中文摘要：

以滑座零件内孔中三维余弦曲线槽加工为例,介绍了加工中应用的机床、附件、工装和宏程序。通过采用附加第四轴和角度头,拓展了三轴加工中心的加工范围。

英文摘要：

As an example of the machining of inner-hole three-dimensional cosine curve of the slide part, the article discusses the problem of the application of machine tools, accessories, tooling and macro programs, through adding the fourth axis and angle-head ,we develop the machining range of three-axis machining centers.