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冷軋鋼板有一個特性，那就是他的彈性形變和焊接時高溫產生的應力集中導致的塑性形變，Spcc在這方面也是可圈可點的，我們都知道熱刺里的時候，

材料是會產生一些應力，并且這些硬你會使零件產生一定范圍內的塑性形變，通常精加工大多數是在熱刺里之后，

也是為了降低應力對零件精度的影響。但是spcc在零件的焊接過程中，產生的塑性形變是非常有限，當然這跟熱處理產生的形變完全不是一個檔次，

而且通常用來做鈑金焊接的這個公差，從國標的定義上來看，也是比較寬松的，也就是說，加工可以做到精加工的，但焊接是做不到精度焊接的。

Cold rolled steel plate has a characteristic, that is his elastic deformation and welding high temperature stress concentration caused by plastic deformation,

Spcc is commendable in this respect, we all know that spurs, the material will produce some stress,

and these hard you will make parts within a certain range of plastic deformation, usually finishing most is in the spurs,

but also to reduce the impact of stress on the accuracy of parts.But spcc in the process of welding parts, plastic deformation is very limited, of course,

this with heat treatment deformation is not a grade, and usually used to do sheet metal welding this tolerance, from the definition of national standard,

is relatively loose, that is to say, processing can do finishing, but welding is not do precision welding.