Grindability Improving of Titanium alloy by Using Minimum Quantity Lubrication with Pneumatic Nozzle

International Conference on Mechanical, Materials and Renewable Energy

机械制造;材料科学;能源学

Singh, S.K.^1 ; Dutta, S.R.^2 ; Madhukar, D.K.^1 ; Sinha, A.K.^2

Department of Mechanical Engineering, Surendra Institute of Engineering and Management, Siliguri

West Bengal

734009, India^1

Mechanical Engineering Department, Sikkim Manipal Institute of Technology, Majitar, Rangpo

Sikkim

737132, India^2

关键词: Alumina grinding wheels;    Grindabilities;    Grinding fluids;    Grinding force;    Grinding zone temperatures;    Minimum quantity lubrication;    Pneumatic nozzles;    Specific energy;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/377/1/012217/pdf
DOI  :  10.1088/1757-899X/377/1/012217

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Major problem associated while grinding titanium alloy are high specific energy and high grinding zone temperature. To reduce temperature, grinding fluid was used but majority of them was wasted due to formation of stiff air layer around porous grinding wheel rotating at high speed which deflects grinding fluid away from grinding wheel.This paper presents an innovative improvement of MQL process by adding pneumatic nozzle. High compressed air jet from pneumatic nozzle is impinged on grinding wheel surface at an angle of 45° which suppress stiff air layer and clean machined chip, clogged wheel pores from grinding wheel surface. In this work, titanium grade I with alumina grinding wheel is ground at an infeed of 30 μm under flood cooling, MQL and MQL with pneumatic Nozzle conditions. Experimental result shows grindability of titanium grade I alloy under MQL with pneumatic nozzle proves to be an extremely efficient in order to lower grinding force, force ratio, wheel wear, wheel loading and surface roughness.