【单选题】【消耗次数：1】
（ ）是对热处理后的齿轮进行精整加工的方法。
①
珩齿
②
磨齿
③
剃齿
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相关题目
【单选题】
用范成法加工出的齿廓是刀具齿刃的共轭齿廓，被加工的齿轮与刀具的模数、压力角（ )长度，故用同一把刀具可切制出各种齿数的齿轮，精度较高（可加工8级或8级以上精度的齿轮）
①
不等
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相同
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