Zhongda (Hebei) Bearing Manufacturing Co., Ltd.

Raw material control system Production Control System Quality management system Quality Inspection System Product Traceability System

Production Control System

Production Part Approval Process (PPAP)

PPAP is part of Advanced Quality Planning. The purpose is to determine whether the supplier correctly understands all engineering design and specification requirements and that the potential production product present in the process can consistently meet these requirements in actual production runs at specified production rates.

PPAP retention/submission requirements

The following are 19 requirements for PPAP submission

design record

FMEA process

initial process study

Check support

Any engineering change documents

Control Plan

Qualified laboratory documentation

Record customer special requests

Customer required project approvals

Measurement system analysis and research

Appearance Approval Report (AAR), such as General

Part Submission Guarantee

size report

Sampling products

Bulk Material Requirements

flow chart

Material performance test results

standard sample

Part Submission Guarantee

A Part Submission Warrant (PSW) is a formally approved document. Submission of the Part Submission Warrant (PSW) requires additional documentation to be verified prior to approval. All measurements and test results showing compliance with drawing and specification requirements must be verified and all required documentation must be available.

Circumstances requiring notification

It is important to identify any further processes that may affect the next customer or the final purchaser of the vehicle and its components. Therefore, changes must be notified in the following additional circumstances. Written documentation should be approved by the approving authority.

Requirements and definitions of requirements

Requirements: Use of other structures or materials than previously approved parts or products.

Interpretation: For example, other structures are recorded as deviations or are included in the design record and are not covered by engineering changes.

Requirements: Production through new or modified tooling (except perishable tooling), molds, molds, patterns, etc., including additional and replacement tooling.

Interpretation: This requirement only applies to tools that have unique form and function that can affect the integrity of the final product. This is not meant to describe standard tools (new or repaired) such as standard measuring devices, drives (manual or power etc.).

Requirements: Production by upgrading or retooling existing tools or equipment.

Interpretation: Upgrading means rebuilding and/or modifying a tool or machine or increasing capacity, performance, or changing existing functionality. Do not question the normal maintenance, repair or replacement of parts on a tool that does not change its performance. This demonstrates the establishment of a method that is predictable and verified for after-sales repair. Rearrangement defines the activity practice, which changes the product/process sequence number recorded in the process flow diagram (PFC). This includes newly added manufacturing processes. Minor adjustments to production equipment may be required to meet safety requirements, such as installing protective covers, eliminating risks to potential clients, etc.

Requirement: Production tools and equipment are transferred to or from a different factory site

Interpretation: A single or multiple point transfer between a production process tooling and/or equipment and a building or facility, such as a supplier transferring floors on the same floor, then a PPAP review is required.

Request: Change supplier parts, non-equivalent materials, or services (e.g. heat treatment, plating)

Interpretation: Materials and services shall be approved

Requirement: Resume production after a stoppage of 12 months or more

Interpretation: For manufactured products whose tools have been idle for 12 months or more. Notification is required to the Team Lead/Nominated Representative when there is no active purchase order for the part and the existing tooling has been idle in high volume production for 12 months or more. The only exceptions are when parts are in smaller quantities, such as special vehicles or special services required by certain PPAPs.

Requirement: Product and process changes impacting internal manufacturing processes or related components from suppliers

Interpretation: Any changes affecting fit, form, function, performance and/or durability requirements need to be notified to the Team Leader/nominated representative.

Requirement: Change test/detection method - new technology (does not affect acceptance criteria)

Interpretation: To change a test method, the supplier shall submit this study to verify that the measurement capabilities of the new method are equivalent to the old method.

Situations that do not require notification

Notification and submission of PPAP is not required under the circumstances described below:
1. Changes do not affect customer's fit, form, function, durability or performance requirements. 2. Replacement of identical measuring instruments (instrument replacement) as part of a metrological maintenance or calibration system