1、 WORLDWIDE ENGINEERING STANDARDS General Specification GMW14270 Material Engineering Requirements Copyright 2012 General Motors Company All Rights Reserved December 2012 Originating Department: North American Engineering Standards Page 1 of 12 1 Introduction Note: Nothing in this standard supercedes
2、 applicable laws and regulations. Note: In the event of conflict between the English and domestic language, the English language shall take precedence. 1.1 Scope. The scope of this specification is to clearly communicate the GM Materials Engineering requirements to the supplier during the quotation
3、process. Each Statement of Requirement (SOR) for a part, component or subsystem will reference specifications to ensure that the quotation is based on materials that are suitable for the application. Specifications can include materials specifications and/or performance specifications. Two appendice
4、s are required in the SOR package which contain the Materials Engineering Requirements: Appendix F9: Use GMW14270 (this document), Materials Engineering Requirements, which lists standard requirements and standard call-outs. Appendix F10: Materials Engineering Requirements which lists program specif
5、ic requirements for a given part or component. Note: GM Powertrain does not use the same SOR process that other GM Engineering Centers do. They do not require that an Appendix F10 document be issued. Instead materials requirements are incorporated with the Product Engineering requirements in Appendi
6、x C. Other regions, however have non-Powertrain employees specifying materials for Powertrain parts. Engineers releasing new Powertrain parts for new designs must contact a General Motors Powertrain (GMPT) Materials Engineer to determine the preferred materials. Both SOR Appendix F9 and SOR Appendix
7、 F10 shall be referenced/included in the SOR package. Note: In the case of specification conflicts within the SOR, Appendices F9 and F10 shall be regarded as the authoritative source for materials selection and part performance. If questions arise regarding discrepancies between appendices, contact
8、the GM Materials Engineer for the relevant part. A listing of all Materials Engineering Global Subsystem Leadership Teams (GSSLT) with instructions on locating lead and regional materials engineers is given in Appendix A. 2 References Note: Only the latest approved standards are applicable unless ot
9、herwise specified. 2.1 External Standards/Specifications. None 2.2 GM Standards/Specifications. GMW8 GMW14400 GMW14867 GMW16209 GMW11 GMW14444 GMW14885 GMW16218 GMW3002 GMW14573 GMW15056 GMW16243 GMW3005 GMW14650 GMW15196 GMW16284 GMW3008 GMW14651 GMW15197 GMW16431 GMW3013 GMW14656 GMW15202 GMW16508
10、 GMW3044 GMW14664 GMW15613 GMW16531 GMW3059 GMW14665 GMW15622 GMW16554 GMW3116 GMW14668 GMW15625 GMW16583 GMW3179 GMW14669 GMW15725 GMW16585 Copyright General Motors Company Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted without license
11、 from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW14270 Copyright 2012 General Motors Company All Rights Reserved December 2012 Page 2 of 12 GMW3200 GMW14670 GMW15774 GMW16649 GMW3359 GMW14671 GMW15821 GMW16717 GMW4700 GMW14672 GMW15822 GMW16726 GMW4707 GMW14674 GMW15823 GMW16730 GMW14083 GMW14797
12、 GMW16066 2.3 Additional References. GM1927 Global Supplier Quality Manual GM Engineering Standards: Available to GM suppliers through IHS () The following Appendices of the SOR: - E1 Manufacturing Requirements - F3 Fastening Requirements, Commodity Specific Fastener Requirements - F5 Program specif
13、ic Appearance Engineering Requirements - F9 Use this document (GMW14270), Materials Engineering Requirements, which lists standard requirements and standard call-outs - F10 Materials Engineering Requirements - F11 GM Global Fastener Requirements - G1 A/D/V SOR (Generic) - G2 Supplier A/D/V Process T
14、asks and Deliverables (Commodity specific) TMC003 Material Safety Data Sheet guidance documents (available at ) 3 Requirements 3.1 The material requirements are separated into the following portions: 3.1.1 Standard Notes (see paragraph 3.2). These requirements apply to all parts and must be called o
15、ut on all part drawings or math data. 3.1.2 Specific Standard Notes (see paragraph 3.3). These requirements apply to a part dependent on the material from which it is made. All applicable Specific Standard Notes shall be called out on the relevant part drawings or math data. 3.1.3 Additional Require
16、ments (see paragraph 3.4). 3.2 Standard Notes. Standard Notes are requirements to which the delivered part must conform. Standard Notes must be placed on all drawings or math data. These are the Standard Notes. RESTRICTED AND REPORTABLE SUBSTANCES FOR PARTS PER GMW3059 RECYCLABILITY/RECOVERABILITY P
17、ER GMW3116 3.3 Specific Standard Notes. Specific Standard Notes are requirements the relevant part shall conform to. The Specific Standard Notes shall be placed on the relevant drawing or math data. The Specific Standard Notes are organized by material-related characteristics and/or part location, e
18、.g., plastic parts shall comply with specific plastic standard notes; metallic parts shall comply with specific metallic standard notes; interior parts shall comply with specific interior standard notes. If a part fits into more than one of the listed categories, all Specific Standard Notes of all r
19、elevant categories apply. All specific Material Related Part Performance Standard Notes are included in Table 1. Definition: Reference to “All Interior”, “All Exterior” or “All Engine Compartment” means that a statement applies to all parts located in this portion of the vehicle. For example, althou
20、gh 20.04.06 Brake Pedal is the design responsibility of the chassis organization, the part itself is partially in the passenger compartment (Interior). Therefore, statements under 0 All Interior will apply to 20.04.06 Brake Pedal. Copyright General Motors Company Provided by IHS under license with G
21、eneral Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW14270 Copyright 2012 General Motors Company All Rights Reserved December 2012 Page 3 of 12 Table 1: Section F9 Standard Notes for Material Related Part Perfor
22、mance Requirements Category Standard Notes Performance Requirements for Interior Plastic Parts PERFORMANCE TO GMW14444 Global Performance Requirements for Labels PERFORMANCE TO GMW14573 Performance Requirements for Exterior Plastic Parts PERFORMANCE TO GMW14650 Plastic Parts - Interior Applications
23、(Molded-in-Color and Painted) MATERIAL PART PERFORMANCE TO GMW14651 Performance Requirements for Engine Compartment Plastic Parts PERFORMANCE TO GMW15725 Note: If applicable, additional coding must be added to the preceding specifications based on the classification of the part in the referenced GMW
24、 standard and location of the part in the vehicle. 3.4 Additional Requirements. 3.4.1 Material Documentation Requirement. All materials used shall be noted on the part drawings or math data. Materials shall be called out on the part drawing or in the math data by a standard. Accepted standards are:
25、GMW standards International industry standards In the Production Part Approval Process (PPAP) documentation, the material used shall be documented to its original manufacturers name, trade name and product code as well as the GM drawing callout. Note: Any material change (even within a drawing callo
26、ut) requires notification of GM and may require a new PPAP. 3.4.1.1 Material Callout by External Standards. Use of internationally recognized standards, such as ISO, is generally accepted. For several material categories, callouts by other international standards organizations, such as SAE Internati
27、onal, ASTM International, EN (Europe), JIS (Japan), DIN (Germany), etc., are accepted. In these cases, always check with GM Materials Engineering for compliance. If an ISO or a GM standard exists for the material, it shall be used in preference to other organizational standards. The callout in the d
28、rawing or in the math data must conform to the coding described in the called out standard. If the standard describes more than one material grade, the code for the grade must be noted on the drawing or in the math data. Note: Only material specifications or standards which are available as official
29、 English versions can be used. 3.4.1.2 Material Callout by GM Standards. Material callouts by GM Worldwide, i.e.,“GMW” standards, are preferred. For several material categories, a callout to GM regional standards, such as GMP (North America), QK (Europe), HN (Holden), EDS (Korea), etc., are also acc
30、epted if no GMW standard exists. The callout on the drawing or in the math data must conform to the coding as described in the called out standard. If the standard describes more than one material grade, the code for the required grade must be noted on the drawing or in the math data. Some material
31、categories describe special requirements (such as ultraviolet (UV) stability, high impact or heat stability) with additional codes not identified in the material standard but other documentation. If such requirements apply to the part, it is the responsibility of the part supplier to contact GM in a
32、 timely manner for the applicable additional codings for the math model or drawing callout. In regions where MATSPC is used as the GM Material File, compliance with paragraph 3.4.2 is required. In regions where MATSPC is not used, approved source data (GM Material File) is managed by the regional GM
33、 Materials Engineering organization. 3.4.2 GM Material File. GM Engineering Standards, referring to material callouts, may contain a reference to approved sources such as “ listed in the GM Material s File ”, or, “. listed in MATSPC.”. When this Copyright General Motors Company Provided by IHS under
34、 license with General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW14270 Copyright 2012 General Motors Company All Rights Reserved December 2012 Page 4 of 12 statement is present in the GM Engineering Standard,
35、 then the supplier needs to reference the MATSPC/APOPS or Appearance Database applications in the GM SupplyPower portal for the approved sources. See Appendix A for GM Material File locations and contacts. 3.4.2.1 It is the responsibility of the part supplier to determine if the material for the sup
36、pliers application is listed in the applicable GM Material file. If the material is not listed, the supplier shall request that the suppliers material source (raw material supplier) adds the GM Material File entry in time (prior to PPAP). GM Materials Engineering will give support for new entries un
37、der the constraint that the material dependent certification requirements are met by the raw material supplier. If the material is not listed in the GM Material File at PPAP, the part supplier will be required to validate his material according to the called out GM Material Specification and provide
38、 certification for this material. 3.4.2.2 Certification Requirements (Applicable to Raw Material Suppliers). For plastics materials, a certification statement to GMW3013 to the relevant GM Material Specification is required. For other materials, contact GM Materials Engineering for details. 3.4.3 GM
39、 Approved Combinations (Approved Paints on Plastic Substrates (APOPS). If stated in the relevant GM standard, any combination of materials called out by GM Standard on the part drawing or in the math data must be listed in the GM Material Combination File (APOPS) at PPAP. For APOPS, the supplier of
40、the combination is required to provide specific material and process data (Certification Package) to GM Materials Engineering. This data can partly replace the otherwise required validation according to the material combinations Performance Specification (see paragraph 3.4.4). 3.4.3.1 It is the resp
41、onsibility of the part supplier to identify in GM SupplyPower () whether the combination in scope for his application is listed in APOPS. If the combination is not listed, the supplier must ensure that specific material and process data (Certification Package) is provided in time to achieve the APOP
42、S approval prior to PPAP. GM Materials Engineering will support new entries provided the material combination dependent certification requirements are met by the parts or materials suppliers. If the combination is not listed in APOPS at PPAP, the part supplier will be required to validate his materi
43、al according to the called out GM Performance Specifications and provide certification for this combination. Note: The used materials in the combination may require MATSPC entry prior to APOPS entry (example: Plastic Substrates in a Paint System). See Appendix A for GM Combination File locations and
44、 contacts. 3.4.3.2 Certification Requirements (Applicable to APOPS). For painted or coated materials, a certification statement to GMW14797 to the relevant GM Material Specification is required. For other materials, contact GM Materials Engineering for details. 3.4.4 Material Related Part Performanc
45、e. Dependent on the material category, material performance requirements apply as described in this section. Refer also to Table 1. 3.4.4.1 All materials shall be resistant to other materials (such as aliphatic and aromatic hydrocarbons, fuels, lubricants, oils, greases and alcohols) they contact in
46、 their application. 3.4.4.2 Adhesives Bonding Requirements. Components or assemblies that contain adhesive bonds, structural and non-structural, will require documentation for the bonding process. The process details required in the documentation are given in the specification GMW15625 (Adhesive App
47、lication Approval Requirements). To obtain a copy of the specification, or for question regarding application, consult the appropriate GM Materials Engineer. See Appendix A for GM Material File locations and contacts. 3.4.4.3 Paint, Coating, or Plating Finishes. The use of paint, coating, or plating
48、 finishes shall apply to one of the performance requirements in Table 2. 3.4.5 Nominated Materials. In regions where there are no legal constraints to this process, GM may select the appropriate materials from strategic material categories according to the specific part requirements under considerat
49、ion of function, performance and appearance. This may include the selection of the drawing/math data callout as well as the nomination of the raw material supplier for parts or complete areas of the vehicle. These nominations will be published by an Information Letter in GM SupplyPower. The part supplier is required to use these nominated raw materials in the parts supplied to GM. Note: See Appendix B for instructio
