Transactions of Materials and Heat Treatment

Title：Influence of working cylinder plunger connection form on forging hydraulic press

Authors： Liu Yanyan1 Wang Yong1 He Qigong2

Unit： School of Aeronautical Manufacturing Engineering Nanchang Hangkong University

KeyWords： hydraulic press eccentric forging ball hinge connection forging eccentricity euentric load

ClassificationCode：TG315

year,vol(issue):pagenumber：2023,48(3):170-174

Abstract：

In view of the structural characteristics and working conditions for upward pressure double-column free forging hydraulic press, the working conditions of ball hinge pair connecting working cylinder and movable beam were analyzed, the forming processes of transverse eccentric forging and longitudinal eccentric forging were explained, and the contact state between plunger and cylinder body under the condition of eccentric load was analyzed. Then, combined with the typical connection form of the working cylinder and the movable beam for the upward pressure double-column free forging hydraulic press, the working mechanism of the connection form for the the working cylinder plunger and the movable beam was studied, and the influences of different connection forms for the working cylinder plunger and the movable beam on the hydraulic press were clarified. Furthermore, the structure form suitable for the large-scale upward pressure double-column free forging hydraulic press was determined, and the conditions for the reasonable control of eccentric forging for hydraulic press were studied. Finally, the eccentric load control strategy of hydraulic press was formulated, and the determination thoughts of the maximum allowable forging eccentricity for hydraulic press was proposed, which provided a theoretical basis for the structural design and safe use of the large-scale upward pressure double-column free forging hydraulic press.

Funds：

国家自然科学基金资助项目（51265022）；甘肃省科技计划资助项目（145RJZA187）

作者简介：刘艳妍（1964-），女，学士，教授 E-mail：liuyy@mail.lzjtu.cn

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