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Process FMEA for Welding and Laser Cutting

F

Flawed

#1
Guys,

I need to see an example if possible or even better a completed PFMEA for welding and laser cutting.

The cutting is mild steel 2mm~ 15mm cut on either a 3x1.5 or a 4x2 laser using oxygen not nitrogen.

The welding is TIG welding for the yellow goods market, small to heavy fabs.

Any other information requried?


Regards

Flawed
 
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Jim Wynne

Staff member
Admin
#2
Guys,

I need to see an example if possible or even better a completed PFMEA for welding and laser cutting.

The cutting is mild steel 2mm~ 15mm cut on either a 3x1.5 or a 4x2 laser using oxygen not nitrogen.

The welding is TIG welding for the yellow goods market, small to heavy fabs.

Any other information requried?


Regards

Flawed
Welcome to the Cove. :bigwave:

If you go all the way to the top of the screen, where you'll see this



click on "Post Attachments List" and you can do a search for PFMEA documents that have been shared here.

The only way to do a really effective PFMEA is to get the relevant people together and find out what the risks are for a given part. You shouldn't assume that someone else's document represents an effective risk analysis effort.
 
Q

qualityboi

#4
Seems like it wouldn't be too hard to put one together.
1. Sounds like 2 FMEAS, one for the weld process, one for the cut process
2. Use historical defect pareto's to determine a basic list of failure modes
3. Use your RMAs or reject criteria from down stream internal and external customers to determine the effects and severity, reserving 9 and 10 for internal and external safety on how defects in welds and cuts may affect the customer.
4. Use your incoming acceptance criteria for equipment and materials to build more failure modes, i.e., what happens if those specs are not met.
5. Recognize your process controls to check to see what fail modes they are supposed to catch and ensure alignment between those control and your listed failure modes.
6. An FMEA without a control plan is useless. So ensure your control plan is built along with it.

Seems straight foreword.
 
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