关键词: 成形范成法；加工原理误差；ELID球面磨削；硬质合金

Abstract:

This paper described principles, requirements and motion law of generating method which was used to generate spherical surface. Spherical grinding error analysis is mainly about influence of geometric precision of machine on precision of graund parts, the influences of vertical, horizontal and angle on the spherical degree errors were researched respectively, and the specific calculation formulas were deduced. The homogeneity of grinding process was analyzed, the steering and speed ratio of the wheel and work piece are the main factor influencing grinding homogeneity. The experimental study used the workpiece material to do ELID(electrolytic in-process dressing) grinding expriment of the electrode. Preliminary result confirms that the experiment is an effective way of the carbide spherical ultra-precision grinding.

Key words: generating method, theoretical error, ELID spherical grinding, carbide material