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摘要：
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分析研究了叶片成形工艺,确定了叶片制坯的挤杆、镦头工艺路线。利用PRO/E初步创建模具型腔,采用有限元分析模拟软件DEFORM对单榫头叶片精锻成形工艺过程进行三维热力耦合数值模拟。对不同摩擦条件下的温度场、等效应力场以及载荷-时间变化曲线进行了分析,得出不同摩擦因子对叶片制坯成形的影响,为单榫头叶片制坯工艺成形过程提供理论指导。得出较合理的毛坯、温度场、等效应力场及载荷-时间曲线。对优化叶片制坯工艺参数,提高航空工业叶片精锻工艺研究水平具有重要意义。
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The blade forming process was studied in order to decide the bar-extrusion and head-upset as the process route.The engineering software Pro/E was used as a geometric modeling tool to create the die-cavity.In order to study the effect of friction coefficient and provide theoretical direction in forming blade with one rabbet,the 3D thermal-couple mechanical simulation for forming IN718 alloy blade with one rabbet was carried out and the temperature field,the equivalent stress field and load-time curve were analyzed under different friction conditions by the finite element technique software DEFORM.After that,the reasonable blank,temperature field,equivalent stress field and load-time curve could be obtained.The research is important to optimize the processing parameters of blade forming and to develop the precision forging of blades in aero-engine.
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基金项目：
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作者简介：
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参考文献：
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[1]张志文.叶片锻造[M].西安:西安交通大学出版社,1987.
[2]刘艳.叶片制造技术[M].北京:科学出版社,2002.
[3]王乐安.航空工业中锻压技术极其发展[J].锻压技术,1994,29(1):57-61.
[4]梅瑞斌,齐广霞,包立,等.In718合金杯形件等温挤压成形数值模拟.热加工工艺,2005,4(4):50-52.
[5]蔡旺.叶片精锻过程三维热力耦合有限元模拟[D].西安:西北工业大学,2002.
[6]吕成,张立文,牟正君,等.TC4钛合金锻件锻造过程三维热力耦合有限元模拟[J].锻压技术,2007,32(1):28-31.
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