Impact of Technology on Development of Civilization
International Journal of Research and Reviews in Engineering Sciences – IJRRES
Vol 01, Issue 01; April 2012
INVESTIGATIONS ON THE EFFECT OF
PROCESS PARAMETERS ON THE QUALITY OF
MACHINED SURFACE IN LASER BEAM
MACHINING OF MILD STEEL
1
Pratik, 2Mohammad Arshad Emran, 3Deepak D, 4Anjaiah
Devineni
1,2,3,4
DEPARTMENT OF MECHANICAL AND MANUFACTURING
ENGINEERING, MANIPAL INSTITUTE OF TECHNOLOGY, MANIPAL
UNIVERSITY, MANIPAL - 576104,INDIA pratik.js123@gmail.com, arshad.emran@gmail.com, deepak.d@manipal.edu, anjaiah.d@manipal.edu
Abstract— Laser Beam Machining is widely used manufacturing technique utilized to perform cutting, engraving and welding operations on a wide variety of materials ranging from metals to plastics. In the present work an attempt has been made to study the effect of pr ocess parameters such as feed rate, input power and standoff distance on the quality of the machined surface using Carbon dioxide (CO2) laser beam on 3 mm thick mild steel sheets. The quality of cut is assessed in terms of response parameters such as upper kerf width, lower kerf width, taper of the cut surface and surface roughness. Design of experiments was implemented by using a full factorial design. The effect of the process parameters on response have been shown by means of main effect plots developed using statistical software. It was found that upper kerf width decreased with increase in feed rate and increased with increase in laser power. Surface roughness of the cut decreases with increase in feed rate and power.
Keywords - Laser beam machining, Upper kerf width, Lower kerf width, Surface roughness, design of experiments 1. INTRODUCTION
Laser beam machining (LBM) is widely used in aircraft and automotive industries. It is used to perform various operations such as cutting, drilling, welding and engravi ng on a wide range of materials. Earlier laser technology had a limited scope and was used only in high technology industries. With many
Vol 01, Issue 01; April 2012
INVESTIGATIONS ON THE EFFECT OF
PROCESS PARAMETERS ON THE QUALITY OF
MACHINED SURFACE IN LASER BEAM
MACHINING OF MILD STEEL
1
Pratik, 2Mohammad Arshad Emran, 3Deepak D, 4Anjaiah
Devineni
1,2,3,4
DEPARTMENT OF MECHANICAL AND MANUFACTURING
ENGINEERING, MANIPAL INSTITUTE OF TECHNOLOGY, MANIPAL
UNIVERSITY, MANIPAL - 576104,INDIA pratik.js123@gmail.com, arshad.emran@gmail.com, deepak.d@manipal.edu, anjaiah.d@manipal.edu
Abstract— Laser Beam Machining is widely used manufacturing technique utilized to perform cutting, engraving and welding operations on a wide variety of materials ranging from metals to plastics. In the present work an attempt has been made to study the effect of pr ocess parameters such as feed rate, input power and standoff distance on the quality of the machined surface using Carbon dioxide (CO2) laser beam on 3 mm thick mild steel sheets. The quality of cut is assessed in terms of response parameters such as upper kerf width, lower kerf width, taper of the cut surface and surface roughness. Design of experiments was implemented by using a full factorial design. The effect of the process parameters on response have been shown by means of main effect plots developed using statistical software. It was found that upper kerf width decreased with increase in feed rate and increased with increase in laser power. Surface roughness of the cut decreases with increase in feed rate and power.
Keywords - Laser beam machining, Upper kerf width, Lower kerf width, Surface roughness, design of experiments 1. INTRODUCTION
Laser beam machining (LBM) is widely used in aircraft and automotive industries. It is used to perform various operations such as cutting, drilling, welding and engravi ng on a wide range of materials. Earlier laser technology had a limited scope and was used only in high technology industries. With many
References: [1] C. Wandera, "Laser Cutting of Austenitic Stainless Steel with a High Quality Laser Beam," Lappeenranta University of Technology, Lappeenranta, 2006. no. 10, pp. 777-784, 2008. [10] L. Lin, M. Sohib and P. L. Crouse, "Striation-free Laser Cutting of Mild Steel sheets," CIRP Annals Manufacturing Technology, vol. 56, no. 1, pp. 193-196, 2007.