锻压技术

钛合金高温FLD试验系统

英文标题：Hot FLD test system for titanium alloy

单位：北京航空航天大学

分类号：

出版年,卷(期):页码：2015,40(10):76-81

摘要：

在考虑了高温成形极限试验中高温模具的传热理论分析之后，设计了高温成形极限模具和板料的加热冷却控温系统，并建立了钛合金板材热成形环境下的高温成形极限试验平台。基于该高温成形极限试验系统和高温成形极限试验流程，获得并分析了TC钛合金板料在650，700和750 ℃ 这3种试验条件下的板料温度变化趋势，同时完成了700 ℃下的TC钛合金高温成形极限试验。温度验证结果表明，钛合金板料在3种温度的试验条件下，温度变化幅度均小于±10 ℃,验证了系统的可靠性。在通过验证该高温试验系统的可靠性之后，获得700 ℃高温环境下钛合金板材的成形极限试验数据。

By considering the theoretical analysis on heat transfer process of hot tools in hot FLD test, the heating-cooling temperature reflecting-controlling system for hot forming dies and sheet were designed, and a hot FLD test platform for TC alloy sheet in high temperature environment was established. Based on this hot FLD test system and the hot FLD test process, the temperature variations of TC alloy sheet were obtained and analyzed at the test temperature of 650, 700 and 750 ℃. Furthermore, the hot FLD test of TC alloy sheet at 700℃ was performed. The temperature verification results show that the temperature variation is less than ±10 ℃, and the system reliability is confirmed. Based on the above results, the FLD experimental data of TC alloy sheet at 700 ℃ condition was obtained.

基金项目：

国家自然科学基金资助项目（51275026）

马博林（1986-），男，博士研究生

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