缸体喷油嘴面铣削刀具频繁出现崩刀断刀的原因分析和解决思路

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摘 要：针对缸体喷油嘴面铣削刀具频繁崩刀断刀的问题，结合加工工艺，分析了可能导致该问题发生的多种因素，最终找到毛坯余量、刀具加工路径、刀具结构设计三个方面的影响因素，并针对这三个影响因素减小加工余量、更改加工路径、扩大刀具容屑槽等措施，解决了崩刀断刀问题。

关键词：崩刀 刀具结构设计 容屑槽 毛坯余量 喷油嘴

Cause Analysis and Solution Ideas for Frequent Chipping and Breaking of the Milling Tool on the Face of the Cylinder Block Fuel Injector

Wu Ling

Abstract：Aiming at the problem of frequent chipping and breaking of the milling tool on the face of the cylinder injector， combined with the processing technology， the factors that may lead to the occurrence of the problem are analyzed， and finally three factors including the blank allowance， the tool processing path and the tool structure design are found. In view of the three influencing factors， reducing the machining allowance， changing the machining path， and expanding the tool chip flute and other measures， the problem of chipping and tool breakage has been solved.

Key words：chipping， tool structure design， chip flute， blank allowance， fuel injector

1 引言

增压发动机活塞的热负荷很高，主要通过活塞冷却喷油嘴进行喷油冷却。（剩余3538字）