000			03936ntm a2200361 i 4500
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006			t||||fr|||| 000 0
008			220308s2020 my a|||fr|||| 000 0 eng d
020			_aTHE0009138(Local) _qhardback
040			_aUMP _beng _cUMP _erda
090			_aFTKMA .H57 2020 r Thesis
100	1		_aMuhammad Abdul Hisyam Abu Hassan, _eauthor.
245	0	4	_aThe effect of equal channel angular pressing process on aluminium alloy studied using simulation and experimental / _cMuhammad Abdul Hisyam Abu Hassan
264		1	_aKuantan, Pahang : _bUMP, _c2020
264		4	_c© 2020
300			_axiv, 81 pages : _billustrations (some color) ; _c30 cm. + _e1 CD ROM
336			_atext _2rdacontent
336			_atext _2rdacontent
337			_aunmediated _2rdamedia
337			_acomputer _2rdamedia
338			_avolume _2rdacarrier
338			_acomputer disc _2rdacarrier
347			_atext file _bPDF _2rda
500			_aFaculty of Mechanical and Automotive Engineering Technology
502			_aThesis (Master of Science) -- Universiti Malaysia Pahang – 2020
504			_aIncludes bibliographical references
520	3		_aEqual Channel Angular Pressing (ECAP) process is one of the metals forming processes that involve severe plastic deformation obtained from the strain. This research is to study the strain behavior of ECAP process on the Aluminum Alloy 6061 (AA 6061) sample by simulation analysis and experimental analysis. The main objective for this research is to analyze the effect of angular channel of ECAP die which are 120° and 126° to the behavior of the AA 6061 sample during the pressing process. The analyzation is done on eight passes of Abaqus simulation and one pass of experimental conduct which will be compared to both die channel and between experimental and simulation. The microstructure and hardness test are done on the ECAP-ed sample from experimental for further analyzation. The simulation result showed that the equivalent plastic strain is decreasing rapidly from the first pass until the fourth pass for ECAP-ed sample of 120° but maintained its value from fifth to eighth pass where the sample strength has increased; it prevented the sample to pass through the channel outlet. ECAP-ed sample from 126° however showed slow and smooth decrease of equivalent plastic strain and can pass through the channel outlet throughout the pressing process. The strain showed that it moved from the outside sample and toward the middle sample during the pressing process. The final equivalent plastic strain recorded for 120° die is 1.27% while the strain recorded for 126° is 0.99%. Experimental analysis showed that ECAP-ed sample from 126° die channel can pass through more of its section compared to 120° ECAP-ed sample. Microstructural analysis showed that ECAP-ed sample grain size has been elongated, decreased in sizes as and increased in number of precipitates even for a single pass which 120° ECAP-ed sample has more refined microstructure compared to 126° ECAP-ed sample. The Vickers Hardness analysis showed that the Vickers Hardness for 120° ECAP-ed sample showed an increase of 43.64% while for 126° ECAP-ed sample has an increase of hardness of 40.14%. The result from the simulation of the first pass validated the experimental analysis. In conclusion, ECAP process does increase the quality of the sample in terms of hardness and microstructure refinement and 126° die has more homogenous strain value and easier to press compared to 120° die by increasing the number of ECAP pass.
610	2	0	_aFaculty of Mechanical and Automotive Engineering Technology _xDissertations
650		0	_aUniversities and colleges _xDissertations
650		0	_aTheses
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