一种镗挤复合刀具的设计

A Design of Boring-Extruding Compound Tool

镗挤复合刀具可有效实现先镗后挤压,使两道工序复合成一道工序完成,节约了人力、物力,减少了加工工序;另外,先加工小孔,加工大孔时再以小孔作导向,能保证良好的同轴度。

This compound tool can realize ＂Boring First, Extruding Second＂, combing the two process steps into one. Therefore, manpower, material resources and the process steps are reduced; What＇ s more, machining first small holes and then taking the machined small holes as the guide when machining large holes can ensure a good axiality.