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前言近年来因市场竞争激烈及船东订货要求不同的原因,几乎每年开发的船用柴油机型不少于2种。而机座、机架、气缸体等大型箱体类零件,结构复杂、工艺难度大。更由于数控工艺文件的编制必须细化到工步,一般而言约需花费半个月左右的时间才能完成一个零件的工艺编制工作,然后再编制数控加工程序,且不允许出错。整个技术准备工作的周期很长,工艺人员大部分时间都消耗在
Foreword In recent years due to fierce market competition and shipowners ordering different reasons, almost every year the development of marine diesel no less than two types. The chassis, rack, cylinder body and other large parts of the box, the structure is complex, difficult process. In addition, it takes about half a month or so for the process of compiling a part to be completed, and then the CNC machining program is compiled and no error is permitted. The entire technical preparation work cycle is very long, the craft staff spent most of the time