Local Surface Modification of P/M Parts without Furnace Treatments


The design of a process to produce a P/M part is driven by shape control, dimensional control, cost and finally properties. Significant compromises are made in order to balance these attributes. Secondary operations allow some separation of these attributes allowing more design flexibility. A new application of friction stir processing produces surface modification with dramatic improvements in properties and good control of shape and dimensions. As all energy used is electrical from mechanical motors and generated in the part to be modified, it is highly efficient with low energy costs. A number of P/M materials have been modified with aluminum, steel and an aluminum matrix composite given as examples. Friction stir processing is capable of lower part costs or producing higher performance parts.

Meeting Name

2006 International Conference on Powder Metallurgy and Particulate Materials, PowderMet 2006 (2006: Jun. 18-21, San Diego, CA)


Materials Science and Engineering

Keywords and Phrases

Aluminum Matrix Composites; Design Flexibility; Dimensional Control; Friction Stir Processing; Furnace Treatments; Local Surface-Modification; New Applications; Secondary Operations; Aluminum; Powder Metallurgy

International Standard Book Number (ISBN)


Document Type

Article - Conference proceedings

Document Version


File Type





© 2006 Metal Powder Industries Federation, All rights reserved.

Publication Date

01 Jun 2006

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