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. 28, 2025
Filed:
Sep. 28, 2022
Shandong University, Shandong, CN;
Yanshan University, Hebei, CN;
Chuanzhen Huang, Qinhuangdao, CN;
Zexin Li, Jinan, CN;
Hanlian Liu, Jinan, CN;
Zhenyu Shi, Jinan, CN;
Peng Yao, Jinan, CN;
Dun Liu, Jinan, CN;
Hongtao Zhu, Jinan, CN;
Bin Zou, Jinan, CN;
Jun Wang, Shandong, CN;
Zhen Wang, Qinhuangdao, CN;
Longhua Xu, Qinhuangdao, CN;
Shuiquan Huang, Qinhuangdao, CN;
Meina Qu, Qinhuangdao, CN;
Zhengkai Xu, Qinhuangdao, CN;
SHANDONG UNIVERSITY, Jinan, CN;
YANSHAN UNIVERSITY, Qinhuangdao, CN;
Abstract
An alumina-based ceramic tool material with low thermal expansion and a preparation process thereof, accordingly, the ceramic tool material may have both the high hardness of alumina ceramics after the hot pressing sintering, and reduces the thermal expansion coefficient of the overall ceramic material by adding the ScWOas the negative thermal expansion phase, which improves the thermal shock resistance of ceramic tools in high-speed cutting engineering and meets the requirements of large temperature range during the machining of nickel-based superalloys. Moreover, the composite material does not use metal binder and has strong thermal stability even in the high-speed machining under extreme heat-force-chemistry coupling, so it has a high machining compatibility for nickel-based superalloys.