Patent · US Active

Method and device for producing three-dimensional objects

US8187521B2 · kind B2 · utility

135Cited by

8References

10Claims

0Family size

Assignee

Arcam AB · SE

Inventors

Morgan Larsson · Heby, SE
Anders Snis · Uddevalla, SE

Key dates

Filing date	Jul 27, 2006
Grant date	May 29, 2012
Priority date	—
Expiry date	Mar 2, 2027

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P10/25
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A method for producing three-dimensional objects from a powder material which is capable of solidification by irradiation with a high-energy beam is disclosed. The method comprises homogeneously pre-heating the powder material by scanning with the high-energy beam along predetermined paths over a pre-heating area so that consecutive paths are separated by a minimum security distance which is adapted to prevent undesirable summation effects in the pre-heating area, and then solidifying the powder material by fusing together the powder material. Apparatus for producing such three-dimensional objects is also disclosed.

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