Automotive Industry
Industry: Email Alert RSS FeedWelding processes.(News)(Brief Article)
Automotive News Europe, August, 2004
Resistance: High electrical surge melts materials in discrete spots. Dominant technology in automotive assembly. Advantages: Rapid cycle time, technology and industrialized. Disadvantages: Weak and non-uniform bond; high energy use; high maintenance costs, downtime; requires cooldown time; high heat weakens physical properties of material welded; welds in castings can be porous.
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Ultrasonic: High-frequency vibration bonds materials at molecular level. Advantages: Strong, virtually invisible spot weld; no degradation of physical properties of material welded; lower energy use and ...
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