Set up an Arc Welding Code with Enthalpy Method in Upwind Scheme
- Department of Mechanical Engineering, National Ilan University, Ilan, Taiwan (China)
In this study, a numerical code with enthalpy method in upwind scheme is proposed to estimate the distribution of thermal stress in the molten pool, which is primarily determined by the type of the input power and travel speed of heating source. To predict the cracker deficit inside the workpiece, a simulated program satisfying the diagonal domination and Scarborough criterion provides a stable iteration. Meantime, an experimental performance, operated by robot arm 'DR-400' to provide a steady and continuous arc welding, was also conducted to verify the simulated result. By surveying the consistence of molten pool bounded by contrast shade and simulated melting contour on the surface of workpiece, the validity of model proposed to predict the thermal cracker has been successfully identified.
- OSTI ID:
- 21361948
- Journal Information:
- AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1233; ISSN APCPCS; ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ALGEBRA
ARC WELDING
COMPUTERIZED SIMULATION
ENTHALPY
EQUIPMENT
FABRICATION
HEATING
JOINING
MATHEMATICS
MELTING
NUMERICAL ANALYSIS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
ROBOTS
SIMULATION
STRESSES
THERMAL STRESSES
THERMODYNAMIC PROPERTIES
WELDING