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求助關(guān)于深孔擴(kuò)孔問(wèn)題 |
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點(diǎn)評(píng)
刀具應(yīng)該沒(méi)問(wèn)題,,應(yīng)該是切削用量選擇不合理,,0.3、0.5進(jìn)給量過(guò)大(0.05-0.15r/min為宜),,切進(jìn)切出時(shí)易打刀,。不能追求效率而忽視切削用量的合理性,。為了保證加工效率,,建議采用機(jī)夾擴(kuò)刀,偏角75°,以便提高切削速..
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