1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2003 09 30 Revised Para 3.0 inserted; para 3.1, 3.6 and 4 deleted 2000 08 04 Activated G. Weber Printed copies are uncontrolled Copyright 2003, Ford Global Technologies, Inc. Page 1 of 2 WIRE, NICKEL ALLOY WSS-M4A181-A 1. SCOPE The material de
2、fined by this specification is a nickel-aluminum alloy wire. 2. APPLICATION This material was originally released as feed wire for the bond coat of a two-coat system for thermally sprayed cylinder bores in aluminum cylinder blocks. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS M
3、aterial suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.2 CHEMICAL COMPOSITION (Weight Percent) Nickel 93.00 min Aluminum 4.00 4.75 Silicon 1.00 max Titanium 0.25 1.00 Others (Each) 0.60 3.3 WIRE DIAMETER, mm 1.6 3.4 PHYSIC
4、AL PROPERTIES 3.4.1 Density 8.25 g/cc 3.4.2 Melting Point 1438 C 3.4.3 Coefficient Of Thermal Expansion 13.0 m/mK 3.4.4 Thermal Conductivity 23.8 W/mK 3.5 QUALITY Wire shall be uniform in quality and condition, clean, and free from kinks, twists, scrapes, splits, pipes, cold shuts and other injuriou
5、s imperfections. The surface shall have a smooth finish, free from pits, abrasions and other injurious surface imperfections. ENGINEERING MATERIAL SPECIFICATIONWSS-M4A181-APrinted copies are uncontrolled Copyright 2003, Ford Global Technologies, Inc. Page 2 of 2 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 REFERENCE DOCUMENTS The following documents are referenced in this specification: WSS-M99P1111-A
