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炮筒是如何加工的 |
點評
對于3D打印,我一直有個疑問:1,最終成品是毛坯還是已經精加工件?2,完成零件的加工無非就是銑、車、磨、鉆這些基本的工序,這么說來,3D打印機葉不了這些吧?既然這樣,那也得換刀,跟加工中心有何區別呢?
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