针对实际生产中TC18钛合金模锻件存在的成形难和组织、性能不稳定的问题，对锻件分模面位置和结构进行了调整，并进行实验验证。结果表明，采用顶部分模方式可以大大改善金属的流动性，减少锻造火次，提高生产效率，同时锻件组织较采用中间分模得到的更加均匀，强度和断裂韧性得到了提高，塑性也保持了较高的水平，具有良好的综合性能。
The problems of forming and mechanical property instability for TC 18 titanium alloy forgings have been analyzed in this paper .By adjusting the parting surface position and its structure , and then after testing and verifying , it is found that parting from roof surface can improve the metal flowing state , decrease the forging heats and also increase production efficiency .Moreover, the forging with roof parting surface is found to have more uniform micro-structure with better strength and fracture toughness .The ductility of forging with roof parting surface has remained at a high level , the comprehensive properties is also good .
参考文献
| [1] | S. L. Nyakana;J. C. Fanning;R. R. Boyer .Quick Reference Guide for β Titanium Alloys in the 00s[J].Journal of Materials Engineering and Performance,2005(6):799-811. |
| [2] | 高玉魁.TC18超高强度钛合金喷丸残余压应力场的研究[J].稀有金属材料与工程,2004(11):1209-1212. |
| [3] | 中国机械工程协会塑性工程协会.锻压手册[M].北京:机械工业出版社,2008 |
| [4] | 程里.模锻件分模面淬火裂纹分析与预防[J].金属热处理,2004(10):62-64. |
| [5] | 沙爱学,李兴无,王庆如,鲍如强.热变形温度对TC18钛合金显微组织和力学性能的影响[J].中国有色金属学报,2005(08):1167-1172. |
| [6] | 沙爱学,李兴无,王庆如.高强度TC18钛合金β锻造工艺参数与组织和性能的定量关系[J].机械工程材料,2012(12):49-52. |
| [7] | 李礼,张晓泳,李超,李志友,周科朝.TC18钛合金盘件等温模锻过程有限元模拟及试验[J].中国有色金属学报,2013(12):3323-3334. |
| [8] | 黄湘龙,易幼平,李蓬川,沙爱学.TC18钛合金模锻件锻造成形工艺仿真[J].锻压技术,2012(05):7-11. |
| [9] | 于兰兰,毛小南,张鹏省,赵永庆,袁少冲.热处理工艺对BT22钛合金组织和性能的影响[J].稀有金属快报,2005(03):21-23. |
| [10] | QU Heng-lei,ZHOU Yi-gang,ZHOU Lian,ZHAO Yong-qing,ZENG Wei-dong,FENG Liang,YANG Yan-qing,CHEN Jun,YU Han-qing,LI Hui,ZHANG Ying-nan,GUO Hong-chao.Relationship among forging technology, structure and properties of TC21 alloy bars[J].中国有色金属学会会刊（英文版）,2005(05):1120-1124. |
| [11] | 周义刚;曾卫东;李晓芹 等.钛合金高温形变强韧化机理[J].金属学报,1999,35(01):45-48. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%