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:
Mar. 11, 2025
Filed:
Dec. 21, 2020
Aecc Shanghai Commercial Aircraft Engine Manufacturing Co., Ltd., Shanghai, CN;
Aecc Commercial Aircraft Engine Co., Ltd., Shanghai, CN;
Liming Lei, Shanghai, CN;
Yali Li, Shanghai, CN;
Yanli He, Shanghai, CN;
Xiaohui Chen, Shanghai, CN;
Jun Fu, Shanghai, CN;
AECC SHANGHAI COMMERCIAL AIRCRAFT ENGINE MANUFACTURING CO., LTD., Shanghai, CN;
AECC COMMERCIAL AIRCRAFT ENGINE CO., LTD, Shanghai, CN;
Abstract
A method for prefabricating pore defects by controlling a SLM process, including performing laser scanning on a specified metal melt layer (LY) according to a first scan path (P) and a second scan path. The first scan path (P) and the second scan path (P) have a path overlap zone (A), the path overlap zone (A) has a predetermined width, and laser energy input superimposed in the path overlap zone (A) is controlled to reach a predetermined energy value, whereby keyholes are formed at a plurality of positions in a lengthwise direction of the path overlap zone (A), the specified metal melt layer (LY) is taken as a defect layer, and the keyholes in the path overlap zone (A) is taken as pore defects.