硬度越低，可塑性越好，越不容易斷。
不錯，硬度越低越不斷！
回答: 該半軸的熱處理沒控製好造成最大應力麵斷裂.製造商該賠償損失...回複：Where is government action?
由 fixanycars
於 2009-08-19 14:42:55
所有跟帖：
•
扭矩,彎拒,剪力再加衝擊力聯合作用.你當是彎鉛呢...回複：不錯，硬度越低越不斷！
-fixanycars-
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08/19/2009 postreply
19:28:39
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