Cutting out inspection steps

[Tchuang]

Hello,

Currently the company I work at has a 100% inspection for the parts we plate. I was wondering what techniques or resources I should look into to find where I can save some time. I have been looking into CpK and AQLs. Please let me know if there are any resources or techniques you would recommend looking into. Thank you so much for your time.

Troy

 

[weldstan]

Whereas you have not stated what your 100% inspection consists of and reject percentage, it is difficult to provide any answers. One can always inspect on a % or lot basis. Are parts the same, from the same source or are they different and/or from multiple sources.

 

[Tchuang]

Sorry about that. We are inspecting plated needles that come from the same source. They get the OD measured, the length of the unplated area measured, the tips inspected, and we check to make sure the if the needles are clogged or not. The current rejection ranges from 5 to 15 % generally, sometimes it can be around 30-50% though. Thank you for your help!

 

[MintJulep]

You cannot improve quality by inspecting material as it arrives.

Not by 100% inspection, and certainly not by a lower sample size.

Focus your efforts on improving the quality of the manufacturing processes at the source.

 

[Tchuang]

Cool, I will think of what I can do to improve the manufacturing process, but I want to cut out steps in Final Inspection

 

[gtaw]

I like the approach; currently you know there is at least a 15% reject rate. So, you are subscribing to the fact you can tolerate the fact that you are assured 15% of the product ship is unacceptable. So why look for the crack if you don't want to know there's a crack?

I wonder if your customer will be satisfied?

Best regards - Al

 

[IRstuff]

You can live with a 15% rejection rate, but you can't tolerate the inspection? The 15% rejection rate amounts to nearly 18% cost burden on the good ones shipped, not counting the returns on the rejects that slipped through and got shipped.

TTFN (ta ta for now)
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