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45#鋼調質后表面再鍍鉻后鉆頭打不動,請教 |
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點評
剛查資料調制鋼鍍鉻硬度在800HV以上,換算為HRC為64以上估計普通的合金鉆頭也不好加工,可以先把鍍層破壞掉再加工,我剛說的鉆頭不算太貴直徑10X140的38塊錢,孔精度不高,比銑刀便宜多了
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點評
正解
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