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钻头加工参数和计算公式

日期:2024-11-22 15:11
浏览次数:17876
摘要:

DM之各系列钻头对应加工材料和建议参数(钻头加工参数和计算公式)




钻头加工参数和计算公式
 
Vc(进刀速度)=(π×D×N转数)/1000   N=(1000×Vc)/(π×D)                                                                             
Vc=切削速度(m/min)
D=刀具直徑(mm) 
N=轉速(rpm)                                                                                                                      
切削速度的大小通常會依照刀具與工件的材質來決定,舉例來說:直徑25mm的銑刀,欲切削普通材質之鋼材,設定切削速度為200m/min,求其轉速?
N=(1000×200)/(π×25)                                                                                                        
N=2546 (rpm)
 
 
F=N×Z×fz                                                                                                                 
F=進給(mm/min)    
N=轉速(rpm)    
Z=刀刃刃數   
fz=每一刃之切削量(mm)                                                                                           
fz的大小取決於刀刃所能承受之負荷,以前一個例子來說,銑刀的刀刃共有5刃,每一刃所能承受之*大切削量為0.5mm,如要發揮刀具之*大效率,則進給F=2546×5×0.5                                                                                           
F=6365(mm)
 
Q=(Ap×Ae×F)/1000                                                                              
Q=移除率(cm3/min)                                                                           
Ap=切削深度(mm)                                                                             
Ae=切削寬度(mm)                                                                                
F=進給(mm/min)                                                                                   
切削深度Ap以及切削寬度Ae取決於刀具的切削能力。延續之前的範例這時如果切削深度Ap=2 (mm)切削寬度用0.7×D來計算-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)

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