A New Reversible Blanking-Piercing Method
Journal Title: RECENT - Year 2015, Vol 16, Issue 46
Abstract
Blanking and piercing by cold precision shearing is a modern process for obtaining metal parts with high geometric and dimensional precision and high quality of the cut surface. The parts processing is carried out with special dies which offer conditions for clean-cut, by eliminating rough cracks in the shearing zone. In the industrial practice more precision shearing methods exist and are applied. Of these, the perfected method to produce high precision parts is by reversible blanking-piercing. However, due to application difficulties – the dies require for operating triple action special presses - this method has not spread at industrial scale. The paper presents a new reversible blanking-piercing method which eliminates this disadvantage. The die built according to this principle can be operated by double action presses available in all cold pressing workshops.
Authors and Affiliations
Ion NEAGOE
Keywords
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