Entity

Time filter

Source Type

Cinnaminson, NJ, United States

Hanejko F.,Hoeganaes Corporation
Powder Metallurgy | Year: 2010

New methods of powder metallurgy (PM) that use die heating process for high green density through single press/single sinter have led to greater market acceptance of high density PM parts. Methods to increase density via the single press/single sinter route include options that utilize heated powder and heated dies and warm compaction. The effect of various die temperatures on the green density of an MPIF FLN2-4400 material with 0.35% graphite has shown differences in pore free density for each of the materials. Wrought steel is found to have higher tensile elongation and impact energy than the PM steel and shows a marked directionally of impact energy and fatigue properties between the longitudinal direction and the transverse. For larger parts, heating of both powder and die is recommended. Using a binder treated powder gives approximately 30% reduced variability in measurement over wires for heat-treated FC-0208. Source


Patent
Hoeganaes Corporation | Date: 2011-03-29

The present invention is directed to electrically conductive compacted metal parts fabricated using powder metallurgy methods. The iron-based powders of the invention are coated with magnetic or pre-magnetic materials.


Iron-based powder metallurgical compositions including both iron-copper prealloy and copper powder are described. These compositions, when compacted and sintered, result in compacts having good dimensional consistency.


Patent
Hoeganaes Corporation | Date: 2011-05-06

The present invention is directed to improved compaction techniques for use in powder metallurgical applications using lower temperatures and pressures than are traditionally used in the field.


Patent
Hoeganaes Corporation | Date: 2014-02-28

The present invention is directed to electrically conductive compacted metal parts fabricated using powder metallurgy methods. The iron-based powders of the invention are coated with magnetic or pre-magnetic materials.

Discover hidden collaborations