GM GP12 - Indicate containment stations on the Process Flow Diagram?

Manix

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#1
Hi All,

Having grasped GP12 and what it all means, can anyone advise on whether it is standard practice to indicate the containment stations on the Process Flow Diagram?

I am implementing GP 12 and need to know if these stations should be on the documentation?

If it is on the Process flow it will be an individual step on the control plan! Is this acceptable?

Can anyone who has used this procedure tell me if they included it on the process docs?
 
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Jim Wynne

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#2
Manix said:
Hi All,

Having grasped GP12 and what it all means, can anyone advise on whether it is standard practice to indicate the containment stations on the Process Flow Diagram?

I am implementing GP 12 and need to know if these stations should be on the documentation?

If it is on the Process flow it will be an individual step on the control plan! Is this acceptable?

Can anyone who has used this procedure tell me if they included it on the process docs?
GM expects that there will be a GP12 control plan. I don't recall whether the PFD is expected to be specific to GP12, but it makes sense to make it so. The flow diagram, PFMEA and control plan should always form a linked chain, so your PFMEA should also reflect the GP12 activity.
 
B

Bill Ryan - 2007

#3
I have the areas called out on all our "GP-12" documents (including PFMEA) submitted to any of my customers requiring the procedure - if for no other reason than to not have to explain anything. It's fairly simple (in my software) to modify them for the Production process.
 

Manix

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#4
Thanks guys,

I think I will include the stations for the simple reason Bill gave, not having to explain or prove anything to the customer!

It can do no harm to have thes on there, except having to take them off when you exit GP12! However this is not too much hassle!

:thanks:
 

Jim Wynne

Staff member
Admin
#5
Manix said:
Thanks guys,

I think I will include the stations for the simple reason Bill gave, not having to explain or prove anything to the customer!

It can do no harm to have thes on there, except having to take them off when you exit GP12! However this is not too much hassle!

:thanks:
It might be easier to create two versions to begin with, and keep the GP12 documents as records when you exit GP-12.
 

bpritts

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#6
I will echo JSW05's suggestion. When we do a launch, we'll do a separate
GP12 control plan that includes just the added GP12 inspections, then once exiting GP12 just drop the extra piece.

To be honest, though, I realize after considering your question that we
haven't included the GP12 on the PFD. :eek:

Brad Pritts
 
D

Daisy.wang

#7
hi, i'm the first time here, very glad to see you all
now ,i have a question about
GP12,( safe launch phase):
when we make a EPC which concerns increased frequency and sample size of inspection,i want to know if we should change the FMEA, and WI for compliance with EPC?,or we dont need to change the FMEA/WI, just as and when get the customer's approval, keep the record of EPC, direct using the FMEA/WI/CP of production?

looking forward to receive your feed back

thank millions
 

Manix

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#8
hi, i'm the first time here, very glad to see you all
now ,i have a question about
GP12,( safe launch phase):
when we make a EPC which concerns increased frequency and sample size of inspection,i want to know if we should change the FMEA, and WI for compliance with EPC?,or we don't need to change the FMEA/WI, just as and when get the customer's approval, keep the record of EPC, direct using the FMEA/WI/CP of production?

looking forward to receive your feed back

thank millions
HI Daisy and welcome to the cove.

In in the generic sense the FMEA is something that documents the potential failures within your process and these should be the same whether you are under GP12 or not under GP12. HOWEVER, whenever I have been under GP12 I have always included the GP12 inspection stations on the Process Flow (as something that goes off line as all GP12 stations should be off line) and thus on the PFMEA I have dealt with potential failures at these stations. So in essence I suppose I have a separate set of GP12 documents including the PCP.

However the only change I see necessary to the WI's would be a detailed set should be included on the GP12 inspection station. I can't see how any other WI's would be required.

I think it would again be whether your customer wants to see GP12 stations on ALL of the process documents or not. Though I would always document steps in the process that would ultimately effect the level of Correct parts that reach the customer.
 
D

Daisy.wang

#9
Hi , Manix
really appreciated for your quick response
i agree we can do as what the customer's requirment
but i am customer for the suppliersand
i have to make myself more clear, so i can train or ask the supplier to do as our requirment
ok, could you help me to clarify the following question:
1.the GP12 is the same as pre-production CP?
2.The early production containment CP need made before ppap? Delphi ask the supplier to submit the EPC to them.
3. In my opinon, if the process is in stable ,CPK is more than 1.67, we can uniform the EPC CP and production cp?

thanks again
 
B

Bill Ryan - 2007

#10
Welcome to the Cove Daisy :bigwave:

1) Yes - GP-12 is the procedure that descibes the Pre-launch Control Plan

2) Yes - The Pre-launch Control Plan (part of Delphi's Early Production Containment (EPC)) needs to be developed before the PPAP run.

3) Typically, No. At the time of PPAP, you have probably not run enough product to encompass all the special/assignable causes your process may exhibit. The "extra" controls in the Pre-launch Control Plan (larger sample size or increased frequency) should really stay in place long enough to show a "longer term" capability.

Hope that helps.
 
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