【作者】 韩念； 王华君； 朱春东； 饶润胤； 彭军波；

【Author】 Han Nian;Wang Hua-jun;Zhu Chun-dong;Rao Run-ying;Peng Jun-bo;Wuhan University of Technology School of Materials Science and Engineering;

【机构】 武汉理工大学材料科学与工程学院；

【摘要】 在热作模具服役过程中,热应力及机械载荷的综合作用易导致模具产生塑性变形与磨损而失效,从而降低模具使用寿命。针对热作模具的寿命预期研究与失效测试等问题,本文分析了国内外塑性成形模具环境服役试验模拟的研究现状,重点讨论了热作模具在热塑性变形条件下服役环境的模拟测试方法及装置。通过模拟热塑性成形过程中坯料的应力幅值与环境温度变化,获得热成形模具的服役环境,从而提出了一种基于环境服役条件的热作成形模拟试验方法与装置。该方案可为热作模具塑性成形过程中失效问题的研究提供试验支撑。更多还原

【Abstract】 During the service of hot working die, the combined action of thermal stress and mechanical load can lead to plastic deformation and wear of the die, and thus reduce the service life of the die. According to the research problems such as life expectancy and failure test of hot working die, this paper analyzes the domestic and foreign research status of hot working die environment simulation test service, discusses the simulation test method and device for hot working die environment served in hot deformation conditions. Through the simulation of hot plastic forming process of billet stress amplitude and the change of environmental temperature, obtain the service environment of hot working die, and put forward a simulation test method and device for hot working die based on the thermal environment conditions of service. The scheme can provide experimental support for the study of failure in the plastic forming process of hot working die.更多还原