Patent · US Active

Powder for layerwise manufacturing of objects

US8710144B2 · kind B2 · utility

78Cited by

18References

42Claims

0Family size

Assignee

EOS GmbH Electro Optical Systems · DE

Inventors

Peter S. Hesse · Bradenton, US
Tillmann Paul · Cologne, DE
Richard Weiss · Cologne, DE

Key dates

Filing date	Oct 31, 2007
Grant date	Apr 29, 2014
Priority date	—
Expiry date	Jun 16, 2029

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/2982
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

The invention describes powders for use in the production of spatial structures, i.e. molded bodies, using layer build-up methods, as well as methods for their efficient production. The powders have the special feature that they have good flow behavior, for one thing, and at the same time, have such a composition that the molded body that can be produced with the powder, using rapid prototyping, has significantly improved mechanical and/or thermal properties. According to a particularly advantageous embodiment, the powder has a first component that is present in the form of essentially spherical powder particles, which is formed by a matrix material, and at least one further component in the form of stiffening and/or reinforcing fibers, which are preferably embedded in the matrix material.

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