大型模具一般先粗制毛坯，然后应力消除，再进行成形加工。
Lager dies are usually roughed out, then stress-relieved and finish-machined.
介绍了一种利用激光作为热源使金属板料在无模具下发生热塑性变形的新的成形加工方法。
A new forming process which can make sheet metals thermoplastic deformation without dies through the use of a laser as a heat source was described.
慢速走丝线切割加工技术在高精度模具制造、成形电极丝加工、难加工材料和精密复杂零件的加工中占有重要的地位。
LS-WEDM plays an important role in the field of high-precision mould manufacture, shaped tool machining, hard-machined material and the machine of precise complex part.
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