Whether it comes from a service center or an upstream process, most sheet or plate will contain residual stress, as seen in the first sample (left) — compared to same material (right) after processing in a parts leveler.
Parts leveling can't free you from the stress caused by a missed shipping date, but it can relieve the frustrations caused by metal loaded with internal stresses — stress that is released during welding, laser cutting, punching or bending. "The material coming from a service center has probably been leveled at some point, but most metals retain internal stresses and a degree of coil defects that make setup, processing or assembly difficult downstream," explained Nicholas ...
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