Heat-Assisted Machining for Material Removal Improvement

7th International Conference on Cooling & Heating Technologies

材料科学;物理学

Hadzley, A. B. Mohd^1 ; Hafiz, S. Muhammad^1 ; Azahar, W.^1 ; Izamshah, R.^1 ; Shahir, K. Mohd^1 ; Abu, A.^1

Faculty of Manufacturing Engineering, Universiti Teknikal Malaysia Melaka, Hang Tuah Jaya, Durian Tunggal, Melaka

76100, Malaysia^1

关键词: Cutting grooves;    Groove formation;    High speed cutting;    Machine spindles;    Material removal;    Pressurized air;    Thermal melting;    Workpiece materials;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/88/1/012052/pdf
DOI  :  10.1088/1757-899X/88/1/012052

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Heat assisted machining (HAM) is a process where an intense heat source is used to locally soften the workpiece material before machined by high speed cutting tool. In this paper, an HAM machine is developed by modification of small CNC machine with the addition of special jig to hold the heat sources in front of the machine spindle. Preliminary experiment to evaluate the capability of HAM machine to produce groove formation for slotting process was conducted. A block AISI D2 tool steel with100mm (width) x 100mm (length) x 20mm (height) size has been cut by plasma heating with different setting of arc current, feed rate and air pressure. Their effect has been analyzed based on distance of cut (DOC).Experimental results demonstrated the most significant factor that contributed to the DOC is arc current, followed by the feed rate and air pressure. HAM improves the slotting process of AISI D2 by increasing distance of cut due to initial cutting groove that formed during thermal melting and pressurized air from the heat source.