In press brakes, crowning compensates for frame deformation. Manage crowning by knowing your steel and employing robust estimating and forecasting software. One of the unavoidable side effects of press-brake operation is frame deformation. We're bending steel parts with other steel, that of the press brake, which for physical reasons will deflect. In particular, the ram will bow in the center (Fig. 1). At that point the punch will be farther away from the die, resulting in a wider angle and yielding a bent profile with a boat-like shape (Fig. 2). Even a small angle difference can turn metalforming into a process full of pitfalls.
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