Full-density, net-shape powder consolidation using dynamic magnetic pulse pressures
The full-density consolidation of powders into net-shape parts yields high green strength, low shrinkage, short sinter times, superior mechanical properties, and low manufacturing costs. The conventional low-cost, single-press, single-sinter process typically densifies powders at > 65% green dens...
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Veröffentlicht in: | JOM (1989) 1999-07, Vol.51 (7), p.36-37 |
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Hauptverfasser: | , |
Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | The full-density consolidation of powders into net-shape parts yields high green strength, low shrinkage, short sinter times, superior mechanical properties, and low manufacturing costs. The conventional low-cost, single-press, single-sinter process typically densifies powders at > 65% green density. This article desribes the Magnepress process, a powder-prcoessing technique wherein pulsed magnetic pressures consolidate powders into full-density parts without admixed lubricants or binders. The Magnepress techique is especially suitable for producing net-shape products with radial symmetry (e.g., rods, cylindrical parts with internal features, tubular shapes, and high aspect-ratio specimens). Materials mentioned include tungsten-steel composites, samarium cobalt, aluminum 7075, tungsten, plastic-coated iron, 4405, M2 tool steel, 304 stainless, HTSC, and alumina. |
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ISSN: | 1047-4838 1543-1851 |
DOI: | 10.1007/s11837-999-0108-5 |