02418nam a2200265 a 4500 vtls000059182 KUKTEM 20251114204515.0 120406t2011 my a f m 001 0 eng d THE0007501(Local) 201905161439 fawwaz 201204061100 ida 201204061059 ida UMP TS156 .K43 2011 rs Thesis Khairul Fikri Muhamad Optimization of cutting parameters for CO2 laser beam cutting using variable wiight grey-taguchi method / Khairul Fikri Muhamad Kuantan, Pahang : UMP, 2011 xiv, 108 p. : ill. (some col.) ; 30 cm. + 1 CD-ROM Thesis (Master of Engineering in Manufacturing) -- Universiti Malaysia Pahang - 2011 Bibliography : p. 96-101 Carbon Dioxide (CO2) laser beam cutting (LBC) process involves several parameters. These parameters need to be optimized in order to get the best quality output. Researchers had applied various types of optimization methods which are used for single or multi-objectives problems. One of the methods is Grey-Taguchi method. However, there is a disadvantage of these methods. This study focuses on improving the Grey-Taguchi method in order to optimize machining parameters for CO2 LBC. The Variable Weight Grey-Taguchi method is proposed which considering all possible weights to be assigned to the control and noise factors. The considered control factors are stand-off distance, cutting speed and laser power. This study also considers surrounding temperature as noise factor. The superior of these methods is merely depending on the response factors which are Surface Roughness (SR), Kerf Taper Angle (TAP), Heat Affected Zone (HAZ) and Kerf Width (KW). Results from Matlab assisted physical experiment shows there is an effect on weight assigning to the factors. Results also show that the proposed method successfull improved all the response factors. Surface roughness had improved by 49.4%, taper 52%, Heat Affected Zone (HAZ) 9.3% and kerf width 46.2%. As conclusion, this study had successfully proposed an improved optimization method for LBC process. Taguchi methods (Quality control) Quality control Statistical methods Laser beam cutting 0 0 lcc 0 1 20000 20000 2019-09-04 0 TS156 .K43 2011 rs Thesis 0000063474 2019-09-04 00:00:00 1 2019-09-04 THESIS 0 0 lcc 0 1 20000 20000 2019-09-04 0 CD 6000 | TS156 .K43 2011 rs Thesis 0000063475 2019-09-04 00:00:00 1 2019-09-04 THESIS VIRTUA40 3230 3236 VTLSSORT0080*0200*0400*0900*1000*2450*2600*3000*5020*5040*5200*6500*6501*6502*9992