10139| 14
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想知道8.2的孔在熱處理后變形如何?是變大還是變小,變形量有多大? |
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點(diǎn)評(píng)
那個(gè)老師教的,熱處理了來鉆孔,拿啥子鉆??電火花打嗎?要滲碳淬火呢!你說的是燒結(jié)吧,這個(gè)產(chǎn)品要求是燒結(jié)之后還要滲碳淬火,大哥!!!!
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