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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 11752694 B1

PDFFull Text
Date of Patent:
Sep. 12, 2023

Filed:

Jul. 28, 2021

Selective laser solidification apparatus and method

Applicant:

Renishaw Plc, Wotton-under-Edge, GB;

Inventor:

Ben Ian Ferrar, Alsager, GB;

Assignee:

RENISHAW PLC, Wotton-under-Edge, GB;

Attorney:

Oliff PLC

Primary Examiner:

Joseph S Del Sole

Assistant Examiner:

Lawrence D Hohenbrink, Jr

Int. Cl.
CPC ...
B22F 3/10 (2006.01); B29C 64/182 (2017.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01); B29C 64/153 (2017.01); B29C 64/268 (2017.01); B29C 64/364 (2017.01); B29C 64/20 (2017.01); B22F 10/28 (2021.01); B22F 10/322 (2021.01); B33Y 50/02 (2015.01); B23K 26/342 (2014.01); B29C 64/386 (2017.01); B22F 10/32 (2021.01); B22F 10/00 (2021.01); B22F 12/70 (2021.01); B22F 10/80 (2021.01); B22F 10/30 (2021.01);
U.S. Cl.
CPC ...
B29C 64/182 (2017.08); B22F 3/101 (2013.01); B22F 10/28 (2021.01); B22F 10/322 (2021.01); B23K 26/342 (2015.10); B29C 64/153 (2017.08); B29C 64/20 (2017.08); B29C 64/268 (2017.08); B29C 64/364 (2017.08); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); B33Y 50/02 (2014.12); B22F 10/00 (2021.01); B22F 10/30 (2021.01); B22F 10/32 (2021.01); B22F 10/80 (2021.01); B22F 12/70 (2021.01); B29C 64/386 (2017.08); Y02P 10/25 (2015.11);
Abstract

A method of selecting a scanning sequence of a laser beam in a selective laser solidification process, in which one or more objects are formed layer-by-layer by repeatedly depositing a layer of powder on a powder bed and scanning the laser beam over the deposited powder to selectively solidify at least part of the powder layers, includes determining an order in which areas should be scanned by: projecting a debris fallout zone that would be created when solidifying each area based on a gas flow direction of a gas flow passed over the powder bed; determining whether one or more other areas to be solidified fall within the debris fallout zone; and selecting to solidify the one or more other areas that fall within the debris fallout zone before solidifying the area from which the debris fallout zone has been projected.

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