摘要
提出一种半固态搅拌摩擦加工工艺,并通过热电偶测温试验证明了其可行性。以ZL101为研究对象的试验结果表明,大直径搅拌头、高搅拌头旋转速度与低加工速度的组合可使搅拌区金属材料的温度处于固相线与液相线之间;搅拌区后退侧的温度大于前进侧。在加工过程中,搅拌区金属半固态的温度峰值与停留时间随搅拌头的前进而增加。
The semi-solid friction stir processing（SSFSP） was put forward. The temperature measurement experiment by thermocouple verified the feasibility of SSFSP. The experimental results of ZL101 cast aluminum alloy show that the combination of big diameter rotational tool, high rotational velocity and low processing speed can make the temperature of metal in stir zone higher than solidus temperature. The peak temperature of retreating side in stir zone is higher than that of advancing side. During SSFSP process, the peak temperature and holding time of semi-solid metal in stir zone increase with the advancement of rotational tool.
出处
《热加工工艺》
CSCD
北大核心
2015年第20期19-21,共3页
Hot Working Technology
基金
国家自然科学基金项目(51204111)
辽宁省自然科学基金项目(2013024004)
辽宁省科技厅项目(2013222007)
关键词
半固态搅拌摩擦加工
搅拌头
加工速度
温度
semi-solid friction stir processing
rotational tool
processing speed
temperature
