封面图片
2022年, 第17卷 第4期
Cover Story (Haibo LIU, Chengxin WANG, Te LI, Qile BO, Kuo LIU, Yongqing WANG. Front. Mech. Eng., 2022, 17(4): 55)
Thin-walled parts (TWPs) are widely used in sophisticated equipment in aerospace, automobile, shipping, nuclear industry, and other fields. Nevertheless, the characteristics of TWPs, such as their low stiffness, uneven stress distribution, and strong time-varying characteristics, inevitably lead to some machining-induced problems, including deformation, vibration, and low efficiency, during the overall processing, thereby reducing surface integrity and geometric accuracy. As a key element of the manufacturing system, the fixture has an important impact on the machining process and directly determines the final quality of TWPs. This review begins with a discussion of the key role of fixtures in the manufacturing system. The main problems caused by the characteristics of TWP in machining and workholding are then analyzed in detail. Afterward, the definition of TWP fixtures is reinterpreted in a narrow and broad sense. Fixture functions corresponding to the issues of machining and workholding are then clearly stated. Fixture categories are classified systematically according to previous research achievements, and the operation mode, functional characteristics, and structure of each fixture are comprehensively described. The function and execution mode of TWP fixtures are then systematically summarized and analyzed, and the functions of various TWP fixtures are evaluated and graded. Some directions for future research on TWP fixtures technology are also proposed. This review can provide some valuable reference and guidance for scholars to examine TWP fixtures.[展开] ...
ISSN 2095-0233 (Print)
ISSN 2095-0241 (Online)
CN 11-5984/TH
Postal Subscription Code 80-975 Formerly Known as Frontiers of Mechanical Engineering in China 2018 Impact Factor: 0.989