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  • Welding
    by applying heat and pressure. The temperature is usually below the melting point of the materials joined. Hot-press, ultrasonic, diffusion, and explosive welding are examples of solid-state welding. Fusion welding methods, chiefly gas, arc, and resistance, are the most widely used and are less restrictive
  • Welding with light
    Laser-transmission welding rapidly joins thermoplastic parts without vibration or excess heat. By Val A. Kagan Robert Bray Welded assemblies made from fiberglass-filled and unfilled nylon 6 thermoplastic serve in a variety of automotive under-the-hood applications including intake manifolds, air
  • The Friction Welding Advantage
    parts. Uncompromised Weld Strength The friction welding process creates a full-surface weld made of an entirely new material composed of the two original materials. An air-tight weld is made across 100% of the cross section, eliminating the risk of porosity, voids, leaks or cracks. Friction welds have
  • Steels for Strength
    provide excellent hardenability in thick sections. of the 5% Cr, 1% Mo, 1% V hot-work die-steel variety (H11 modified, H13) provide the next step in increased hardenability and greater strength. Most steels in this group are air hardened in moderate to large sections and, therefore, are not likely
  • Copper
    alloy color. An acrylic coating with benzotriazole as an additive lasts several years under most outdoor, abrasion-free conditions. Although they work harden, copper and its alloys can be hot or cold worked. Ductility can be restored by annealing or heating incident to welding or brazing operations
    miniature hand extruder contains a plasticizing unit, hot-air blower, rod feed, and electronics in one package. The compact tool from the Swiss firm Leister Process Technologies and distributed in the U.S. by Uneco Systems Inc., Romeoville, Ill., requires no additional booster and weighs only 2.8 kg

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