skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Energy Level Effects on Deformation Mechanism in Micro-scale Laser Peen Forming

Abstract

Laser micro-scale peen forming attracts more and more attention recently as one of laser processing technology because it not only imparts desirable residual stress into target to improve the fatigue life of the material but also precisely deforms the target. In the present study, energy level effects on deformation mechanism in laser micro-scale peen forming was investigated by both numerical and experimental methods. Deformation curvatures and residual stress distributions of both sides, characterized by x-ray microdiffraction, were compared with the results obtained from FEM simulation. Forming mechanism of convex and concave phenomena was explained in terms of the resulting pressure, compressive stress distribution, and plastic strain. Difference of residual stress distribution patterns was also studied from the point of view of forming mechanism.

Authors:
; ; ;
Publication Date:
Research Org.:
Brookhaven National Laboratory (BNL) National Synchrotron Light Source
Sponsoring Org.:
Doe - Office Of Science
OSTI Identifier:
960151
Report Number(s):
BNL-83137-2009-JA
TRN: US201016%%1295
DOE Contract Number:
DE-AC02-98CH10886
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Manufacturing Processes; Journal Volume: 9; Journal Issue: 1
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; DEFORMATION; DISTRIBUTION; ENERGY LEVELS; LASERS; PLASTICS; PROCESSING; SIMULATION; TARGETS; national synchrotron light source

Citation Formats

Wang,Y., Fan, Y., Vukelic, S., and Yao, Y. Energy Level Effects on Deformation Mechanism in Micro-scale Laser Peen Forming. United States: N. p., 2007. Web.
Wang,Y., Fan, Y., Vukelic, S., & Yao, Y. Energy Level Effects on Deformation Mechanism in Micro-scale Laser Peen Forming. United States.
Wang,Y., Fan, Y., Vukelic, S., and Yao, Y. Mon . "Energy Level Effects on Deformation Mechanism in Micro-scale Laser Peen Forming". United States. doi:.
@article{osti_960151,
title = {Energy Level Effects on Deformation Mechanism in Micro-scale Laser Peen Forming},
author = {Wang,Y. and Fan, Y. and Vukelic, S. and Yao, Y.},
abstractNote = {Laser micro-scale peen forming attracts more and more attention recently as one of laser processing technology because it not only imparts desirable residual stress into target to improve the fatigue life of the material but also precisely deforms the target. In the present study, energy level effects on deformation mechanism in laser micro-scale peen forming was investigated by both numerical and experimental methods. Deformation curvatures and residual stress distributions of both sides, characterized by x-ray microdiffraction, were compared with the results obtained from FEM simulation. Forming mechanism of convex and concave phenomena was explained in terms of the resulting pressure, compressive stress distribution, and plastic strain. Difference of residual stress distribution patterns was also studied from the point of view of forming mechanism.},
doi = {},
journal = {Journal of Manufacturing Processes},
number = 1,
volume = 9,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 2007},
month = {Mon Jan 01 00:00:00 EST 2007}
}