模具工业
模具工業
모구공업
DIE & MOUID INDUSTRY
2014年
2期
23-26,33
,共5页
成形工艺%双层板%拉深%起皱%破裂%管口
成形工藝%雙層闆%拉深%起皺%破裂%管口
성형공예%쌍층판%랍심%기추%파렬%관구
forming process%double plate%drawing%wrinkling%fracture%pipe orifice
针对不等宽不锈钢双层板汽车消声器外壳成形中出现的起皱和破裂问题，结合零件结构特点，详细分析了问题可能产生的原因，并通过有限元数值仿真提出了合理的成形工艺方案。分析结果表明，对该类零件采用二次拉深工艺方案，能够使零件成形时材料流动均衡，极大地改善零件小端处的破裂、管口处和大端处的起皱和材料层叠问题。
針對不等寬不鏽鋼雙層闆汽車消聲器外殼成形中齣現的起皺和破裂問題，結閤零件結構特點，詳細分析瞭問題可能產生的原因，併通過有限元數值倣真提齣瞭閤理的成形工藝方案。分析結果錶明，對該類零件採用二次拉深工藝方案，能夠使零件成形時材料流動均衡，極大地改善零件小耑處的破裂、管口處和大耑處的起皺和材料層疊問題。
침대불등관불수강쌍층판기차소성기외각성형중출현적기추화파렬문제，결합령건결구특점，상세분석료문제가능산생적원인，병통과유한원수치방진제출료합리적성형공예방안。분석결과표명，대해류령건채용이차랍심공예방안，능구사령건성형시재료류동균형，겁대지개선령건소단처적파렬、관구처화대단처적기추화재료층첩문제。
The cause of the wrinkling and fracture problem appeared in the forming of un-equal width and double plate automobile muffler shell made of stainless steel was analyzed and a forming process scheme was proposed based on finite element numerical simulation. The result shows that two-step drawing process can balance the material flow in the form-ing which will greatly decrease the fracture in the part’s small end, the wrinkling in the pipe orifice and big end and the stack-up of materials.
