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Analysis of CD Stud Welding Process and Defects Part 1: Process Modeling and Analysis  

Oh Hyun-Seok (Hyundai MOBIS Technology Research Institute)
Yoo Choong-D. (Dept. of Mech. Eng., KAIST)
Publication Information
Journal of Welding and Joining / v.24, no.3, 2006 , pp. 34-41 More about this Journal
Abstract
The CD (Capacitor Discharge) stud welding utilizes the arc heat and pressure to attach the stud to the workpiece, which consists of the arc. ignition, arcing and pressure welding stages. In order to predict the dynamic behavior of the CD stud welding process, mechanical and electrical models are employed in this work. While the mechanical model estimates the duration of each stage, the electrical model predicts the voltage and current waveforms using the RLC circuit. Effects of process parameters such as the electric components and spring force are analyzed through simulation. It is found that the contact resistance and gap between the stud and base metal influence the tip fusing and arcing duration. The calculated results showed reasonably good agreements with the experiment results.
Keywords
CD stud welding; Mechanical and elecctrical modeling; RLC circuit;
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  • Reference
1 ASM Handbook Committee: ASM Handbook. Vol. 6. 1993. 221-222
2 S. Venkataraman, J. H. Devletian: Rapid Solidification of Stainless Steels by Capacitor Discharge Welding, Welding J., 67-6 (1998), 111s-118s   DOI
3 R. D. Wilson: Explore the Potential of Capacitor- Discharge Welding, Advanced Materials & Processes, 145-6 (1994), 94-95
4 AWS: Welding Handbook. Vol. 2. 1991. 299-327
5 R. D. Wilson, J. R. Woodyard, J. H. Devletian: Capacitor Discharge Welding: Analysis through Ultrahigh-Speed Photography, Welding J., 72-3 (1993), 101s-106s
6 J. H. Davis: Metals Handbook, Vol. 1. 1990, 196-199
7 S. Ping, W. Xu: Simulation Study on Capacitor Discharge Percussion Welding, Chinese Journal of Mechanical Engineering, 10-4 (1997), 295-298
8 J. W. Simmons, R. D. Wilson: Joining of HighNitrogen Stainless Steel by Capacitor Discharge Welding, Welding J., 75-6 (1996), 185s-190s
9 R. D. Wilson, J. A. Hawk: Rapid Solidification Joining Using the Capacitor Discharge Welding Process, Metallurgical Processes for Early Twenty-First Century, 2 (1994), 267-282
10 B. K Paul, R. D. Wilson, E. McDowell, J. Benjarattananon: Study of Weld Strength Variability for Capacitor Discharge Welding Process Automation, Science and Technology of Welding and Joining, 6-2 (2000), 109-115
11 R. S. Hixon, M A Winkler, M L. Hodgdon: Sound Speed and Thermophysical Properties of Liquid Iron and Nickel. Physical Review B, 42-10 (1990), 6485-6491   DOI