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ÕæÇ¿±ØÊ¤: ½ð±Ò+2, good 2014-07-29 11:54:27
huangguaha: ½ð±Ò+200, ·­ÒëEPI+1, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸, ·Ç³£¸Ðл~~ 2014-07-29 15:04:19
First, center hole machining on the scaled raw tube billet is with a centering hole drilling machine, then scalping machining is with a short scale scalping machine, consequently it becomes a bright billet. All the bright tube billets are sent to section machining across the flat wagon and crane. Section machining includes section milling and outer chamfering and rounding. Besides, these face machining should meet not only the requirement of extruding process, but also the requirement of face seal. After single end-face processing, these tube billets are lifted for the deep hole drilling. Hole¡¯s size and quality should meet the requirements of extruding process for billet. After that, the other end-face is machined, it includes section milling, and inner hole should be conical-mouthed machining, for meeting the requirement of expanding and extruding process.
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