| HIGH SPEED MILLING OF GRAPHITE ELECTRODE WITH ENDMILL OF SMALL DIAMETER |
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| 作者单位： | WANG Chengyong Faculty of Electromechanical Engineering，Guangdong University of Technology，Guangzhou 510090，China ZHOU Li Faculty of Electromechanical Engineering，Guangdong University of Technology，Guangzhou 510090，China Faculty of Mechanical and Electrical Engineering，Guangdong Polytechnic Normal University，Guangzhou 510665，China FU Hao Faculty of Electrornechanical Engineering，Guangdong University of Technology，Guangzhou 510090，China HU Zhouling Guangdong Mechanical and Electrical Collage，Guangzhou 510515，China |
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| 摘 要： | Graphite becomes the prevailing electrode material in electrical discharging machining (EDM)currently.Orthogonal cutting experiments are carried out to study the characteristics of graph- ite chip formation process.High speed milling experiments are conducted to study tool wear and cutting forces.The results show that depth of cut has great influence on graphite chip formation.The removal process of graphite in high speed milling is the mutual result of cutting and grinding process. Graphite is prone to cause severe abrasion wear to coated carbide endmills due to its high abrasive- ness nature.The major patterns of tool wear are flank wear,rake wear,micro-chipping and breakage. Cutting forces can be reduced by adoption of higher cutting speed,moderate feed per tooth,smaller radial and axial depths of cut,and up cutting.
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| 关 键 词： | 石墨电极 高速制粉 工具磨损 切割力 |
HIGH SPEED MILLING OF GRAPHITE ELECTRODE WITH ENDMILL OF SMALL DIAMETER |
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| Authors: | WANG Chengyong ZHOU Li FU Hao HU Zhouling |
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| Affiliation: | [1]Faculty of Electromechanical Engineering, Guangdong University of Technology, Guangzhou 510090, China [2]Faculty of Mechanical and Electrical Engineering,Guangdong Polytechnic Normal University, Guangzhou 510665, China [3]Faculty of Electromechanical Engineenng, Guangdong University of Technology, Guangzhou 510090, China [4]Guangdong Mechanical and Electrical Collage, Guangzhou 510515, China |
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| Abstract: | Graphite becomes the prevailing electrode material in electrical discharging machining (EDM) currently. Orthogonal cutting experiments are carried out to study the characteristics of graph ite chip formation process. High speed milling experiments are conducted to study tool wear and cutting forces. The results show that depth of cut has great influence on graphite chip formation. The removal process of graphite in high speed milling is the mutual result of cutting and grinding process. Graphite is prone to cause severe abrasion wear to coated carbide endmills due to its high abrasiveness nature. The major patterns of tool wear are flank wear, rake wear, micro-chipping and breakage. Cutting forces can be reduced by adoption of higher cutting speed, moderate feed per tooth, smaller radial and axial depths of cut, and up cutting. |
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| Keywords: | High speed milling Graphite electrode Tool wear Cutting force DIAMETER SMALL GRAPHITE ELECTRODE MILLING SPEED radial axial feed tooth cutting speed rake major patterns cause severe abrasion wear carbide nature removal |
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