Paper Title:
Effect of Laser Process Parameters on the Surface Absorbtivity
  Abstract

Hardening laser surface offers new possibilities for the enhancement of the mechanical resistance of superficial layers. Essential for the laser treatment processes is the efficiency at which the incident laser power is coupled into the work piece. The aim of the work was to study the effect of some factors such as spot shape, beam angle of incidence and surface coating on the steel surface absorptivity. Samples made of carbon steel were laser processed using a CW CO2 - 1,2 kW laser unit. Different process parameters (beam power, spot dimension and traverse speed), were used. The microstructure of laser hardened layers which have been investigated by optical microscopy. The mechanical characterization of the layers has been done by hardness measurements. Correlation has been established between the structure of the laser-processed layers and the process parameters.

  Info
Periodical
Materials Science Forum (Volumes 480-481)
Edited by
A. Méndez-Vilas
Pages
207-212
DOI
10.4028/www.scientific.net/MSF.480-481.207
Citation
G. Demian, M. Taca, I. Gutu, M. Demian, "Effect of Laser Process Parameters on the Surface Absorbtivity", Materials Science Forum, Vols. 480-481, pp. 207-212, 2005
Online since
March 2005
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Sen Yang, Hiroyuki Kokawa, Zhan Jie Wang
Abstract:In order to modify grain boundary character distribution (GBCD) and to improve intergranualr corrosion (IGC) resistance of 304 stainless...
2473
Authors: Eneko Ukar, Aitzol Lamikiz, Luis Norberto López de Lacalle, F. Liebana, J.M. Etayo, D. del Pozo
Abstract:The presented article proposes a laser based polishing operation which consists in the application of a laser beam in a very controlled way....
818
Authors: Mehdi Soodi, Milan Brandt, Syed H. Masood
Abstract:This paper presents an investigation on the microstructure and surface hardness of the parts fabricated by laser assisted Direct Metal...
648
Authors: Gui Jie Liu, Xin Wang, An Jin Li
Abstract:In offshore jacket platforms, the structural steels are widely used and usually welded connected. This paper presents the welding of 45#...
263
Authors: Eneko Ukar, Aitzol Lamikiz, S. Martínez, Luis Norberto López de Lacalle
Abstract:In laser surface treatment the laser beam is used as energy source for surface modification improving aspects such as mechanical properties,...
127