| 摘要 |
<p>The invention relates to a method of forming a sheet metal component, the method comprising; forming a profiled blank from a metal sheet 110, identifying on the blanks surface wrinkle lines 130 across which buckling stress exceeds a critical buckling stress limit and may produce wrinkles of excess metal, cutting slots 220 through the entire thickness of the blank so that each slot is coincident with a wrinkle line, processing the profiled blank in a pressing operation to form a shaped blank (figure 5) and then performing a welding operation along the slots to produce a finished sheet metal component. Additionally holes 240 may be cut at the ends of the slots with a diameter greater than the lateral width of the slot. The slots may also have a tapering width along their length.</p> |
