DPD Verification

[StJudas]

I'm current engaging in the fun process of writing a DPD QM to comply with Boeing D6-51991, Spirit MAA1-10009-1, etc. I'm doing this for a start up company, and I'm trying to avoid excessive cost for this process while still ensuring complete compliance. Where this becomes a bit of an issue is with Derivative verification software. At this point I know I could purchase an add-on for Verisurf to perform this or purchase CompareVidea. Are there any other software options out there I could explore for this?

One thing that I thought of, and assume would not fly, would be bringing the derivative files back into the native software and performing a manual comparison?

Any software suggestions or advice one way or another would be appreciated...

Mold Design: Pro Engineer
Product Design: Solidworks
Aircraft Tooling: Catia V5

 

[HGMorgan]

Hello,
We use Back Check, Cross Check, and Day to Day process validation.
These checks use the software that you have, so, no additional software or costs.
It can also be automated thru programming or macros to reduce time.
We have been approved to the Spec's stated for years.

1st: Create a model of an artifact with all the features that will be involved.
Normally a rectangular block with holes (90 & angled), planes (90 & angled) and some 3D contour.
Our Certification Service uses a CMM Artifact to certify our CMM.
I created a model in CATIA V5 of the CMM Artifact and we use that.

Back Check: Output the model in translation format you use, I.E.: IGES, Step, etc. (I will call-out IGES in this explanation)
Read the IGES model back into the software used to create the IGES file and compare to the original model. Our procedure states that it must check back to with-in .0005. This is done with all of the CAD/CAM/CMS systems you use. This is done at initial Software install, and at each Software revision. Document the check and results. Note: Back Check identifies any software or translation settings issues.

Cross Check: The CAD IGES is read into the CAM (& CMS) software. The file is compared to the original and must check with-in .0005
This is done at initial Software install, and at each Software revision. Document the check and results. Note: Cross Check indentifies any translation issues.

Day to Day process validation:
CAD IGES is used by CAM to program CNC. CAD CMM IGES (a different IGES files for CMM) is used by CMM to inspect product.
Any deviations outside of tolerance are analyzed to determine cause. Secondary checks are performed using in-house standards.





Harold G. Morgan
CATIA, QA, CNC & CMM Programmer