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Quality Control of Powder Metallurgy (P/M) Parts for Magnetic Applications / KH. Moyer

Conference Author
Quality and Statistics: Total Quality Management (1993 : Atlanta, GA)
Physical Description
1 online resource (10 pages) : illustrations, figures, tables
Additional Creators
Moyer, KH., American Society for Testing and Materials, and ASTM International
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Summary
Today's specifications for magnetic materials are based on the testing of material as supplied by the materials producer. These test methods are so designed that the specification qualifies the material only as purchased. However, additional operations, such as machining, welding, binding, etc., alter the magnetic properties from those of the raw material. The same problem arises with powder metallurgy (P/M) parts because, although their properties may be equivalent to a well-sintered part fabricated from the raw material, the parts are too small to evaluate using the test methods used to evaluate the raw material. Magnetic properties of sintered parts are predominantly a result of the sintering practice employed. Quality of these parts can vary appreciably as a result of the sintering practice employed in manufacture. Although the powders or the starting material may satisfy specification, there is no guarantee that the end user may receive a quality product after processing is complete. For P/M technology, rings can be fabricated from specified powders under conditions similar to parts being processed, and can be sintered in conjunction with the parts. The magnetic properties of the rings will be equivalent to the magnetic properties of the parts. A quality control procedure is proposed that will guarantee performance of P/M parts in accordance with currently existing P/M material specifications.
Dates of Publication and/or Sequential Designation
Volume 1994, Issue 1209 (January 1994)
Subject(s)
Other Subject(s)
ISBN
9780803152717 (e-ISBN)
9780803118720
0803118724
Digital File Characteristics
text file PDF
Bibliography Note
Includes bibliographical references 8.
Other Forms
Also available online via the World Wide Web. Tables of contents and abstracts freely available; full-text articles available by subscription.
Full text article also available for purchase.
Also available in PDF edition.
Reproduction Note
Electronic reproduction. W. Conshohocken, Pa. : ASTM International, 1994. Mode of access: World Wide Web. System requirements: Web browser. Access may be restricted to users at subscribing institutions.
Technical Details
Mode of access: World Wide Web.
Source of Acquisition
ASTM International PDF Purchase price USD25.
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