyses   of  Medium-sized  Truck Bulging-pressing Axle  Housing

Wang Liandong;Pang  Meng;Zhou  Lifeng;Cui Yaping   

  1. Yanshan University,Qinhuangdao,Hebei,066004
  • Online:2015-06-25 Published:2015-06-29
  • Supported by:
    Hebei Provincial Natural Science Foundation of China(No. E2012203022);

摘要:

基于圆形管坯压制成异型截面的变形分析,提出了中型卡车胀压成形桥壳预成形管坯的设计准则。针对载重5t卡车桥壳,介绍了胀压成形的工艺过程,设计30组前盖半径、后盖半径不同的预成形管坯,使用ABAQUS软件进行整个成形过程的有限元模拟。通过对预成形管坯液压胀形过程和压制成形过程的成形性分析,确定了前盖系数Km、后盖系数Kn的取值范围。选取基准回转体及一种典型的非对称预成形管坯,分别进行胀压成形实验,结果表明:前者压制成形阶段后盖处胀裂,后者成功地试制出样件,成形状况好,而且成形过程中管坯壁厚值与模拟值基本吻合。

关键词: 汽车桥壳, 胀压成形, 预成形管坯, 设计准则, 有限元模拟

Abstract:

This paper  proposed the preforming tube's  design criteria of medium-sized truck bulging-pressing axle housing  based  on  the  deformation analyses of round  tube  blank   pressed into  special section.For a truck axle housing with the load of  5t,the bulging-pressing deformation   technology was introduced and  30 groups of preforming   tubes with different front cover ratius and different rear cover ratius were designed.And the  whole forming process was simulated by using ABAQUS software.Through the formability analyses of  preforming tube's  bulging and pressing processes,the front cover scaling factorKm  and  the rear cover scaling factorKn  were determined.The reference body of  revolution and   a  typical non-symmetrical  preforming tube were selected for  bulging-pressing  tests.It  is found that the former's  rear cover  is  cracked in the forming process and the later successfully trial produces   sample with good forming,and the measured values generally align with  the simulated values of  wall  thickness  in  the  forming  process.

Key words: automobile housing;bulging-pressing , deformation;preforming tube;design , criteria;finite element simulation

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