A Study on Laser Surface Hardening of Cylindrical Components in Manufacturing Process Balasubramanian S*, Thirumalai R**, Manonmani K*** *Associate Professor, Department of Mechanical Engineering, SNS College of Engineering, Anna University, Tamil Nadu, India **Professor, Department of Mechanical Engineering, Dr. N.G.P. Institute of Technology, Coimbatore, Tamil Nadu, India ***Associate Professor, Department of Mechanical Engineering, Government College of Technology, Anna University, Tamil Nadu, India Online published on 14 October, 2016. Abstract Continuous improvement in the manufacturing sector advances the comfort of our society. The selected moving pattern of the laser hardening system was a spiral, in which the bottom roller rotates and moves axially by keeping laser head fixed. The different sizes of specimens made according to the requirement of studies like microstructure, hardness and depth, wear resistance. The properties investigated are microstructure, hardness, depth of hardness, temperature distribution and trial run of the bottom roller for yarn test. Finite element analysis conducted for temperature distribution in the model using ANSYS software. The laser treated bottom roller was fitted on the textile machine for a trial run. Performance study made for fitment and productivity. The yarn produced by the laser treated bottom roller were tested and compared with the existing yarn results and the yarn standards.. The process parameters, laser power, scanning speed and pulse width, which are influencing the hardness and depth are selected. Pre-tests are made to fix the range of the parameters. The combination of the parameters in their range was arrived from the design matrix of central composite rotatable design. The regression equations have been developed from the design matrix and responses using MINITAB 14 software. The models have been checked for adequacy using ANOVA technique. Top Keywords Laser, Yarn, ANSYS, Finite element analysis, ANOVA. Top |