Resistance Welding Program Functions : LUSENET : Resistance Welding : One Thread

Could you please explain the differences between the functions of PREHEAT; WELD; TEMPER; and QUENCH. Is there actually a difference between these functions or are they just a descriptive tag for understanding the program?

- Mike Card

-- Mike Card (, November 29, 2004


Hi Mike- These are all terms associated with older technology AC welders: PREHEAT - Raises the temp of workpiece which seats the part and stabilizes the workpiece before WELD. WELD - Does the bulk of the heating, turns solid metal to plastic/liquid state. QUENCH/TEMPER - Controls grain refinement in refractory metals. Heat treated (annealed) parts can often be brittle if this is not used.

Hope this helps! Kurt Tolliver kurt(@)

-- Kurt Tolliver (, December 02, 2004.

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