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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 11565346 B1

PDFFull Text
Date of Patent:
Jan. 31, 2023

Filed:

Sep. 30, 2019

Selective laser solidification apparatus and method

Applicant:

Renishaw Plc, Gloucestershire, GB;

Inventors:

Marc Frank Dimter, Kornwestheim, DE;

Ralph Markus Mayer, Kornwestheim, DE;

Thomas Hess, Munich, DE;

Assignee:

RENISHAW PLC, Wotton-under-Edge, GB;

Attorney:

Oliff PLC

Primary Examiner:

Geoffrey S Evans

Int. Cl.
CPC ...
B23K 26/142 (2014.01); B23K 26/342 (2014.01); B29C 64/153 (2017.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01); B33Y 50/02 (2015.01); B22F 12/00 (2021.01); B23K 26/08 (2014.01); B28B 1/00 (2006.01); B22F 10/10 (2021.01); B22F 10/322 (2021.01); B22F 10/28 (2021.01); B22F 10/366 (2021.01); B23K 26/14 (2014.01); B22F 12/70 (2021.01);
U.S. Cl.
CPC ...
B23K 26/142 (2015.10); B22F 12/00 (2021.01); B23K 26/0869 (2013.01); B23K 26/342 (2015.10); B29C 64/153 (2017.08); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); B33Y 50/02 (2014.12); B22F 10/10 (2021.01); B22F 10/28 (2021.01); B22F 10/322 (2021.01); B22F 10/366 (2021.01); B22F 12/70 (2021.01); B22F 2999/00 (2013.01); B23K 26/1437 (2015.10); B23K 26/1438 (2015.10); B28B 1/001 (2013.01); Y02P 10/25 (2015.11);
Abstract

Selective laser solidification apparatus is described that includes a powder bed onto which a powder layer can be deposited and a gas flow unit for passing a flow of gas over the powder bed along a predefined gas flow direction. A laser scanning unit is provided for scanning a laser beam over the powder layer to selectively solidify at least part of the powder layer to form a required pattern. The required pattern is formed from a plurality of stripes or stripe segments that are formed by advancing the laser beam along the stripe or stripe segment in a stripe formation direction. The stripe formation direction is arranged so that it always at least partially opposes the predefined gas flow direction. A corresponding method is also described.

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