樓主: 寡澀苦湯
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鉆床孔距能達(dá)到正負(fù)30絲嗎 |
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點(diǎn)評(píng)
從機(jī)床、夾具,刀具三個(gè)方面入手,一般劃線的線粗,樣沖點(diǎn)眼誤差,鉆頭刃磨時(shí)主切削刃是否對(duì)稱,橫刃是否過大,鉆床主軸是否偏擺等都誤差可輕易的超出孔距的公差要求,這也就是鉗工怕打眼說法的來源。
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