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范成误差是老机标JB179—60《圆柱齿轮传动公差》中采用的评定齿轮切向加工误差的一个指标,这个指标在新机标JB179—83《渐开线圆柱齿轮精度》中已被取消。作者在[1]〔2〕中论述了范成误差比公法线长度变动的优越性,提出了几种测
Fan Cheng error is the old machine standard JB179-60 “cylindrical gear drive tolerance” used in the assessment of gear tangential machining error an indicator of this indicator in the new machine standard JB179-83 “involute cylindrical gear accuracy” has been canceled . In [1] [2], the author discusses the superiority of the error of range-to-error ratio to the change of the length of common normal and proposes several measures