The present invention provides on-line cold bent steel secondary punch mold and punchingmethod, and belongs to the field of plastic forming technology for metal.
本发明提供了一种在线冷弯型钢二次冲切模及其冲切方法，属于金属塑性成型技术领域。
2
Mechanical punching Pile Foundation construction in Karst Region is commonly used construction method.
机械冲孔桩是岩溶地区桩基施工常用的施工方法。
3
Aimed at current shortcomings of quality inspection method for complex punching parts, a new kind of detecting equipment for on-line quality inspection is proposed.