Sheet Embossing Tool Life

Of course it depends on the shape and hardness of the die, the material being punched, if any surface coating or lubricant is used etc.

The only reliable data will be empirical from your own situation.

Some figure that is dreamed up by a statistitician or accountant is worthless.

If you are going to beat up the tooling supplier because the die doesn't last long enough, he will just quote a lower figure.

Manufacturers aren't willing to get beaten with a big stick, so you get the ludicrous situation where the quoted life for the brushes on a DC motor is 5000 hours when in reality it's about 10 times that in reasonable usage. I ran some for the quoted life on load and found they were just nicely bedded in.

Focus on the quality of what is being produced and reality, not a load of figures plucked out of thin air by someone who just wants to keep you happy.

There are tables of random numbers if you really insist on a number.

Sorry if this sounds harsh, but IMO life is being ruined by number crunching accountants.

Del

Measure the rate of wear on the die over a known number of punches and extrapolate from that.

Prison licence plates. Guard told him he gets out when the dies wear out.