PLM Quality Management (QM), Manufacturing, SAP Process Control

GD&T in SAP (Geometrical Dimensioning and Tolerancing for Results Recording)

GD&T in SAP

Here is how to get GD&T out of SAP

Starting within an Operation, whether it is in a Routing or an Inspection Plan, create the Basic dimensions and then create the GD&T control frame features. Once complete, test your solution and provide to the customer.

For this example, the Basics are ballooned features 1, 2, 4 & 5 and the Control Frame ballooned features 3 & 6.

PLM Quality Management (QM), Manufacturing, SAP Process Control

1. Create the first Basic Characteristic; Set as Quantitative and maintain the Control Indicators.

PLM Quality Management (QM), Manufacturing, SAP Process Control

PLM Quality Management (QM), Manufacturing, SAP Process Control

PLM Quality Management (QM), Manufacturing, SAP Process Control

(“Defects Recording” not activated since Basic dimensions are theoretically exact and cannot be rejected)

2. Enter the Target value, UoM, and Decimal places.

PLM Quality Management (QM), Manufacturing, SAP Process Control

3. Enter Sample Procedure, UoM and Base Qty.

PLM Quality Management (QM), Manufacturing, SAP Process Control

4. Repeat 1-3 for other basic dimension.
5. Create the Control Frame Characteristic; Set as Quantitative and maintain the Control Indicators.

PLM Quality Management (QM), Manufacturing, SAP Process Control

(Select “Cal. Charac.” to enable GD&T Calculations)

PLM Quality Management (QM), Manufacturing, SAP Process Control

PLM Quality Management (QM), Manufacturing, SAP Process Control

6. Enter the Target value, UoM, and Decimal places.

PLM Quality Management (QM), Manufacturing, SAP Process Control

7. Calculate the Control Frame as a Formula. Use the Hot Key to view a list of variable formula parameters to use.

  • On paper this calculation would look like ~ 2 √ ((Deviation of first Basic)2+(Deviation of second Basic)2)
  • In SAP this calculation would look like = 2*(SQRT(((C70010-A00010)**2)+((C70020-A00020)**2)))
    • Formula interpreter: True Position =2*(SQRT((( ppnnnn – ppnnnn)**2)+((ppnnnn-ppnnnn)**2)))

The variable ‘pp’ defines the formula parameter and ‘nnnn’ represents the characteristic from which the value of the formula parameter is taken.

  • “C7” = Target value of characteristic, “A0”= Measured value for single unit, “SQRT”= √, **= exponent

PLM Quality Management (QM), Manufacturing, SAP Process Control

8. Maintain the Defect Codes

PLM Quality Management (QM), Manufacturing, SAP Process Control

9. Enter Sample Procedure, UoM and Base Qty.

PLM Quality Management (QM), Manufacturing, SAP Process Control

10. Save and create an Inspection Lot for testing.

PLM Quality Management (QM), Manufacturing, SAP Process Control

11. Enter Basic Dimensions and have SAP Valuate

PLM Quality Management (QM), Manufacturing, SAP Process Control

12. Once valuated select the GD&T characteristic and calculate it by clicking the “Evaluate Formula” icon.

PLM Quality Management (QM), Manufacturing, SAP Process Control PLM Quality Management (QM), Manufacturing, SAP Process Control

13. Valuate and Save. SAP has calculated GD&T!!!

SAP valuates per the parameters and accepts or rejects the feature. The table below was used to ensure it was being calculated properly with different results, as well as, requirements.

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