Punching Copper Sheet

The diameter of the hole on the top side of the metal sheet is created by the punch and will be the same diameter as the punch diameter.

Punching copper sheet. This rubbing creates more friction and heat increasing the chances for galling. You can tell from the marks on the sample that i had a hard time trying to get a punch to work with this thickness. It is still quite pliable but to punch it requires quite a bit of pressure. Approved sheet metal has punch forming capabilities in house so you can get sheet metal parts fast.

This tends to equalize the sheet stretching of both halves. Punching sheet metal parts. When punching a round hole the hole naturally collapses slightly after the punch tip penetrates the sheet. Alternatively if a sheet has symmetrical hole patterns you may be able to punch half the sheet flip it over then punch the other half.

Custom sizing and designs is our specialty. A straight punch can rub against the workpiece material throughout the stroke. Country accents is the major source of artistic hand punched tin copper and brass since 1979 offering designs from the popular folk art pierced tin to historically accurate re creations of traditional punched and pierced tin panels as in the old shaker style furniture pie safes jelly cupboards and more. Once it contacts the sheet metal surface it senses the resistance and drives the punch downward with enough force to penetrate the material.

I had to step on it to get the punch to work you can still use a pair of scissors to cut it. Back taper can help here.