The steps for punching and extruding the splined hole can be finished by a special die which is designed by the invention by a press.
冲挤花键孔的步骤可采用本发明所设计的专用模具在压床下完成。
This paper analysizes a variety of reasons and introduces the settlement of the garbage in punching small hole from the die, the material and the equipment.
分析了冲小孔废料堵塞的各种原因，从模具、材料，设备三方面介绍了解决冲小孔废料堵塞的方法。
This die success application, develope the core pipe punching hole processing scope.
该模具的成功应用，拓展了有芯管子冲孔的加工工艺范围。
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