Theory of hole punching


SKU: 1-929513-45 Categories: , Tags: , , ,


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In this DVD the Theory of Hole Punching we learn about tool selection; clearances and correct profiles or grind. The various phases in the punching process and the effects of clearance on burring. 

We discuss how to calculate the tonnage requirements and the basics of G and M coding. Also covered: galling, basic program review, forming tools, general maintenance and best practices for metal punching.

NTSC 45, Run time 37:20 


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