Recent new hire, new to SW (6 months), new to sheet metal.

Assumption: Top die/ punch tip radius = SW sheet metal parameters > bend radius

We currently break 18, 16, 14, 12, 11, and 7 gauge P&O Carbon Sheet, thats been burned on our hi-def plasma tables.

I have no precision measuring instruments yet, so I can't get accurate sizes on my top die or my finished part internal bend radius.

However, I do have a green translucent circle drawing template, and mark1 eyeballs.

My actual parts all seem to be 1/8 internal bend radius, while my top die could be anywhere from 3/32, 7/64, to 1/8.

Note: ALL sheet gauges are using the SAME top die/ punch.

So, while my Assumption is ruled by my head, I've got a gut check based on what i'm seeing on the actual parts.

Is my Assumption correct?

I want to be able to make my own bend tables but I need to understand this before I do that.

Thanks in advance for your help!

Pete