To part mark, or not to part mark
To part mark, or not to part mark
(OP)
I'm not sure if this is the best forum to pose this question, but since it does impact a note on a drawing I'll ask it here.
The company that I am at now is not accustomed to having sheet metal parts physically marked by any methods. I am from a background of commercial, semiconductor, and aerospace. In my experience, we part marked all of our parts either by bag and tag, peen, rubber stamp, engraving, roll marking, etc. I would like to have the parts manufactured for us to be identified by either rubber stamp, or bag and tag, but I am getting a little bit of resistance from others. I believe it is because it is something new to them.
I see the benefits of having a part marked being traceablity and part identification during assembly. Recently we had to similar enclosures going through assembly at the same time, and they were being used on the wrong builds. There was no part marking for easy identification.
What other pros are there to part marking, and what are the cons? What are you guys doing?
Thanks
The company that I am at now is not accustomed to having sheet metal parts physically marked by any methods. I am from a background of commercial, semiconductor, and aerospace. In my experience, we part marked all of our parts either by bag and tag, peen, rubber stamp, engraving, roll marking, etc. I would like to have the parts manufactured for us to be identified by either rubber stamp, or bag and tag, but I am getting a little bit of resistance from others. I believe it is because it is something new to them.
I see the benefits of having a part marked being traceablity and part identification during assembly. Recently we had to similar enclosures going through assembly at the same time, and they were being used on the wrong builds. There was no part marking for easy identification.
What other pros are there to part marking, and what are the cons? What are you guys doing?
Thanks





RE: To part mark, or not to part mark
I am drawing up a bunch of gaskets that look very similar to each other. A note on the drawing requiring part numbers be marked on the gaskets is one of several solutions that will prevent confusion at assembly time. I have in the past, added holes and chamfers to stuff as identification marks.
In general, I would say that marking part numbers is manufacturing's decision. If your parts look unique, and they are stored in numbered part bins, the numbers may not be necessary. Does your warehouse have have access to your drawings? You might not want ink or epoxy markings on your parts, and you might not want them stamped.
Read up on Poka Yoke.
--
JHG
RE: To part mark, or not to part mark
RE: To part mark, or not to part mark
Chris, CSWP
SolidWorks '16
ctophers home
SolidWorks Legion
RE: To part mark, or not to part mark
Is that experience not a sufficient justification all by itself?
At least scribble a number on with a Sharpie.
Mike Halloran
Pembroke Pines, FL, USA
RE: To part mark, or not to part mark
The least expensive method for us is marking with our combination laser and punching machine.
Diego
RE: To part mark, or not to part mark
Proud Member of the Reality-Based Community..
To the Toolmaker, your nice little cartoon drawing of your glass looks cool, but your solid model sucks. Do you want me to fix it, or are you going to take all week to get it back to me so I can get some work done?
RE: To part mark, or not to part mark
What is Engineering anyway: FAQ1088-1484: In layman terms, what is "engineering"?
RE: To part mark, or not to part mark
Sorry, memory fails me at the moment to give the actual specification number.
--Scott
www.wertel.pro
RE: To part mark, or not to part mark
Black marker will come off if cleaned with chemicals, or eventually fade.
Besides all methods, my suggestion is to (2D or text) laser mark or engrave, even if additional marking.
Chris, CSWP
SolidWorks '16
ctophers home
SolidWorks Legion
RE: To part mark, or not to part mark
RE: To part mark, or not to part mark
For aerospace/military, they have to get marked somehow.
Chris, CSWP
SolidWorks '16
ctophers home
SolidWorks Legion
RE: To part mark, or not to part mark
If traceability is a concern for some reason then yes you need a more robust system.
What is Engineering anyway: FAQ1088-1484: In layman terms, what is "engineering"?