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本文所介绍的挤压丝锥在结构上采用端面铲磨,配上合适的冷却润滑液,减少攻丝抗力,使挤压丝锥在黑色金属和特种难加工材料上进行高精度螺纹加工的问题有所突破。
The extrusion tap described in this paper adopts the structure of end face shovel, coupled with the appropriate cooling lubricant to reduce the tapping resistance, extrusion tap in black metal and special difficult to machine materials for high-precision thread processing problems breakthrough.