How to distribute general assembly profile tolerance to component parts
How to distribute general assembly profile tolerance to component parts
(OP)
I need someone to enlighten me on this:
I have a welding assembly with 5 sheet metal brackets welded to a main body, if I have a general profile tolerance 2.0 mm on the final assembly, how can I distribute this tolerance to those 5 brackets more precisely? I have no problem to define the FCF on the welding surface of each bracket with profile to local datum and refinement but wonder if there's any formula to calculate the tolerance zone more accurately, without using any special software? Those 5 brackets are independent of each other so there's tolerance stack only between each bracket to the main body.
If anyone can point me to some resources, I will really appreciate that.
I have a welding assembly with 5 sheet metal brackets welded to a main body, if I have a general profile tolerance 2.0 mm on the final assembly, how can I distribute this tolerance to those 5 brackets more precisely? I have no problem to define the FCF on the welding surface of each bracket with profile to local datum and refinement but wonder if there's any formula to calculate the tolerance zone more accurately, without using any special software? Those 5 brackets are independent of each other so there's tolerance stack only between each bracket to the main body.
If anyone can point me to some resources, I will really appreciate that.





RE: How to distribute general assembly profile tolerance to component parts
Are you preparing the drawings or fabricating the parts?
If you are designing and documenting this thing, you should put the profile tolerance on the final, welded face, and let the welder figure it out.
I understand that a 2mm profile is rather tight for welding. I would not design the individual pieces with locating features. I would allow the welder the jig them in place and grind a bit, to meet your tolerance.
--
JHG
RE: How to distribute general assembly profile tolerance to component parts
Jim Sykes, P.Eng, GDTP-S
Profile Services www.profileservices.ca
TecEase, Inc. www.tec-ease.com
RE: How to distribute general assembly profile tolerance to component parts
RE: How to distribute general assembly profile tolerance to component parts
RE: How to distribute general assembly profile tolerance to component parts
RE: How to distribute general assembly profile tolerance to component parts
Jim Sykes, P.Eng, GDTP-S
Profile Services www.profileservices.ca
TecEase, Inc. www.tec-ease.com
RE: How to distribute general assembly profile tolerance to component parts