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鉆頭加工參數(shù)和計(jì)算公式

 

N=轉(zhuǎn)速(rpm)                                                                                                                      

切削速度的大小通常會(huì)依照刀具與工件的材質(zhì)來(lái)決定，舉例來(lái)說(shuō)：直徑25mm的銑刀，欲切削普通材質(zhì)之鋼材，設(shè)定切削速度為200m/min，求其轉(zhuǎn)速？

N=(1000×200)/(π×25)                                                                                                        

N=2546 (rpm)

 

 

fz=每一刃之切削量(mm)                                                                                           

fz的大小取決於刀刃所能承受之負(fù)荷，以前一個(gè)例子來(lái)說(shuō)，銑刀的刀刃共有5刃，每一刃所能承受之*大切削量為0.5mm，如要發(fā)揮刀具之*大效率，則進(jìn)給F=2546×5×0.5                                                                                           

F=6365(mm)

 

F=進(jìn)給(mm/min)                                                                                   

切削深度Ap以及切削寬度Ae取決於刀具的切削能力。延續(xù)之前的範(fàn)例這時(shí)如果切削深度Ap=2 (mm)切削寬度用0.7×D來(lái)計(jì)算-0.7×25、Ae= 17.5 (mm)那麼移除率?                                                                                     

Q=2×17.5×6365/1000                                                                                              Q=222.775 (cm3/min)                                                                                           

如果總加工時(shí)間為60分鐘，那麼在這60分鐘裡所移除的切屑總共為

60×222.775=13366.5 (cm3)