Electrical discharge diamond grinding of high speed steel

被引:47
作者
Choudhury, SK [1 ]
Jain, VK [1 ]
Gupta, M [1 ]
机构
[1] Indian Inst Technol, Dept Mech Engn, Kanpur 208016, Uttar Pradesh, India
关键词
D O I
10.1080/10940349908945685
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
A combination of two machining processes (i.e., a hybrid process) has a potential to improve process performance. This paper reports on experimental investigation of the electrical discharge diamond grinding process that combines mechanical grinding with electrical discharge machining. In this process, the workpiece is simultaneously subjected to heating, by electrical sparks bridging the gap between the metallic wheel bonding material and the work, and abrasion by diamond grains. The effect of current, voltage, pulse-on-time and duty factor on the grinding forces and the material removal rate while machining high speed steel workpiece, are investigated. The spark discharges facilitate grinding by thermally softening the work material in the grinding zone, and consequently decreasing the nromal force. It is observed that the material removal rate increases with an increase in current and pulse on-time, while it decreases with an increase in voltage and duty factor. These independent parameters are also found to significantly influence the grinding forces.
引用
收藏
页码:91 / 105
页数:15
相关论文
共 18 条
[1]  
AOYAMA T, 1986, 14 N AM MAN RES C SM, P654
[2]  
Benedict G.F., 1987, NONTRADITIONAL MANUF
[3]  
Boothroyd G., 1988, Fundamentals of Metal Machining and Machine Tools
[4]  
Bowden F.P., 1986, The friction and lubrication of solids
[5]  
GRODZINSKII EY, 1982, SOV ENG RES, V2, P90
[6]  
KITAGAWA T, 1990, WEAR, V139, P251
[7]  
KONIG W, 1993, NIST SPECIAL PUBLICA, V847, P455
[8]   HYBRID MACHINING OF HARD AND BRITTLE MATERIALS [J].
KOSHIMIZU, S ;
IANSAKI, I .
JOURNAL OF MECHANICAL WORKING TECHNOLOGY, 1988, 17 :333-341
[9]   Grinding of cemented carbide with electrical spark assistance [J].
Koshy, P ;
Jain, VK ;
Lal, GK .
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 1997, 72 (01) :61-68
[10]   Mechanism of material removal in electrical discharge diamond grinding [J].
Koshy, P ;
Jain, VK ;
Lal, GK .
INTERNATIONAL JOURNAL OF MACHINE TOOLS & MANUFACTURE, 1996, 36 (10) :1173-1185