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。
The present invention provides on-line cold bent steel secondary punch mold and punching method, 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。
The present invention provides on-line cold bent steel secondary punch mold and punching method, and belongs to the field of plastic forming technology for metal.
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