摘要
针对DC03盒形件的冲压开裂,从开裂件截取试样进行组织观察和拉伸性能测试,结合有限元仿真对拉伸工艺过程进行分析。结果表明:铁素体晶粒尺寸不均匀会造成冲压件过早开裂,优化压边力可以避免起皱和开裂缺陷,从而获得无缺陷的成品。
To the problem of punching cracking of DC03 box - shape parts, the sample got from the parts is observed in structure and tested for its tension property, the drawing process is analyzed based on finite ele- ment simulation. It is showed from the result that inhomogeneous grain size of ferrite can make the parts cracked too early, the defects of crack and wrinkling can be avoided through optimization of pressure - pad - force, and products without defects got.
出处
《河北冶金》
2013年第2期11-13,50,共4页
Hebei Metallurgy
关键词
盒形件
冲压
失效
box - shape parts
punching
failure
