Production Part Approval Process (PPAP)

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Production Part Approval Process (PPAP) is a set of steps followed by manufacturers and suppliers to make sure that safety risks are removed from each automobile part, before the product gets to the distributor and costumer. It is a standardized process that helps manufactures and suppliers to communicate and approve production designs and processes before, during, and after manufacture. Created in hopes to promote a clearer understanding of the requirements of manufacturers and suppliers, PPAP helps ensure that the processes used to manufacture parts can consistently reproduce the parts at stated production rates during routine production runs. This is achieved by all customer engineering design record and specification requirements are properly …show more content…

Design Records (Drawings/ESK) – A printed copy of drawing needs to be provided. If the customer is responsible for designing, this is a copy of customer drawing that is sent together with the Purchase Order (PO). If supplier is responsible for designing this is a released drawing in supplier's release system. "Each and every feature must be “ballooned” or “road mapped” to correspond with the inspection results (including print notes, standard tolerance notes and specifications, and anything else relevant to the design of the part). 9.3. DFMEA (Design Failure Mode and effect analysis) – Design Failure Mode and Effects Analysis (DFMEA) is an application of the Failure Mode and Effects Analysis (FEMA) principles but is specifically aimed at the design stage of the process. The basic concept of the DFMEA is to understand where the product design could fail. The DFMEA method allows the design team to document what they know and suspect about a product’s failure modes prior to completing the design, and then use this information to design out or mitigate the causes of failure. Ideally, the DFMEA is begun at the earliest stages of concept development, and can then be used to help winnow down competing designs and generate new, more robust …show more content…

• This structured discipline provides a thorough evaluation of the product and process. • Control plan identify process characteristics and help to identify their sources of variation (input variables), which cause variation in product characteristics (output variables). 9.7. WIS (Work Instruction sheet) – In control plan document, there is a column named control method. Under this control method it is not possible to write the whole process and preventive measures to avoid chances of error so WIS numbers are written for corresponding process. It is done so that when control method is to be known for any process the corresponding work instruction sheet should be checked and control method detailed description with drawing and pictures will be at the operator or engineers disposal. Work Instruction Sheet consists of a how a process is to be, how to remove chances of error and what are the preventive measures that are to be taken to avoid it. 9.8. Dimensional Results – The organization shall provide evidence that dimensional verifications required by the design record and the Control Plan have been completed and results indicate compliance with specified

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