High Frequency Welding – Trends and Applications

INTRODUCTION:
In this paper we present a mathematical model for the thermal process that relates the electric current in the weld “vee” to the resulting temperature distribution. The significant conclusion from this study is that the high frequency pipe and tube welding process has two distinct domains of operation, each with its own parameter relationships. The domain in which the process is operating for a given pipe or tube product and mill set-up is determined by mill speed and welding frequency

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