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:
Oct. 21, 2025
Filed:
Jan. 20, 2022
Dalian University of Technology, Liaoning, CN;
Institute of Metal Research, Chinese Academy of Sciences, Liaoning, CN;
Jiang Guo, Liaoning, CN;
Renke Kang, Liaoning, CN;
Zhaocheng Wei, Liaoning, CN;
Yong Zhao, Liaoning, CN;
Bin Xu, Liaoning, CN;
Zhuji Jin, Liaoning, CN;
Dianzhong Li, Liaoning, CN;
DALIAN UNIVERSITY OF TECHNOLOGY, Liaoning, CN;
INSTITUTE OF METAL RESEARCH, CHINESE ACADEMY OF SCIENCES, Liaoning, CN;
Abstract
A method for evaluating a surface cleanliness oriented toward additive forging of a metal substrate employs weight coefficients corresponding to oil contaminants, particles and chips. Contamination scores of different contaminants are determined separately by different methods, and a surface cleanliness thereof is characterized in a quantitative manner by calculating the sum of the product of the weight coefficient and the contamination score of each contaminant. Further, an accurate and systematic method for evaluating a surface cleanliness employs weight coefficient of each contaminant determined based on a degree of adverse influence of the contaminant on the interface bonding of a substrate. Different detection methods are used for different contaminants. The contamination score of each contaminant is determined by the sum of the product of the weight coefficient and the contamination score of the corresponding contaminant, the comparison relationship is thus established, a cleanliness level is finally determined.