Patent · US Active

Method of selective laser sintering with improved materials

US7794647B1 · kind B1 · utility

31Cited by
1References
9Claims
0Family size

Inventor

Key dates

Filing dateAug 14, 2006
Grant dateSep 14, 2010
Priority date—
Expiry dateApr 23, 2028

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB29K2995/004
  • WIPO fieldOther special machines
  • WIPO sectorMechanical engineering

Abstract

A method of providing improved powder materials for selective laser sintering (SLS). and related sintering including High Speed Sintering and Selective Inhibition Sintering, processing by orienting a polymer material. The improved materials increase the melting temperature thus increasing the process temperature window, reduce or eliminate amorphous regions thus reducing water absorption, reduce the toughness thus making size reduction easier, and increase heat of fusion. The orientation may be accomplished by deforming the polymer by drawing, rolling, machining, equal channel angular extrusion or similar processes, or by a high shear two roll mill.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.