Modeling and Simulation of a Laser Deposition Process

reportActive / Technical Report | Accession Number: ADA516919 | Open PDF

Abstract:

A laser deposition process involves the supply of metallic powders into a laser-heated spot where the powder is melted and forms a melt puddle which quickly solidifies into a bead. In order to design an effective system, the laser beam, the powder beam, and their interactions need to be fully understood. In this paper, the laser-material interaction within the melt pool is reported using a multi-scale model a macroscopic model to model mass, heat, and momentum transfer. Experiments were also conducted to validate the simulation model.

Author(s):
Liou, Frank ; Fan, Zhiqiang ; Pan, Heng ; Slattery, Kevin ; Kinsella, Mary ; Newkirk, Joseph ; Chou, Hsin-nan
Author Organization(s):
MISSOURI UNIV-ROLLA
Descriptive Note:
Conference paper
Supplementary Note:
See also ADM002161. Presented at the Symposium on Solid Freeform Fabrication (SFF)(18th) held in Austin, TX on 6-8 August 2007. Published in the Proceedings on Solid Freeform Fabrication (SFF) (18th), p212-223, 2007. U.S. Government or Federal Rights License. The original document contains color images.
Pagination:
0013

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Contract/Grant Number(s):
FA8650-04-C-5704, NSF-DMI-9871185
Monitor Series:
AFRL
 Subject Terms
Joint Capability Areas:
JCA_1.2.7_Experimentation; JCA_5_Command and Control
Communities of Interest:
Energy and Power Technologies
Descriptor(s):
*POWDER METALS, *COMPUTERIZED SIMULATION, *MODELS, *DEPOSITION, *LASER BEAMS, POWDERS, MASS, LASERS, HEATING, SUPPLIES, MATERIALS, INTERACTIONS, SYMPOSIA, REPRINTS, MOMENTUM TRANSFER, SIMULATION
Field(s)/Group(s):
Industrial Chemistry and Chemical Processing, Physical Chemistry, Lasers and Masers, Fabrication Metallurgy, Numerical Mathematics, Computer Programming and Software, Thermodynamics
Keyword(s):
*LASER DEPOSITION, MELT PUDDLES, *DLD(DIRECT LASER DEPOSITION), MELT POOLS, BEADS(WELDING)
Report Date:
2007 Sep 04
Creation Date:
2010 Apr 14