| 龙 朋， 吕彦明， 赵尊立.径向锻锤参数对叶片毛坯成型质量影响[J].轻工机械,2017,35(4):17-22 |
| 径向锻锤参数对叶片毛坯成型质量影响 |
| Influence of Parameters of Radial Forging Hammer on Forming Quality of Blade Blank |
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| DOI：10.3969/j.issn.1005 2895.2017.04.004 |
| 中文关键词: 径向锻造 叶片毛坯 锻锤参数 最小区域圆法 晶粒尺寸 |
| 英文关键词:radial forging blade blank hammer parameters minimum area circle method grain size |
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| 中文摘要: |
| 针对径向锻造锤头型面参数对叶片毛坯成型质量影响显著情况，借助有限元分析软件Simufact.Forming的径向锻造和微观组织演变模拟模块，对叶片毛坯在3类型面曲率半径不同的锤头作用下的径向锻造成型过程进行仿真分析；借助MATLAB工具采用最小区域圆法对锻后毛坯截面圆度定量评价，获悉径向锻造过程中锤头型面曲率半径对叶片毛坯成型质量的影响规律。结果表明：在锤头整个锻造区域内，圆度误差呈“M”型变化趋势；采用径向锻造方法锻造圆柱形毛坯时，锤头型面曲率半径应略大于目标工件半径；宜采用轴向多次小进给量锻造。锤头型面曲率半径越小，毛坯整形区晶粒尺寸分布越均匀，平锻锤头对预成型区晶粒细化效果显著。研究结果对叶片毛坯径向锻造批量化生产提供有价值的参考。 |
| 英文摘要: |
| Aiming at the significant effects of the parameters of radial forging hammer face on the forming quality of blade blanks, with the help of finite element analysis software Simufact.Forming of the radial forging and micro structure evolution simulation module, the effects of blade roughness on hammerhead with different radius of curvature and the curvature radius of the hammer face during the radial forging process were studied. The influence of the curvature radius on the forming quality of the rough blank was analyzed. The results showed that the circularity error was like "M" in the whole forging zone of the hammer, and the radius of curvature of the hammer surface should be slightly larger than the radius of the target when forging the cylindrical blank by the radial forging method. Small feed forging would be better. The smaller the radius of curvature of the hammer face, the more uniform the grain size distribution in the blank area, and the bigger the effects of the flat forging hammer on grain refinement in the preforming zone. The results provided valuable references for radial forging batch production. |
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