The deformation size is in direct proportional to the shape complexity,
the length-width ratio and thickness of the wall. At the same time, in
proportional to the rigidity and stability of material, too. Therefore,
it is important to reduce the impact of these factors on the parts when
designing, especially the large part need to be make the structure
reasonable. Besides, it is necessary to strictly control the blank
hardness, slagking and other problems to reduce the deformation.