1、 INTERNATIONAL TRUCK AND ENGINE CORPORATION TMS (TRUCK MATERIAL SPECIFICATION)NUMBER: TMS-6044 TITLE: Rear Hood Mounting REVISION: A WRITTEN/EDITED BY: Materials Engineering APPROVED BY: Materials Engineering DATE ISSUED: June 2007 PRINTED COPIES OF THIS DOCUMENT MUST BE VERIFIED FOR CURRENT REVISIO
2、N This specification may involve hazardous materials, equipment, and procedures. This specification does not purport to address all of the safety issues associated with its use. The user is responsible to consult appropriate safety and health practices and to determine the applicability of regulator
3、y limits prior to use. Change Notice: Clarification of Sections 4.5, 4.6.1 and 4.6.2; editorial changes. Reference: File 16-1 Key words: Hood mounts, elastomer, rubber, urethane 1.0 APPLICATION. This specification covers elastomer rear hood mounts. These types of parts can be produced using various
4、processes as may be dictated by the particular application and/or design. Type I Urethane hood support either cast or molded. Type II Urethane hood support, softer than Type I Type III Injection Molded EPDM hood support with an internal lubricant. 2.0 SCOPE This specification covers the general requ
5、irements, property and performance requirements and quality. 2.1 Restricted Chemical SubstancesEffective January 1, 2007, all product supplied to the requirements of this specification must comply with the requirements of the CEMS B-50 specification. 3.0 REFERENCE DOCUMENTS Unless otherwise specifie
6、d, the latest issue of all referenced standards shall apply. The following standards, specifications and regulations are referenced in this specification. Quality System Standard ISO-9001 or TS-16949 ASTM D 5592 ASTM D 2137 INTERNATIONAL Engineering Design Std. A-16 ASTM D 412 ASTM D 2240 CFR 29, Pa
7、rt 1910 ASTM D 624 ASTM D 395 INTERNATIONAL Manufacturing Std. D-13 ASTM D 925 ASTM D 325 INTERNATIONAL TMS-9543 ASTM D 1894 ASTM D 2228 INTERNATIONAL TMS-9009 ASTM D 925 ASTM D 2000 INTERNATIONAL CEMS B-50 ASTM D 573 ASTM D 865 INTERNATIONAL CEMS A-6, Part I ASTM B 117 4.0 GENERAL REQUIREMENTS 4.1
8、Color Shall be black unless otherwise specified on the engineering print. This document is restricted and may not be sent outside International Truck and Engine Corporation or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 200
9、7 International Truck and Engine Corporation. JUNE 2007 Page 1 of 6 NUMBER: TITLE: REVISION: TMS-6044 Rear Hood Mounts A This document is restricted and may not be sent outside International Truck and Engine Corporation or reproduced without permission from Corporate Technical Standards. Suppliers a
10、re required to assume all patent liability. 2007 International Truck and Engine Corporation. 4.2 FinishParts shall be free of pin-holes, blow-holes, bubbles, mold flash and present a smooth exterior surface. Painted steel shall meet requirements of TMS-9009 Class II. 4.3 Steel Shall meet requirement
11、s of CEMS A-6, Part I, Grade 1 or 2, unless otherwise specified. 4.4 Material Properties ElastomersTest samples should be taken from finished parts. Samples from finished parts are preferred even when the referenced test method is for slab samples. Values shown in Table 1 are minimum values unless s
12、hown as a range. Requirements shown in the tables are based upon the following methods: 4.4.1 Hardness: ASTM D 2240 Type A or D. All values are 3 points from specified value. 4.4.2 Tensile Strength: ASTM D 412, Die C. Reported as MPa. 4.4.3 Elongation: ASTM D 412, Die C. Reported as % elongation. 4.
13、4.4 Tear Resistance: ASTM D 624, Die B. Reported as kN/m. 4.4.5 Compression Set: ASTM D 395, Method B, 22 hours. Reported as maximum % set. 4.4.6 Low Temperature Brittleness: ASTM D 2137, Method A, Non-Brittle at -40C (-40F) unless otherwise designated. 4.4.7 Ozone Resistance: ASTM D 1171, Method B,
14、 Expose samples to 70 hours of 100 mPa (0.0000145 psi) ozone partial pressure at 38C (100F). 4.4.8 Adhesion: ASTM D 429, Method A. This test applies to any bonded assembly. All fracture modes are to be cohesive fractures or fracture through the substrate. The Qualification Test Report will include t
15、he fracture loads reported as Mpa values, tested at standard lab conditions. Any adhesive failure modes shall be noted and explained in the report 4.4.9 Abrasion Resistance: Pico Abrasion per ASTM D 2228. 4.5 kg load, 80 revolutions at 1 Hz. Calculate and report standard and Pico index. 4.4.10 Stain
16、ing Resistance: This requirement is temporarily ASTM D 925, Method B, to be consistent with ASTM D 2000 classifications. 4.4.11 Coefficient of Friction: ASTM D 1894 Perform against mating material (contact Materials Engineering for assistance). Report static and kinetic results. 4.5 Aged Properties
17、Test samples shall be taken from finish parts whenever possible. 4.5.1 Heat Resistance: ASTM D 573 or ASTM D 865, age samples for 168 hours at 70C. 4.5.2 Salt Spray/Adhesion ASTM B 117 salt spray test for 100 hours. Test per 4.4.8 Adhesion. 4.5.3 Heat Aged/Adhesion Age test samples for the time, tem
18、perature and method specified in 4.5.1 Heat Resistance. Perform test as per 4.4.8 Adhesion. 4.6 Property And Performance RequirementsThe need for these tests, and details of the specific tests to be performed, will be indicated on the Engineering drawing for the part or assembly. Additional details
19、of the testing may be included in the Engineering Validation Plan for these parts. Unless otherwise specified all tests shall be performed on finished parts. Test fixtures, replicating, as closely possible, the production usage and intent shall be JUNE 2007 Page 2 of 6 NUMBER: TITLE: REVISION: TMS-6
20、044 Rear Hood Mounts A This document is restricted and may not be sent outside International Truck and Engine Corporation or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2007 International Truck and Engine Corporation. built
21、. Details of the test fixtures, including engineering drawings and pictures shall be included in the suppliers qualification report (see Section 5.1). 4.6.1 Rub Test Test samples shall be fixtured so that the rubber and the bracket have a 2mm (0.078in) interference fit. The part shall be tested at a
22、 rate of 10Hz for 1,000,000 cycles. Each specimen shall be weighed before and after testing. 4.6.2 Knock Test Test samples shall be fixtured so that the rubber is cycled from side to side at a rate of 10Hz contacting the bracket during each cycle. The part shall be tested for a total of 1,000,000 cy
23、cles. 4.6.3 Static Compression Deflection: ASTM D 575 Test, Method A, except that a finished part shall be used. The direction and amount of deflection shall be indicated on the engineering drawing or taken from production installation. 4.6.4 Dynamic Spring Rate and Damping; ASTM D 5992. The enginee
24、ring drawing will indicate: 4.6.4.1 The set-up procedure or test configuration including the part numbers of other components required to complete the test set-up configuration. 4.6.4.2 Direction of test. 4.6.4.3 Preload. 4.6.4.4 Amplitude. 4.6.4.5 Frequency. 4.6.4.6 Temperature of test. 4.6.4.7 Spr
25、ing rate required with tolerance (if a tolerance is not noted it shall be assumed to be 5%). 4.6.4.8 Damping required with tolerance (if a tolerance is not noted it shall be assumed to be 5%). 4.6.5 Dynamic Fatigue: ASTM D 5992 except as required for durability cycle. The engineering print shall ind
26、icate the following: 4.6.5.1 The set-up procedure or test configuration including the part numbers of other components required to complete the test set-up configuration. 4.6.5.2 Direction of test. 4.6.5.3 Preload(1).4.6.5.4 Amplitude(1).4.6.5.5 Frequency(1). 4.6.5.6 Duration of test(1). 4.6.5.7 Tem
27、perature of test. 4.6.5.8 Spring rate required with failure tolerance(2)(tolerance is 10% if not otherwise indicated). 4.6.5.9 Damping required with failure tolerance(2)(tolerance is 10% if not otherwise indicated). (1). In many cases this procedure may be described in a block cycle requiring multip
28、le/different inputs. In such case a separate reference on the Engineering drawing should be made to the Engineering validation test plan and the required test profile fully described in that document. (2)Exceeding the failure tolerance is the criteria used to determine component failure. JUNE 2007 P
29、age 3 of 6 NUMBER: TITLE: REVISION: TMS-6044 Rear Hood Mounts A This document is restricted and may not be sent outside International Truck and Engine Corporation or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2007 Internat
30、ional Truck and Engine Corporation. 5.0 QUALITY All parts supplied to this specification shall be uniform in appearance and free from pinholes, blowholes, bubbles, and mold flash. No change in the formulation shall be made by the supplier without prior approval of Materials Engineering, Truck Develo
31、pment and Technology Center. 5.1 QualificationMaterials submitted for approval to this specification shall include the following: 5.1.1 A detailed, signed test report documenting testing to this specification per TMS-9543. 5.1.2 The complete procedure used for preparing and curing materials for test
32、, especially surface preparation (when appropriate) and condition of the test materials. 5.1.3 A complete description, including engineering prints and pictures of any non-standard test fixtures used. 5.1.4 Adhesive, substrate and any chemicals used for bonding where appropriate. 5.2 Submission The
33、material test report shall be submitted to: Manager of Non-Metallic Materials Materials Engineering and Technology International Truck and Engine Corporation PO Box 1109 Fort Wayne, IN 46801 5.3 Approval A report from International will be issued approving new materials to this specification. Formal
34、 approval is not granted until this report has been published and the new material is listed in this specification. However, the approval report may be used as authorization for usage of that approved material/process prior to a change to this specification. 5.4 Quality Control Plan A Quality Contro
35、l Plan for this product will be established by mutual agreement between International and the supplier. Unless specific exception is noted, the following characteristics, where applicable*, shall be included in the plan as features for management by statistical process control. * KCCStatic Stiffness
36、 * Other characteristics for inclusion in the control plan may be specified on the engineering drawing and/or purchase order. * See Engineering Design Standard A-16. 6.0 SOURCE APPROVAL AND QUALITY CONTROL 6.1 Supplier RequirementsAll suppliers to International Truck and Engine are required to be re
37、gistered to ISO 9001 Quality System Requirements. International will also accept TS-16949 registration as long as the supplier can also fulfill all AIAG PPAP (Production Part Approval Process) documentation and approval requirements. Suppliers must maintain their certification with an accredited reg
38、istrar and must furnish copies of registration certificates to their International Corporate Buyer upon request. JUNE 2007 Page 4 of 6 NUMBER: TITLE: REVISION: TMS-6044 Rear Hood Mounts A This document is restricted and may not be sent outside International Truck and Engine Corporation or reproduced
39、 without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2007 International Truck and Engine Corporation. 6.2 ApprovalParts supplied against contracts or purchase orders citing this specification shall be equivalent in all respects to those sampl
40、es that were approved by the purchaser. No changes in formulation or processing practices are permitted without approval. In the event that changes in material, properties, processing practices, construction, color, or labeling of the product are required, the supplier shall notify Materials Enginee
41、ring at TDTC and Purchasing & Logistics of the proposed change(s). Test data indicating conformance to all requirements of this specification, test samples, and new or amended or updated Material Safety Data Sheet(s) (MSDS), in accordance with CFR Title 29, Part 1910 shall be submitted with the requ
42、est for change. 6.3 Process ControlThe supplier shall either perform and report results of tests on specific lots of parts produced using ISO 9001 or TS-16949 guidelines, or provide statistical evidence of the lot having been produced in a state of statistical control and with a process capable of p
43、roviding all required properties. The part supplier and the plant metallurgist and/or the quality control manager of the using International plant may determine testing and reporting requirements on specific products. 7.0 SHIPPING, PACKING AND IDENTIFICATION Loading, packing and identification shall
44、 be in accordance with Manufacturing Std. D-13. 8.0 DESIGNATION ON DRAWINGS Examples: Rear Hood Mount, TMS-6044, Type I 9.0 TECHNICAL INFORMATION For further information related to the technical content of this specification, contact: Suppliers may obtain controlled copies of this specification by c
45、ontacting: Materials Engineering and Technology Dept. Truck Development and Technology Center 2911 Meyer Road Fort Wayne, IN 46803 E-mail: MaterialsEngineeringNav-I Information Handling Service (IHS) 15 Inverness Way East Englewood CO 80112-5776 Phone: 1-800-854-7179 E-mail: AutomotiveIHS.com Websit
46、e: http:/JUNE 2007 Page 5 of 6 NUMBER: TITLE: REVISION: TMS-6044 Rear Hood Mounts A This document is restricted and may not be sent outside International Truck and Engine Corporation or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liab
47、ility. 2007 International Truck and Engine Corporation. Table 1 Property and Performance Requirements Designation: I II III Property Material Urethane Urethane* SBR/BR Hardness 73D 93A 65ATensile Strength 50 43 10Elongation 230 525 300 Tear Resistance 190 100 26Compression Set 8 (70C) 22 (70C) 50 (7
48、0C) Low Temperature Pass Pass Pass Ozone Resistance N/A N/A 85%Adhesion 2.8 2.8 2.8Heat Resistance Hardness 5 5 15 Tensile Strength 30 30 30 Elongation -50 -50 -50 Adhesion -10 -10 -10Salt Spray/Adhesion -15 -15 -15Pico Abrasion R R 140 Staining Pass Pass PassCoefficient of Friction Static R .34 R Kinetic R .29 RDynamic Properties Direction of test Y Y Y Preload R R R Direction of preload R R R Amplitude R R R Frequency R R R Temper
