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发表于 2007-4-24 21:05:11
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来自： 中国广东深圳
本帖最后由 svw0936 于 2010-3-3 17:10 编辑 , w9 ^; {6 H3 z- g
5 ]: Q4 l$ @9 t( ?* a简单讲解PPAP
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3 Q q* L( h% w, ^. {2 B' _What PPAP is Not
% c) E9 k3 _& x' N7 j: T' T• it is not a task, paper work that the customer wants to evaluate your clerical skills/ O4 x+ M# ~& T: v) m
• it is not documentation that you complete then never look at again
# v6 P! D' f3 ~+ W• it is not a format you fill out to meet a QS9000 requirement. Although it is a QS9000 requirement section 4.2 of Advance Production Quality Planning
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# E6 d& L6 y5 ~" u1 V: e, MWhat is PPAP' c4 c; }. u8 W1 ?* y
<Production part Approval Process>
/ Q+ J& G. b0 v) L% d/ C |7 `• used to evaluate the production process for the manufacture of goods
( ?! Q4 N9 W- C5 k' h" W" P• it is a process, not just a task that your customer requests because he can. B( x/ G9 T) _) w/ J0 Z" R" s
• it is documented method of evaluating a manufacturing process to verify repeatability and functionally of the process# K! o: d" P: A9 T4 k
• A blueprint, if you will, of how a manufacturing process flows, is controlled and maintained for predicated consistency, time, part to part, and shift to shift.
2 J% U4 p/ L, k0 X( D# g" i• The process control plan and PFMEA, which is part of a PPAP is working, living document to control process and evaluate predictability and continuous improvement
' \* } r+ ?6 v3 W5 ]9 ^4 g• If used as a process monitor, a PPAP can identify opportunities for scrap reduction, productivity improvement and cost reduction.
2 P1 x9 s1 e- W# K8 U) q( ~• The point of cost reduction is not only for the customer, it is also for the supplier.
, F6 \; i9 h( C6 c4 g. W• It will redirect monies for capital investment and employee and company stability and strength in the market place.2 B3 n, a# M( D3 \: ?: q# [6 x
• Revision of “preliminary Process capability” now called initial process studies" t/ m$ _* q( T4 W
• The use of CPK or PPK and consistent with the SPC reference manual (CPK of 1.67 now required). c7 V Q% J S6 J' M) A
• Clarifies when a customer notification and/or submission is required.
6 c4 S4 p- n5 t% R1 g- I6 T; @• Requirement for Bulk Material now included.
9 C. m: x) G+ {! s6 i2 n# m• The PPAP process also does two additional things
( S, T" Z* ^, y) G/ ~+ Y- it is used to determine if the supplier understands customer design records or points and specification requirements) C4 d& U! G* H( G4 c, w2 }
- it is also identifies changes that might affect the direct customer or ultimate purchaser of the vehicle or component PPAP third edition4 h+ ]6 a4 R' z# ~
- issued September 1999, effective February 1,20002 w5 ]1 \- C, n9 f
• obsoletes July 1995, second edition
/ U; P6 D) f" Q4 M J1 m• actual change are minimal and evolutional0 ?" w% t: ], c1 ^. t' L- W
• revision included2 X$ ~/ X/ Y% ~1 `% y0 M6 k
• format consistent with QS9000" q6 w6 Z+ [5 R6 j* A) T8 `6 `
• reordered PPAP requirement to align with typical process flow |
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