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.:
Date of Patent:
Nov. 30, 2021
Filed:
Aug. 08, 2017
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Ryuichi Narita, Tokyo, JP;
Toshiya Watanabe, Tokyo, JP;
Akio Kondou, Tokyo, JP;
Masashi Kitamura, Tokyo, JP;
Hidetaka Haraguchi, Tokyo, JP;
Shuji Tanigawa, Tokyo, JP;
Claus Thomy, Bremen, DE;
Henry Koehler, Bremen, DE;
Michael Kalms, Bremen, DE;
MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo, JP;
Abstract
A process abnormality detection system for a three-dimensional additive manufacturing device which performs additive modeling by emitting a beam to a powder bed determines that a laying abnormality of the powder bed is occurring if at least one of a first condition that an average height of the powder bed from a reference position is out of a first predetermined range or a second condition that a height variation of the powder bed is out of a second predetermined range is satisfied, on the basis of a detection result of a shape measurement sensor.