AnsweredAssumed Answered

Tech ? about real world bend rad vs. SW bend rad.

Question asked by Pete Peters on Aug 21, 2012
Latest reply on Aug 21, 2012 by Bernie Daraz

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!