Press Forging Forming of Stepped Holes in Thick Sheet Metal
Press Forging Forming of Stepped Holes in Thick Sheet Metal
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DOI：
10.4028/www.scientific.net/amr.706-708.234
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发表时间：
2013-06
期刊：
影响因子：
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通讯作者：
Xu Cao;K. Wang;Yuh-Puu Han;Chong Lin
中科院分区：
文献类型：
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作者：
Xu Cao;K. Wang;Yuh-Puu Han;Chong Lin
厚板冲压锻造成形是目前研究中提出的一种组合挤压工艺。提出了一种厚板阶梯孔两步法模锻新工艺方案。利用DEFORM-3D有限元软件对两步成形过程进行了有限元分析。得到了有效应变和有效应力的分布。研究表明，该工艺不仅可以形成阶梯孔，而且可以提高板材零件阶梯孔的表面质量和强度。根据数值模拟的工艺参数，设计了实验模具，模拟结果与实验数据吻合较好。
Press forging forming of thick sheet metal is a combined extrusion process, which is put forward in the presently study. A new technological scheme for a two-step press forging of stepped holes in a thick metal sheet was proposed. Finite element analysis on the two-step process is carried out by using DEFORM-3D. Distributions of effective strain and effective stress were obtained. The study showed that the process not only can form the stepped holes, but also can increase the surface quality and strength of stepped holes in sheet metal parts, According to the numerical simulations process parameter, an experimental die was designed, the simulation results were in good agreement with the experimental data.