高强度钢制异形件制坯工艺优化研究

Process Optimization of Billet Making of High Strength Steel Shaped Parts

利用有限元数值模拟软件Deform-3D,对锁闩的不同制胚方案进行模拟,对比分析模拟结果,优化方案。进一步对预锻模具进行应力分析,根据模具应力分析结果,进一步验证优化方案,以改善模具结构,提高模具寿命。结果表明:预锻模具应力集中主要分布在模腔台阶处和模具中间区域,当坯料角度α=60°时,能有效地减少预锻成形的单位应力,降低挤压力,提高模具寿命。

Using the finite element numerical simulation software Deform-3D to simulate the different schemes of embryo for the latches,compares and analysis of the simulation results,optimized scheme. Further to,the stress analysis was carried out on the preliminary composition to find the mold stress distribution and improve the mould structure and the die life. Results show that preliminary forging die with stress concentration is mainly distributed in the mold cavity steps and the middle of mold. when the blank angle α = 60°,unit stress in the process of the forging can effectively reduce,the extrusion pressure will reduce and the die life will improve.