A nonuniform moving heat source model for temperature simulation in ultrasonic-assisted cutting of titanium alloys
作者： Jianbin Chen , Menghui Xu , Chao Xie , Jianke Du , Houfu Dai
DOI: 10.1007/S00170-018-2174-8
关键词: Shear (sheet metal) 、 Amplitude 、 Machining 、 Ultrasonic sensor 、 Acoustics 、 Vibration 、 Temperature gradient 、 Titanium alloy 、 Plane (geometry) 、 Materials science
摘要: The ultrasonic-assisted machining (UAM) technique has been widely used in of difficult-to-cut materials for its well comprehensive performance, especially the mechanical and thermal aspects. In this paper, a nonuniform moving heat source model is proposed to analyze transfer problem during ultrasonic vibration-assisted Ti6Al4V. influences vibration amplitude frequency on temperature distribution are discussed detail. Two main characteristics observed according contours caused by machining: one that equivalent center tends move backward tool rake face, other gradients cutting direction depth inconsistent. For further study, variation with respect parameters near shear plane machined surface calculated. Results show increase can reduce due large gradient. Besides, obtain low while increased results higher after machining. research be provide guidance improving quality efficiency material
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