9834| 6
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螺紋加工工藝安排在熱處理前還是之后? |
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點(diǎn)評
不可盡信書啊,您說的精研是不是拿板牙回絲的那種?
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點(diǎn)評
這樣就有合理性了,是一個帶輪軸上面螺紋;
要是熱處理后變形,還可以再車床上回絲?
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