000			03153nmm a2200313 a 4500
001			vtls000098406
003			KUKTEM
005			20251117113324.0
008			161213s2016 my fq d 001 0 eng|d
020			_aTHE0005095(Local)
039		9	_a201905131452 _bhanafiah _c201712150937 _dfateeha _c201612131540 _dsaini _y201612131539 _zsaini
040			_aUMP
090			_aFKP .S54 2016 r Bc.
090			_aCD 10424
100	1		_aShea, Cheng Kuang
245	1	0	_aDieless incremental forming using 3-axis CNC milling machine for aluminium sheet _h[electronic resource] / _cShea Cheng Kuang
260			_aKuantan, Pahang : _bUMP, _c2016
300			_a1 computer disc : _bdigital data ; _c12 cm.
500			_aFaculty of Manufacturing Engineering
500			_aTheses Gred A
502			_aProject Paper (Bachelor of Engineering in Manufacturing Engineering (Hons.)) -- Universiti Malaysia Pahang – 2016
520	3		_aIncremental sheet forming is a versatile sheet metal forming process where a sheet metal is formed into its final shape by a series of localized deformation without a specialised die. However, it still has many shortcomings that need to be overcome such as geometric accuracy, surface roughness, formability, forming speed, and so on. This project focus on minimising the surface roughness of aluminium sheet and improving its thickness uniformity in incremental sheet forming via optimisation of wall angle, feed rate, and step size. Besides, the effect of wall angle, feed rate, and step size to the surface roughness and thickness uniformity of aluminium sheet was investigated in this project. First of all, part design and tool path generation were done in CATIA software to form the shape of pyramid frustum. Then, the blank holder and the forming tool made of mild steel were fabricated afterwards. Through the selected design of experiments, the incremental sheet forming experiments were carried out on a 3-axis CNC milling machine. From the results, it was observed that surface roughness and thickness uniformity were inversely varied due to the formation of surface waviness. Increase in feed rate and decrease in step size will produce a lower surface roughness, while uniform thickness reduction was obtained by reducing the wall angle and step size. By using Taguchi analysis, the optimum parameters for minimum surface roughness and uniform thickness reduction of aluminium sheet were determined. Meanwhile, analysis of variance concluded that step size is the most significant parameter to both the surface roughness and thickness uniformity of aluminium sheet in incremental sheet forming. The finding of this project helps to reduce the time in optimising the surface roughness and thickness uniformity in incremental sheet forming.
538			_aItem in PDF format
610	2	0	_aFaculty of Manufacturing Engineering _xDissertations
650		0	_aUniversities and Colleges _xDissertations
650		0	_aTheses
856	4	0	_uhttp://ecollib.ump.edu.my/id/eprint/3973 _zAccess in library only
999			_aVIRTUA40 _c6704 _d6710
999			_aVTLSSORT0080*0200*0400*0900*0901*1000*2450*2600*3000*5000*5001*5020*5200*5380*6100*6500*6501*8560*9992