jimmccafferty
Starting to get Involved
Hi everyone,
I have been asked to find out if the process of putting in the holes on one of our parts is capable. This part has 810 (that’s right 810) 0.030” +/-0.002” holes in it. These holes are put in with a laser and the customer want to know if it is a capable process. I’m being told that when this job started we sent 10 parts out and had the holes checked for diameter and location and all was good, but now no-one can find the reports.
We have the hole locations as “Program Controlled”, and we do random go/nogo checks for the diameter. Now the customer wants to know if the hole diameter is capable. What do I do?
We have decided to use the go/nogo gage and check 10 parts. 810 holes X 10 parts = 8100 holes. Ok now what. I’ve been reading a lot about np-charts but I’m not sure. Also, I have been reading about defect rates and simulated cpk values. What is the best approach to this?
Thanks,
Jim
I have been asked to find out if the process of putting in the holes on one of our parts is capable. This part has 810 (that’s right 810) 0.030” +/-0.002” holes in it. These holes are put in with a laser and the customer want to know if it is a capable process. I’m being told that when this job started we sent 10 parts out and had the holes checked for diameter and location and all was good, but now no-one can find the reports.
We have the hole locations as “Program Controlled”, and we do random go/nogo checks for the diameter. Now the customer wants to know if the hole diameter is capable. What do I do?
We have decided to use the go/nogo gage and check 10 parts. 810 holes X 10 parts = 8100 holes. Ok now what. I’ve been reading a lot about np-charts but I’m not sure. Also, I have been reading about defect rates and simulated cpk values. What is the best approach to this?
Thanks,
Jim