| 201.
Soft Magnetic Material for A.C.
Applications Soft magnetic
material using powder metallurgical techniques are gaining wide spread use
in motors, compressors and other rotating devices. A high-density soft
magnetic material (AncorLam) was developed with excellent induction and
coercive force. A green density of 7.55g/cm3 at 13-tons/cm2, coercivity of
310 A/m, resistivity of 8000 micro-ohm cm, and a green strength of 100MPa
are achieved. This presentation will discuss application of this material in
motors, in general, operating at frequencies above 400 Hertz. |
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198. High Density via Single
Pressing / Single Sintering
High density processing via single press /
single sinter processing enables powder metallurgy processing of ferrous
materials to be both more cost efficient and produce higher performance
components. Obtaining high densities via single press / single sintering
necessitates a systems approach to preparation of the starting powder premix
and subsequent compaction and sintering. This paper will describe a powder
and processing method that facilitates single press-single sintered
densities approaching 7.5 g/cm³. At this sintered density, the mechanical
properties of the P/M component are significantly improved over existing
compaction techniques and begin to approach the performance of wrought
steel. |
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