|
摘要：
|
|
采用液态模锻工艺，对Al-10Si-0.8Ti-0.5In新型铝合金机械端盖件进行了成形，并对不同浇注温度和压力下成形件的耐磨损性能和耐腐蚀性能进行了测试与分析。结果表明：随着浇注温度的升高和压力的增大，试样的磨损体积和单位面积质量损失量先逐渐减小再缓慢增大；与640 ℃浇注温度相比，680 ℃浇注时，试样的磨损体积和单位面积质量损失量分别减小了46.88%和46.15%；与150 kN压力相比，300 kN压力下，试样的磨损体积和单位面积质量损失量分别减小了48.88%和53.33%。Al-10Si-0.8Ti-0.5In新型铝合金机械端盖件试样的液态模锻工艺参数优选为：浇注温度为680 ℃、压力为300 kN。
|
|
A mechanical end cover of new aluminium alloy Al-10Si-0.8Ti-0.5In was formed by liquid die forging process, and the wear resistance property and corrosion resistance property of formed parts were tested and analyzed under different pouring temperatures and pressures. The results show that with the increasing of pouring temperature and pressure, the wear volume and the mass loss per unit area of sample decrease first and then increase slowly. Compared with the pouring temperature of 640 ℃, the wear volume and the mass loss per unit area of sample decrease by 46.88% and 46.15% respectively at the pouring temperature of 680 ℃, and compared with the pressure of 150 kN, the wear volume and the mass loss per unit area of sample decrease by 48.88% and 53.33% respectively under the pressure of 300 kN. Thus, the liquid die forging process parameters of mechanical end cover sample for new aluminum alloy Al-10Si-0.8Ti-0.5In were optimized with the pouring temperature of 680 ℃ and the pressure of 300 kN.
|
|
基金项目：
|
|
国家自然科学基金资助项目(51409732)
|
|
作者简介：
|
|
林梅（1987-），女，硕士，讲师，E-mail：linsuca61068@163.com
|
|
参考文献：
|
[1]吴孟武,华林,周建新,等.导热铝合金及铝基复合材料的研究进展[J].材料导报,2018,32(9):1486-1495.
Wu M W, Hua L, Zhou J X, et al. Advances in thermal conductive aluminum alloys and aluminum matrix composites[J]. Materials Review,2018,32(9):1486-1495.
[2]龚乾江,杨明,梁益龙,等. 211Z-X新型高强韧铝合金热成形及动态再结晶行为研究[J].稀有金属,2018,42(1):36-44.
Gong Q J, Yang M, Liang Y L,et al. Hot formability and dynamic recrystallization behavior of new high performance aluminum alloy 211Z-X[J]. Chinese Journal of Rare Metals, 2018, 42(1):36-44.
[3]刘文辉,邱群,陈宇强,等.预热温度对等径角轧制6016铝合金织构及力学性能的影响[J].稀有金属,2018,42(6):586-593.
Liu W H, Qiu Q, Chen Y Q, et al. Texture evolution and mechanical properties of 6016 aluminum alloys as equal channel angular rolling at different preheat temperatures[J]. Chinese Journal of Rare Metals, 2018,42(6):586-593.
[4]李文刚.铝合金薄壁零件的机械加工工艺研究[J].军民两用技术与产品,2018,(14):130, 119.
Li W G. Study on machining technology of thin-walled aluminum alloy parts[J]. Dual Use Technologies & Products, 2018, (14): 130, 119.
[5]韩桥,兰冬云.液态模锻压铸工艺在铝合金汽车结构件生产上的应用[J].中国铸造装备与技术,2016,12(3):80-83.
Han Q, Lan D Y. Application of liquid die forging and die casting technology in the production of aluminum alloy automobile structural parts[J].China Foundry Machinery & Technology, 2016,12(3):80-83.
[6]王刚.液态模锻7055铝合金的组织与力学性能研究[D].北京：北京交通大学,2016.
Wang G. Study on Microstructure and Mechanical Properties of the Liquid Forging 7055 Aluminum Alloy[D]. Beijing: Beijing Jiaotong University,2016.
[7]申伟,张利军.铝合金壳体热模锻技术研究[J].金属加工: 热加工,2016,(23):41-42.
Shen W, Zhang L J. Study on hot die forging technology of aluminum alloy shell[J]. MW Metal Forming,2016,(23):41-42.
[8]王祝堂.中国的铝锻压工业[J].有色金属加工,2016,45(2):5-7.
Wang Z T. Aluminum forging industry in China [J]. Nonferrous Metals Processing,2016,45(2):5-7.
[9]李超.7075铝合金端盖件液态模锻成形工艺研究[D]. 哈尔滨:哈尔滨工业大学,2017.
Li C. Study on Liquid Die Forging Process of 7075 Aluminum Alloy End Cover[D]. Harbin: Harbin Institute of Technology,2017.
[10]刘折.2A12硬铝合金机械加工工艺研究[J].技术与市场,2018,25(2):99-100.
Liu Z. Study on machining technology of 2A12 duralumin alloy [J]. Technology & Market, 2018,25(2):99-100.
[11]刘志英,王晓峰,刘柳.模锻温度对机械转子叶片热疲劳和磨损性能的影响[J].锻压技术,2018,43(3):144-148.
Liu Z Y, Wang X F, Liu L. Influence of die forging temperature on thermal fatigue and wear properties of mechanical rotor blades[J]. Forging & Stamping Technology,2018,43(3):144-148.
[12]于锁清,赵娟,倪利勇.模锻参数对铝基复合材料汽车连杆耐磨性能的影响[J].锻压技术,2018,43(2):162-165.
Yu S Q, Zhao J, Ni L Y. Influence of die forging parameters on wear resistance of automobile connecting rod for aluminum matrix composite[J]. Forging & Stamping Technology,2018,43(2):162-165.
|
|
服务与反馈：
|
|
【文章下载】【加入收藏】
|
|
|
|
