Lubrication is of two main types: The Fluid and The Boundary. Fluid lubrication – This type of lubrication commonly used in bearing system and seldom observed in sheet metal forming. Boundary lubrication is commonly used in most metal forming operation because of the high pressures and low speeds involved. The main function of a boundary...
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In a progressive die, shaving is a secondary process to shear a previously cut edge to produce a smooth and straight edge with minimum breakaway. This metal stamping process usually applies on highly precision dies with precision clearances; the finished quality is comparable to or better than fine blanking. In the shaving operation, the amount of material being...
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Somewhere last year, we had a simple progressive tool designed by one of our junior designers. It’s a very simple “U” bracket, 0.8 mm thick cold roll steel with both sides bent up to 1.6mm height. No one really paid attention to it just because this item is too simple to draw any attention...
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