车削是指车床加工是机械加工的一部份。车床加工主要用车刀对旋转的工件进行车削加工。车床主要用于加工轴、盘、套和其他具有回转表面的工件，是机械制造和修配工厂中使用最广的一类机床加工。
Turning refers to lathe processing, which is a part of machining. Lathe processing mainly uses turning tools to turn the rotating workpiece. Lathe is mainly used to process shaft, disc, sleeve and other workpieces with rotary surface. It is the most widely used machine tool in machinery manufacturing and repair factory.
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车削加工是在车床上利用工件相对于刀具旋转对工件进行切削加工的方法。车削加工的切削能主要由工件而不是刀具提供。车削是最基本、最常见的切削加工方法，在生产中占有十分重要的地位。车削适于加工回转表面，大部分具有回转型槽模具 一次性止血带 保定水处理设备 一次性止血带 保定空压机 北京真空泵表面的工件都可以用车削方法加工，如内外圆柱面、内外圆锥面、端面、沟槽、螺纹和回转成形面等，所用刀具主要是车刀。
Turning is a method of cutting workpiece by using workpiece relative to tool rotation on lathe. The cutting energy of turning is mainly provided by the workpiece rather than the tool. Turning is the most basic and common cutting methodplays a very important role in production. Turning is suitable for machining rotary surface. Most workpieces with rotary surface can be machined by turning method, such as inner and outer cylindrical surface, inner and outer conical surface, end face, groove, thread and rotary forming surface, etc.