Analysis of Particle Velocity and Temperature Distribution of Struck Surface in Fine Particle Peening.
Analysis of Particle Velocity and Temperature Distribution of Struck Surface in Fine Particle Peening.
复制标题
细颗粒喷丸中撞击表面的颗粒速度和温度分布分析。
DOI：
10.1299/kikaic.67.2700
复制
发表时间：
2001
期刊：
影响因子：
--
通讯作者：
Kenichi Ito
中科院分区：
文献类型：
--
作者：
Hayato Maeda;N. Egami;C. Kagaya;N. Inoue;Hiroaki Takesita;Kenichi Ito
本文研究了细颗粒喷丸过程中被撞击材料表面颗粒速度和温度分布的数值分析。当使用直接压力型加速粒子时，50 μm粒子在撞击金属表面之前的速度计算为222 m/s。在施加空气压力时，细颗粒的加速度与较大尺寸相比显示出显著的增加。此外，实验值与计算值吻合良好。另一方面，温度分布显示最高表面温度为1500 K并立即冷却。
This study examines numerical analysis of particle velocity and temperature distribution of struck material surface in fine particle peening. When the particle is accelerated using a direct-pressure type, the velocity of a 50 μm particle, just before striking the metal surface, was calculated to be 222 m/s. In applying air pressure, the acceleration of fine particles show significant increase compared to larger sizes. Moreover, the experimental values agree well with the calculated ones. On the other hand, the temperature distributions show the maximum surface temperature to be 1500 K and cools instantly.