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開粗(cu)：在機(ji)床(chuang)的較大(da)(da)(da)負(fu)荷下，絕(jue)大(da)(da)(da)局部狀況應選用(yong)盡能(neng)夠(gou)大(da)(da)(da)的刀(dao)(dao)(dao)，盡能(neng)夠(gou)大(da)(da)(da)的的進刀(dao)(dao)(dao)量，盡能(neng)夠(gou)快的進給。在同一(yi)把刀(dao)(dao)(dao)的狀況下，進給與進刀(dao)(dao)(dao)量成正比。普通狀況下，機(ji)床(chuang)的負(fu)荷不是成績，選刀(dao)(dao)(dao)的準(zhun)繩(sheng)次要依商品的二維角(jiao)與三維弧能(neng)否(fou)過小來(lai)思索。選好(hao)刀(dao)(dao)(dao)后，便定刀(dao)(dao)(dao)長(chang)，準(zhun)繩(sheng)是刀(dao)(dao)(dao)長(chang)大(da)(da)(da)于加工(gong)深度，大(da)(da)(da)工(gong)件(jian)則要思索

 數控(kong)車床(chuang)件(jian)(jian)(jian)(jian)(jian)加工(gong)的重(zhong)復(fu)性投(tou)產的零件(jian)(jian)(jian)(jian)(jian)：使(shi)用數控(kong)磨床(chuang)的工(gong)序(xu)準(zhun)備工(gong)時(shi)占有較高的比(bi)例，例如 工(gong)藝分析準(zhun)備、編制程(cheng)序(xu)、零件(jian)(jian)(jian)(jian)(jian)首件(jian)(jian)(jian)(jian)(jian)調整試切等，這(zhe)些綜合工(gong)時(shi)的總和往往是(shi)零件(jian)(jian)(jian)(jian)(jian)單件(jian)(jian)(jian)(jian)(jian)加工(gong)工(gong)時(shi)的幾十倍(bei)(bei)到上百倍(bei)(bei)，但這(zhe)些數控(kong)車床(chuang)工(gong)作內容都(dou)可以(yi)保存起來反(fan)復(fu)使(shi)用，所以(yi)一種(zhong)零件(jian)(jian)(jian)(jian)(jian)在數控(kong)磨床(chuang)上試制成功再重(zhong)復(fu)投(tou)產時(shi)