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:
Dec. 31, 2019
Filed:
Apr. 24, 2015
Institute of Chemistry, Chinese Academy of Sciences, Beijing, CN;
Institute of Semiconductors, Chinese Academy of Sciences, Beijing, CN;
Xuechun Lin, Beijing, CN;
Wenting Wang, Beijing, CN;
Zhiyan Zhang, Beijing, CN;
Shusen Zhao, Beijing, CN;
Haijuan Yu, Beijing, CN;
Yongmei Ma, Beijing, CN;
Wenhua Sun, Beijing, CN;
Jian Xu, Beijing, CN;
Jinyong Dong, Beijing, CN;
Chuncheng Li, Beijing, CN;
Wenxin Fu, Beijing, CN;
INSTITUTE OF CHEMISTRY, CHINESE ACADEMY OF SCIENCES, Beijing, CN;
INSTITUTE OF SEMICONDUCTORS, CHINESE ACADEMY OF SCIENCES, Beijing, CN;
Abstract
An ultraviolet laser 3D printing device includes a thermostat, a laser head, a non-contact type temperature monitoring device, a scanning galvanometer, a processing platform, a powder laying device, a material to be processed, a computer control system. The device is configured to perform the following functions: presetting a processing temperature by the control system; during the processing procedure, the temperature rise condition of the processed object is monitored by the non-contact type temperature monitoring device and fed back in real time to the control system; and by recording the rise value of the temperature within a certain period, the system can obtain the absorption capability of the laser and the temperature rise degree of the processed material, so that the laser output power can be calculated according to the preset processing temperature value, and the laser power can be adjusted in real time to precisely control the processing temperature.