Patent · US Active

Heat treatment to anneal residual stresses during additive manufacturing

US10618111B2 · kind B2 · utility

5Cited by

2References

9Claims

0Family size

Assignee

Lawrence Livermore National Security, LLC · US

Inventors

James A. DeMuth · Woburn, US
Andrew J. Bayramian · Marblehead, US
Bassem S. El-Dasher · Livermore, US
Joseph C. Farmer · Tracy, US
Kevin J. Kramer · Ann Arbor, US
Alexander M. Rubenchik · Livermore, US

Key dates

Filing date	Jan 28, 2016
Grant date	Apr 14, 2020
Priority date	—
Expiry date	Nov 4, 2036

Classification

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

Abstract

An additive manufacturing system having a heat source for melting powder particles in a desired shape and pattern to produce a product. A secondary heat source is used for heat treating the product to achieve heat treatment. The secondary heat source is used to peen or anneal residual stresses caused by the additive manufacturing process.

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