Why level sheet metals and sheet metal parts?

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Various causes create internal stresses and shape issues in sheet metal:

  • Residual stresses from the rolling mill
  • Mechanical and thermal cutting
  • Heat

Such defects and shape issues are problematic for subsequent processes.

What happens when unleveled sheet metal parts are processed?

Bending

Bending parts that are out of flat results in dimensionally inaccurate parts causing rework and scrap.

Welding

Welding preparation for out of flat parts is generally cumbersome and time consuming. Welding warped parts with the use of welding robots reduces process reliability and increases set-up and welding times, which leads to increased costs and additional problems with heat influences. Heat from welding releases stresses in parts causing additional problems with process reliability, re-work and scrap.