MODERN WELDING
WELDING IS THE PROCESS OF UNITING TWO METALS BY ELIMINATING THE INTERFACE BETWEEN THEM. TRADITIONALLY, THIS HAS BEEN DONE BY A CASTING OPERATION, WITH FILLER METAL POURED INTO THE JOINT. FUSION WELDING STILL BULKS LARGE TODAY, BUT ADDED TO THE CONVENTIONAL ELECTRIC ARC THERE ARE NOW PLASMA ARCS, RESISTIVE SLAGS, AND HIGH-ENERGY BEAMS. MOREOVER, SO-CALLED SOLID-STATE WELDING, HIGH-FREQUENCY WELDING IN WHICH THE METAL PIECES ARE HEATED TO A PLASTIC (BUT STILL SOLID) STATE, THEN SQUEEZED TOGETHER. ANOTHER SOLID-STATE WELDING METHOD IS FRICTION WELDING IN WHICH TWO SURFACES TO BE JOINED ARE RUBBED RAPIDLY TOGETHER AND UNDER CONSIDERABLE PRESSURE. THE FRICTION BETWEEN THEM GENERATES THE NECESSARY TEMPERATURE FOR WELDING. PRESSURE BONDING AND EXPLOSIVE JOINING MAY ALSO BE USED.
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Supplemental Notes:
- No 66, pp 22-34, 2 FIG, 10 PHOT
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Authors:
- Martin, D C
- Publication Date: 1967-6
Media Info
Subject/Index Terms
- TRT Terms: Beams; Electric arc welding; Electromagnetic radiation; Energy levels; Explosives; Friction; Fusion; Pressure; Reviews; Solid state devices; Weld metal; Welding
- Uncontrolled Terms: Fusion welding
- Old TRIS Terms: High energy rate; Solid state
- Subject Areas: Energy; Geotechnology; Highways; Materials;
Filing Info
- Accession Number: 00216202
- Record Type: Publication
- Files: TRIS
- Created Date: Jan 16 1994 12:00AM