合理的工艺筋可有效降低铸件的残余应力。
Process bars can effectively reduce residue stress in casting.
覆盖件拉延工艺的设计一般包括以下内容：翻边展开、拉深方向选择、坯料估算、工艺补充面的搭建、压料面的添加以及拉深筋的布置等等。
The design of auto-body forming process commonly includes edge un-wrapping, choice of drawing direction, roughcast reckoning, design of addendum, adding the binder surface and setting the draw bead.
提出的采用活动式立筋板焊接操作工艺不仅可以防止焊接变形，而且明显提高工效。
Adopting movable vertical rib plate welding process can not only prevent welding deformation but also enhance working efficiency evidently.
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