22. 欲在車床上以碳化鎢刀具切削直徑60 mm之黃銅棒,經查表得知切削速度應在
200~300 m/min之間,則車床主軸轉速應為若干?
(A)1061~1592 rpm
(B)1.061~1.592 rpm
(C)61~592 rpm
(D)2161~3159 rpm
答案:登入後查看
統計: A(186), B(29), C(32), D(14), E(0) #2683236
統計: A(186), B(29), C(32), D(14), E(0) #2683236