Investigation into the Grindability and Surface Integrity of the Nickel Base Superalloy using Liquid Nitrogen Jet Grinding
Grinding processes are mainly technique employed widely as a finishing process in a variety of materials，such as metals，hardness and brittleness and ductile materials machining to achieve good dimensional and form accuracy of the product with acceptable surface integrity． However，grinding is associated with high specific energy requirements which may be an order higher than that required in other conventional machining processes such as turning，planning，milling etc． Therefore，in grinding process，high grinding zone temperature may lead to thermal damage to the work surface，induces micro-cracks and tensile residual stresses at the ground surfaces，which deteriorate surface quality and integrality of the ground surface．Therefore，grinding fluids are applied in different forms to control such high temperature， but they are ineffective，especially under high speed gnnding conditions where the energy of the fluid iS not sufficient to penetrate the boundary layer of air surrounding the wheel．Moreover，the conventional flood supply system demands more resources for operatmn，maintenance，and disposal，and results in higher environmental and health problems．Therefore，there are critical needs to reduce the use ofcutting fluid in grinding process．and cryogenic cooling grinding is a promising solution．The work presented in this paper aims at evaluating the grind ability and surface integrity of the nickel base super alloy resulting from the application of cryogenic cooling．
Cryogenic cooling Surface integrity Grind ability
C.H.Li Y.L.Hou Y.C.Ding
School of Mechanical Engineering,Qingdao Technological University,266033,China State Key Laboratory School of Mechanical Engineering,Qingdao Technological University,266033,China
国际会议
常州
英文
49-54
2009-11-19（万方平台首次上网日期，不代表论文的发表时间）