PPAP must be applicable to internal and external supplier sites that provide bulk materials, production materials, production parts or maintenance parts. For bulk materials, PPAP is not required unless required by customers.
The purpose of PPAP is to determine whether the supplier correctly understands all the requirements of the customer's engineering design records and specifications, and whether its production process has the potential to meet the customer's requirements according to the specified production rhythm in the actual production process.
PPAP products must be taken from an effective production process.
The so-called effective production process:
One to eight hours of production.
L and at least 300 continuously produced parts, unless otherwise specified by the customer's authorized quality representative.
L Use the same tooling, measuring tools, processes, materials and operators as the production environment for production.
L Every part manufactured in an independent production process, such as the same assembly line and/or work unit, parts in each cavity of multi-cavity molds, molds, tooling and copying molds, must be measured, and representative parts must be tested.