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008 191119t20192019my a|||fram|| 000 0 eng d
020 _aTHE0008440(Local)
_qhardback
040 _aUMP
_beng
_cUMP
_erda
090 _aFKM .L56 2019 r Thesis
100 0 _aLingenthiran Samylingam,
_eauthor.
245 1 0 _aModelling and verification of TiO2/ZnO/EGW nano coolant on the tin milling tool performance /
_cLingenthiran Samylingam
264 1 _aKuantan, Pahang :
_bUMP,
_c2019
264 4 _c© 2019
300 _axiv, 128 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 Engineering
502 _aThesis (Doctor of Philosophy in Mechanical Engineering) -- University Malaysia Pahang – 2019
504 _aIncludes bibliographical references
520 3 _aSurface roughness, tool life and wear mechanism plays major role for optimizing tool performance in machining process. Introducing nanoparticles into coolant has been proved to improve the optimization of the tool performance. This research has conducted to study the effect of nano particle based coolant (TiO2/EGW) and hybrid nano particle based coolant (TiO2/ZnO/EGW) on the Titanium Nitrate (TiN) tool enhancement. The linear model equation of surface roughness and tool life are developed using response surface methodology (RSM). From the RSM the most significant parameter is feed rate then axial depth of cut and lastly cutting speed. The end-milling operation by using hybrid nano particle based coolant (TiO2/ZnO/EGW) obtains lower surface roughness and high tool life. End-milling operation by using nano particle based coolant (TiO2/EGW) and water soluble coolant (EGW). Hybrid nano particle based coolant (TiO2/ZnO/EGW) lower the surface roughness 38% than EGW and 17% than TiO2/EGW. According to ISO 8688-2-1989 (E) the wear criteria for milling with water soluble coolant reached at average of cutting distance of 885 mm. Cutting distance for milling with nano particle based coolant (TiO2/EGW) performed better at distance of 55.55% to reach the wear criteria at average cutting distance of 1450 mm. Meanwhile for the cutting distance for milling with hybrid nano particle based coolant (TiO2/ZnO/EGW) perform better at 80% to reach the wear criteria at average cutting distance of 1585 mm. Hybrid nanofluid and single nanofluid’s thermal conductivity higher than EGW 13% and 11%.Hybrid nanofluid and single nanofluid specific heat capacity higher than EGW about 30% and 22%. The models between cutting parameters and response for surface roughness and tool life have been established. For surface roughness the error for the predicted value vs the actual value is 7%. Meanwhile for tool life the error for the predicted value vs the actual value is 11%. High cutting speed, low feed rate and low axial depth will provide fine surface roughness. Low cutting speed and Low feed rate will increase the tool life. The multi objective optimization for the parameters has been established. Where the optimum cutting speed= 2166 rpm, Feedrate = 0.02 mm/tooth and axial depth of cut = 0.1 mm which produces tool life = 37.07 min and surface roughness = 0.1452 μm. The desirability is nearly 1 (0.713), and it satisfy the goal of the optimization.
610 2 0 _aFaculty of Mechanical Engineering
_xDissertations
650 0 _aUniversities and colleges
_xDisertations
650 0 _aTheses
942 _2lcc
_cTHESIS