GMW GMW14669-2013 Organic Coating Performance for Exterior and Interior Metallic Components Issue 2 English.pdf
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1、 WORLDWIDE ENGINEERING STANDARDS General Specification GMW14669 Organic Coating Performance for Exterior and Interior Metallic Components Copyright 2013 General Motors Company All Rights Reserved January 2013 Originating Department: North American Engineering Standards Page 1 of 9 1 Introduction Not
2、e: Nothing in this standard supercedes 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. This performance standard applies to organic surface finishes on metallic automobile body parts and
3、 components. 1.2 Mission/Theme. This standard covers the performance requirements for applied organic surface finishes on metallic automobile body parts and components. The focus is the performance of coated parts for which the coating is GM approved (as evidenced by its presence in MATSPC or other
4、regional approved material database.) However, approval criteria are included for instances when new material is necessary. Six (6) types of requirements are specified in Section 1.3, dependent upon the severity of service operation of the component. All interior painted metal parts must also meet t
5、he requirements of GMW14444. 1.3 Classification. 1.3.1 Type A1. Applicable to surface finishes used on the external body and on external components in areas of exceptionally severe service, e.g., vehicle front, sides, and roof. 1.3.2 Type A2. Applicable to surface finishes used on the external body
6、and on external components in areas of severe service operations, e.g., vehicle rear-facing areas with little/no chipping exposure. 1.3.3 Type A3. Applicable to surface finishes used on external components which are not Type A1 or Type A2, and for which performance requirements must be specially def
7、ined; this type typically is not used. 1.3.4 Type B1. Applicable to surface finishes used on internal body parts and components in areas of exceptionally severe service operations, e.g., solar direct sunlight exposure, and corrosion items in contact with wet floor, such as lower seat structure. 1.3.
8、5 Type B2. Applicable to surface finishes used on internal body parts and components in areas of severe or moderate service operation, e.g., solar indirect sunlight exposure, and corrosion items readily visible near floor, such as brake pedal arm, speaker grilles in lower door. 1.3.6 Type B3. Applic
9、able to surface finishes used on internal components in areas of normal service operation, e.g., solar no direct sunlight exposure; corrosion any other steel components visible with difficulty, such as upper structure under seats, structures visible with closures (e.g., glove box) open or seats fold
10、ed. Note: Structures not visible to customers (e.g., instrument panel support) may require only temporary corrosion protection not covered under this standard. 1.3.7 It is anticipated that some interior components may have mixed service severity (e.g., B1 for corrosion and B3 for solar). In this cas
11、e, the most severe type shall be listed and exception(s) noted on the engineering drawing. 1.3.8 This standard does not cover performance requirements for: 1.3.8.1 Organic coatings on highly stressed exterior parts (e.g., road wheels). See GMW14670 for steel wheels and/or GMW14885 for aluminum wheel
12、s. 1.3.8.2 Organic coatings on chassis components. See GMW14671. 1.3.8.3 Organic coatings on plastic parts. See GMW14797. 1.3.8.4 Organic coatings on fasteners, unless not covered by other specification. 2 References Note: Only the latest approved standards are applicable unless otherwise specified.
13、 Copyright General Motors Company Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW14669 Copyright 2013 General Motors Company All Rights Reserved January 2013 Page 2 of 9
14、 2.1 External Standards/Specifications. ISO 105-A02 SAE J1545 ISO 2813 SAE J1767 ISO 15184 SAE J2527 2.2 GM Standards/Specifications. GMW3005 GMW14701 GMW3059 GMW14729 GMW3208 GMW14797 GMW3286 GMW14829 GMW3417 GMW14865 GMW14124 GMW14872 GMW14162 GMW14885 GMW14333 GMW15282 GMW14334 GMW15287 GMW14444
15、GMW15356 GMW14670 GMW15357 GMW14671 GMW15359 GMW14698 GMW15891 GMW14700 2.3 Additional References. None. 3 Test Preparation and Evaluation 3.1 Resources. 3.1.1 Calibration. The test facilities and equipment shall be in good working order and shall have a valid calibration label. 3.1.2 Alternatives.
16、Alternative test facilities and equipment may also be used. However, all measuring variables as specified in this standard shall be determined correctly with respect to their physical definition. 3.1.3 Facilities. Apparatus as required by the appropriate test methods. 3.1.4 Equipment. Not applicable
17、. 3.1.5 Test Vehicle/Test Piece. The size, dimensions and number of test pieces shall be as specified in the relevant test method for the property concerned. Unless otherwise specified, three (3) samples per test shall be run. 3.1.6 Test Time. Not applicable. 3.1.7 Test Required Information. Not app
18、licable. 3.1.8 Personnel/Skills. Not applicable. 3.2 Preparation. Conditioning, where required, shall be as specified in the relevant test method for the property concerned. 3.3 Conditions. 3.3.1 Environmental Conditions. Not applicable. 3.3.2 Test Conditions. Deviations from the requirements of thi
19、s standard shall have been agreed upon. Such requirements shall be specified on component drawings, test certificates, reports, etc. 3.4 Instructions. Not applicable. 3.5 Data. Not applicable. 3.6 Safety. This standard may involve hazardous materials, operations, and equipment. This standard does no
20、t propose to address all the safety problems associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. 3.7 Documentation. Samples of components or materia
21、l released to this standard shall be tested for conformity with the requirements of this standard and approved by the responsible GM Department prior to the start of delivery of production level components or materials. Any change to the component or material, e.g., design, function, properties, man
22、ufacturing process and/or location of manufacture requires a new release of the product. It is the sole responsibility of the supplier to provide the customer, unsolicited, with documentation of any change or modification to the product/process, and to apply for a new release. If not otherwise agree
23、d to, the entire verification test shall be repeated and documented by the supplier prior to start of delivery of the modified or changed product. In some cases, a shorter test can be agreed to between the responsible GM department and the supplier. 3.7.1 Test Results. The results shall be represent
24、ed in a test report with reference to this standard. 4 Requirements and Procedure 4.1 General. A general summary of requirements is shown in Table A1. 4.1.1 As per GMW3059 requirements, all coatings, pretreatments, post treatments, adhesion promoters, etc., shall be free of hexavalent chromium (Chro
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