Transactions of Materials and Heat Treatment

Title：Mechanical properties analysis on orthogonal preload frame structure with pre-stressed wire-wound

Authors： Wang Wenjie Lin Feng Zhang Lei Wang Xin

Unit： Tsinghua University

KeyWords： multi-ram die forging pre-stress orthogonal preload frame structure mechanical properties

ClassificationCode：

year,vol(issue):pagenumber：2016,41(1):93-101

Abstract：

Heavy multi-ram forging hydraulic press mechanism design is of a contradiction between the independence of structure and the independence of force, which becomes the bottleneck of limiting multi-ram forging hydraulic press tonnage. However, the orthogonal preload frame structure with pre-stressed wire-wound provides a new form to solve the design contradiction of heavy multi-ram forging hydraulic press bearing structure. For this new structure, the mechanical analysis method for the orthogonal preload frame structure with pre-stressed wire-wound was put forward by the experiment and mechanical properties analysis for 90 MN single cylinder double arch multi-ram forging hydraulic press, and the mechanical properties in three stress states (the preload state, the working state and the synthesis state) combining with the actual problem of the orthogonal preload frame structure with pre-stressed wire-wound encountered in the engineering application were analyzed. The results prove that orthogonal preload frame structure has the advantages of large stiffness, high strength and excellent integrity under certain preload coefficient. Therefore, the orthogonal preload frame structure with pre-stressed wire-wound can satisfy the usage requirements of heavy multi-ram forging hydraulic press bearing frame.

Funds：

国家科技重大专项(2012ZX04010082)；国家863计划(2012AA040202)

王文杰(1985-)，男，博士研究生

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