硬质合金可转位刀片GB2081-80的公布(以下简称国标),将使铣削刀具迅速得到推广使用。从国标内容看,硬质合金可转位刀片都要刃磨上、下平面和各周边,其中周边磨削是关键。在磨削铣刀片时,发现国标附录C中规定的刀片毛坯尺寸不合理。本文试通过磨削精度的分析,对这种不合理性进行讨论。一、磨削硬质合金可转位刀片的精度分析 Carbide indexable inserts GB2081-80 announced (hereinafter referred to as the national standard), will enable milling tools quickly be promoted. From the national standard content, cemented carbide indexable inserts must be sharpened upper and lower plane and the periphery, of which the surrounding grinding is the key. Grinding milling cutter, found GB Appendix C in the provisions of the blade blank size unreasonable. In this paper, through the analysis of grinding accuracy, this irrationality is discussed. First, the precision grinding carbide indexable inserts