01776nam a2200217 a 4500001001400000003000700014005001700021008004100038020002200079040000800101100001900109245009700128260003400225300004500259502012300304504003000427520102000457650003401477650002301511650002401534vtls000045840KUKTEM20251114204426.0100518t2009    my a   f m    000 0 engrd  aTHE0007475(Local)  aUMP1 aToh, Ban Sheng10aReverse engineering of mobile phone casing and analysis of weld-line defect /cToh Ban Sheng  aKuantan, Pahang :bUMP,c2009  axvi, 54 p. :bill. ;c30 cm. +e1 CD-ROM  aProject paper (Bachelor of Mechanical Engineering with Manufacturing Engineering) -- Universiti Malaysia Pahang - 2009  aBibliography : p. [40]-423 aIn recent decades, reverse engineering (RE) has gradually become important when it comes to the situation that a component must be reproduced but its original engineering data are no longer or not accessible. Sophisticated technologies are introduced for the purpose of reverse engineering. The state-of-the-art technology in latest days is the use of 3D laser scanning with aid of reverse-engineering software to create the 3D geometry model of the existing component. The most appropriate way to duplicate the component is by plastic injection moulding. However, defect such as weld lines always occur during injection moulding process which makes the component aesthetically and structurally unacceptable. Therefore, injection moulding simulation on the component is necessary to investigate the variables that affect the formation of weld lines. Simulations are repetitively done to determine the most optimal variables that remove or reduce weld lines to minimum before the component is ready for reproduction. 0aInjection molding of plastics 0aPlasticsxMoulding 0aReverse engineering