Selected articles from September 2007 issue published on TheFabricator.com:
The reality is that aluminum is not steel. It doesn't behave like steel, it doesn't flow like steel, and it certainly doesn't stretch like steel. So does this make aluminum hard to form? No, not if you think like aluminum.
A press maintenance program should be designed to minimize downtime, enhance machinery output, and establish a formal record keeping system for ongoing inspections.
By improving entry coil storage, coil inside diameter (ID) changes, slitter tooling changeover, scrap handling, and strip tensioning, you can slitting line efficiency.
During high-speed blanking, press stroking rate and punch speeds, are higher than in conventional blanking. As a result, the shear zone has a higher strain rate, which affects a workpiece's sheared surface temperature and the tool surface.
Springback is a fact of life for stampers, but knowing what causes it and how to deal with it— through stabilization, compensation, and verification—can help them overcome the problem.
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