P-201 Analysis
This analysis was developed by Volkswagen to ensure each part does not exceed the maximum porosity percentage in key structural areas of a part. Upfront in the development stage parts are assigned a maximum pore percentage value within the part.
The OEM then provides call outs to these pore locations on supplied part prints. Next to each call out, a value is provided which lists the maximum allowable pore size percentage. These “D” values along with the area of the cross sectional slice noted on the part print are required to run this analysis. If the part print is not clear, please contact your OEM point of contact. Once a part has been CT scanned, a void analysis is performed to identify all areas of porosity within the part. The dataset is then cross sectioned according to the specified cross sections on the part print. After executing the analysis, the results are quantified and marked as either “go” or “no go” which lets the customer know if the part has met the part print requirements for each location.
*Note – In addition to the P-201 analysis identifying porosity percentage within a specific area, the program also analyzes in each area for: the size of the largest void, the number of voids, the proximity of one void to another, and the proximity of one void to the outside boundary of the part.
Benefits
- The analysis adheres to the VW 50096 and VW 50097 document requirements. Click Here for official document.