1、INTERNATIONAL TRUCK AND ENGINE CORPORATION TMS (TRUCK MATERIAL SPECIFICATION) NUMBER: TMS- 1033 TITLE. Shafts, Steel, Induction Hardened WRiTTEN/EDITED BY: PPROVED BY: Materials Engineering Materials Engineering Change Notice: Reformatted and Editorial Changes Reference: File 02 byeywords: Axle Shaf
2、t; Induction Hardened REVISION: H-1 DATE ISSUED August 2000 1.0 APPLICATION This specification is intended primarily for shafting such as axle shafts that are induction hardened to improve strength characteristics. 2.0 SCOPE This specification covers material, heat treatment, and quality. Since the
3、materials and hardening process allow considerable flexibility in the production hardened depths, several gradient curves representing minimum hardnesses are shown. 2.1 All drawings using this specification shall show the type of steel and gradient hardness curve classification requirements. 3.0 REF
4、ERENCE DOCUMENTS Unless otherwise specified, the latest issue of all referenced standards shall apply. The following standards, specifications and regulations are referenced in this specification. Quality System Standard QS-9000 (IS0 9001) INTERNATIONAL IQR Quality Standard INTERNATIONAL Manufacturi
5、ng Standard D-13 CFR Title 29, Part 1910 4.0 REOUIREMENTS 4.1 Material 4.1.1 Composition Type I: 1541 Steel Type II: Same As Type I Type III: 15B41 Steel With 0.40-0.48% Carbon Optional: 4142-H, 4145-H, 4147-H, 50B50-H, or 5145-H Steel This document is restricted and may not be sent outside Internat
6、ional Truck and Engine Corporation or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 02000 International Truck and Engine Corporation AUGUST 2000 Page 1 of 5 NUMBER: TMS- 1033 4.1.2 Oualitv Mill Practice: Materials shall be ho
7、t rolled special bar quality steel, killed, fine grain, of basic open hearth or basic oxygen manufacture. Unless otherwise specified herein, the ASME Steel Bar Products Manual shall be applicable to this specification in regard to quality. TITLE: REVISION: Shafts, Steel, Induction Hardened H-1 4.2 H
8、eat Treatment All parts processed from 15B41 steel shall be normalized prior to induction hardening at a temperature sufficient to completely refine the grain size in areas which were heated for upsetting. 4.2.1 After machining, the following hardness requirements shall be met by induction hardening
9、 to a 90% minimum martensite structure throughout the induction hardened zone, followed by tempering at 150C (300F) minimum. 4.2.2 Surface Hardened Machined Surfaces Rockwell C 52-59 Unmachined Surface Rockwell C 52-59“ * If necessary, 0.38-0.76 mm (0.015-0.030 in) may be removed for hardness readin
10、g. Conversion to Rockwell C from any other scale shall not be permitted. 4.2.3 Minimum Gradient (Bodv Diameter) The gradient hardness curve shows the required minimum gradient hardness for a series of curves A through H. These curves represent the minimum hardness requirements for various sizes and
11、duty shafting. The maximum depth for each curve at Rc 48 and below shall be 3.2 mm (0.125 in) greater than the minimum depth at corresponding hardness levels. Gradient hardness or case depth should always be selected on the basis of strength necessary to exceed the stress at any location on the cros
12、s section. 4.2.4 Gradient (Spline) In lieu of a specified hardness gradient, a constant power, scanning rate and quench severity shall be used throughout the length of the shaft including the splines. 4.2.5 Fillet (Flanged Shafts) Diagram indicates the typical induction hardening pattern in the fill
13、et. Minimum depths shown below shall apply throughout fillet. Bell Shaped Flange: To Rc 45 3.0 mm (0.120 in) All Others: To Rc 45 2.0 mm (0.080 in) OD min. This document is restricted and may not be sent outside International Truck and Engine Corporation or reproduced without permission from Corpora
14、te Technical Standards. Suppliers are required to assume all patent liability. 02000 International Truck and Engine Corporation AUGUST 2000 Page 2 of 5 NUMBER: TMS- 1033 4.3 Oualitv Control 4.3.1 Surface Defects Parts shall be free from seams or laps which are visible to the unaided eye. Grinding to
15、 remove visible seams or laps is permissible prior to induction hardening, the depth of grind not to exceed 0.75 mm (0.30 in). Ground areas shall be blended with the adjacent area. Parts which exhibit visible defects TITLE: REVISION: Shafts, Steel, Induction Hardened H-1 after grinding shall be reje
16、cted. 4.3.2 Sub-surface Defects All parts shall be inspected by ultrasonic test method after induction hardening to insure freedom from internal quench cracks or forging defects. 4.3.3 Straightening If parts require straightening after induction hardening, the following inspection procedure shall be
17、 mandatory: 1) Check 100% by magnetic particle test method for surface defects. No circumferential or transverse indications shall be permitted. Transverse indications are defined as those indications which lie in planes at angles greater than 15“ from the centerline or axis of the shaft. 2) 100% by
18、 ultrasonic test method for internal defects. None shall be permitted. 5.0 OUALITY All product supplied shall be clean and free from dirt, oils, sharp edges, or defects harmful to product performance. 6.0 SOURCE APPROVAL AND OUALITY CONTROL 6.1 Supplier Requirements Suppliers must conform to the req
19、uirements of the INTERNATIONAL IQR Standard which includes conformance to the QS-9000 (IS0 9001) Quality System Standard. A mutually acceptable Quality Control Plan as described therein is required for source approval to the requirements of this specification. 6.2 Approval Parts supplied against con
20、tracts or purchase orders citing this specification shall be equivalent in all respects to those samples which 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, co
21、nstruction, color, or labeling of the product are required, the supplier shall notify Truck Development and Technology Center and International Purchasing and Supplier Development of the proposed change(s). Test data indicating conformance to all requirements of this specification, test samples, and
22、 new or amended or updated Material Safety Data Sheet(s) (MSDS), in accordance with CFR Title 29, Part 1910 shall be submitted with the request for change. This document is restricted and may not be sent outside International Truck and Engine Corporation or reproduced without permission from Corpora
23、te Technical Standards. Suppliers are required to assume all patent liability. 02000 International Truck and Engine Corporation AUGUST 2000 Page 3 of 5 NUMBER: TMS- 1033 6.3 Process Control The supplier shall either perform and report results of tests on specific lots of parts produced or provide st
24、atistical evidence of the lot having been produced in a state of statistical control and with a process capable of providing all required properties. The part supplier and the plant metallurgist andor the quality control manager of the using International plant may determine testing and reporting re
25、quirements on specific products. 7.0 SHIPPING, PACKING AND IDENTIFICATION Loading, packing and identification shall be in accordance with Manufacturing Std. D-13. TITLE: REVISION: Shafts, Steel, Induction Hardened H-1 8.0 DESIGNATION ON DRAWINGS Designation on drawings shall consist of material Type
26、 and Gradient Hardness Curve classification. Example: Type I, Curve A, TMS-1033. 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 liabili
27、ty. 02000 International Truck and Engine Corporation AUGUST 2000 Page 4 of 5 NUMBER: TMS- 1033 AXLE SHAFTS, STEEL, INDUCTION HARDENED BODY DIAMETER MINIMUM GRADIENT HARDNESS CURVES TITLE: REVISION: Shafts, Steel, Induction Hardened H-1 U GI v3 U 4 50 -F 40 I CURVE A CURVE B CURVE c CURVE D CURVE E C
28、URVE II 2.5 5. O 7.5 10 12.5 15 (O. 10) (O. 20) (O. 30) (0.40) (0.50) (0.60) DISTANCE FROM SURFACE, mm (in) 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. 02000 International Truck and Engine Corporation AUGUST 2000 Page 5 of 5
