11 切削刀具材料選擇因素,應廣泛考量各方面優缺點,但不包含以下那一個選項?
(A)熱硬度(hot hardness)
(B)韌性及衝擊強度(toughness and impact strength)
(C)熱衝擊抵抗(thermal shock resistance)
(D)冷加工強度(cold working strength)
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統計: A(32), B(52), C(146), D(976), E(0) #2018613
統計: A(32), B(52), C(146), D(976), E(0) #2018613