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Laser melting of a moving slab in re...

Momin, Omeir.

Laser melting of a moving slab in relation to surface treatment application.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Laser melting of a moving slab in relation to surface treatment application./
作者:	Momin, Omeir.
面頁冊數:	133 p.
附註:	Source: Masters Abstracts International, Volume: 50-01, page: 0597.
Contained By:	Masters Abstracts International50-01.
標題:	Engineering, Mechanical. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1496537
ISBN:	9781124758701

Laser melting of a moving slab in relation to surface treatment application.
Momin, Omeir.

Laser melting of a moving slab in relation to surface treatment application. - 133 p.

Source: Masters Abstracts International, Volume: 50-01, page: 0597.

Thesis (M.S.)--King Fahd University of Petroleum and Minerals (Saudi Arabia), 2011.

Laser surface treatment process, in general, is involved with conduction heating, melting, and superheating in melt phase. In order to gain an understanding of the physical phenomena taking place during laser heating of a workpiece, experimentation and modeling of the process is necessary. During laser heating, the laser beam moves/scans the workpiece surface with a constant velocity. The laser is pulsating and the intensity is a function of time. In this work, the enthalpy-porosity technique is used to model the melting/solidification process. In the simulations, different metals such as steel and titanium are used as workpiece materials. The temperature and velocity fields generated due to the laser heating are presented. The effect of various parameters is investigated. It is shown that with increasing pulse parameter the melt pool becomes wide and shallow and increasing scanning velocity increases asymmetry. The thermal stress field and residual stresses due to laser heating have also been investigated.

ISBN: 9781124758701Subjects--Topical Terms:

845387
Engineering, Mechanical.

Laser melting of a moving slab in relation to surface treatment application.
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245 1 0 $a Laser melting of a moving slab in relation to surface treatment application.
300 $a 133 p.
500 $a Source: Masters Abstracts International, Volume: 50-01, page: 0597.
500 $a Adviser: S. Z. Shuja.
502 $a Thesis (M.S.)--King Fahd University of Petroleum and Minerals (Saudi Arabia), 2011.
520 $a Laser surface treatment process, in general, is involved with conduction heating, melting, and superheating in melt phase. In order to gain an understanding of the physical phenomena taking place during laser heating of a workpiece, experimentation and modeling of the process is necessary. During laser heating, the laser beam moves/scans the workpiece surface with a constant velocity. The laser is pulsating and the intensity is a function of time. In this work, the enthalpy-porosity technique is used to model the melting/solidification process. In the simulations, different metals such as steel and titanium are used as workpiece materials. The temperature and velocity fields generated due to the laser heating are presented. The effect of various parameters is investigated. It is shown that with increasing pulse parameter the melt pool becomes wide and shallow and increasing scanning velocity increases asymmetry. The thermal stress field and residual stresses due to laser heating have also been investigated.
590 $a School code: 1088.
650 4 $a Engineering, Mechanical. $3 845387
690 $a 0548
710 2 $a King Fahd University of Petroleum and Minerals (Saudi Arabia). $b Mechanical Engineering Department. $3 845639
773 0 $t Masters Abstracts International $g 50-01.
790 1 0 $a Shuja, S. Z., $e advisor
790 $a 1088
791 $a M.S.
792 $a 2011
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1496537

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