摘要
为研究Ti-6Al-4V粉末冶金材料残余微孔隙对切屑形成的影响,对比分析其锻件切屑的剪切方向角φseg、突起角ρseg和剪切带处的平均剪应变γ_(seg)。结果表明:Ti-6Al-4V锻件切屑的剪切方向角φseg大于其粉末冶金材料;突起角ρse和剪切带的平均剪应变γ_(seg)均小于粉末冶金材料。
In order to study the influence of residual micro-void of the powder metallurgy materials on chip formation, the shear angle φseg bulge angle ρseg and shear band average shear strain γseg of Ti-6A1-4V forging chip were compared and analyzed. The results show that the shear angle φseg, of Ti-6AI-4V forging chip is larger than that of Ti-6A1-4V powder metallurgy material chip. The bulge angle ρse and the shear band average shear strain γseg of Ti-6A1-4V forging chip are less than that of Ti-6AI-4V powder metallurgy material chip.
作者
孙富建
屈盛官
苏飞
邓朝晖
SUN Fujian;QU Shengguan;SU Fei;DENG Zhaohui(Hunan Provincial Key Laboratory of High Efficiency and Precision Machining of Difficult-to-Cut Material,Hunan University of Science and Technology,Xiangtan 411201,China;Intelligent Manufacturing Institute,Hunan University of Science and Technology,Xiangtan 411201,China;School of Mechanical and Automotive Engineering,South China University of Technology,Guangzhou 510641,China)
出处
《兵器材料科学与工程》
CAS
CSCD
北大核心
2018年第6期84-88,共5页
Ordnance Material Science and Engineering
关键词
钛合金
粉末冶金材料
微孔隙
切屑形成
titanium alloy
powder metallurgy material
micro-void
chip formation
