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  • When Brazing Beats Welding
    Brazing is an economical method for making strong, permanent metal joints. Compared with welding, brazing requires relatively low temperatures, is readily automated, and can join dissimilar metals. Brazing filler materials come in a wide range of compositions, shapes, and sizes to suit most
  • 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
  • New "window " of opportunity for e-beam welding
    Window. Beam temperatures exceeding 10,000 C produce the brilliant, blue-white light. The beam source is about 3-ft high and 15 in. in diameter so it is able to mount on a robot arm or be fitted to multiaxis NC machinery. Besides welding, the same system will be capable of drilling small holes
  • Welding Options For Molded Parts
    Select the right welding system when joining rotationally molded parts. Edited by Jean M. Hoffman The Injectiweld system is said to be the only welding unit to make a permanent repair on rotomolded parts. Its heated aluminum tip, molten welding rod, and piston injection give the right temperature
  • Laser Welding of Thermoplastics
    industries worldwide. Consequently, development of plastics joining (welding) technology has assumed great importance for further advancement in industries like the car manufacturing, telecommunication, construction, medical technology and others where there is ever expanding use of different types
  • Low Transformation Temperature (LTT) Welding Consumables for Residual Stress Management
    . temperature. This harmful stress makes the welded joints more prone to fa-. tigue failure. The use of low-transformation-temperature welding (LTTW). wires, producing martensitic transformation close to room temperature,. was validated as a technique to manage the residual stresses and improve
  • How Hot Plate Welding Works
    Hot plate welding utilizes a temperature controlled heat platen assembly, which is introduced between the two parts to be assembled. All items are brought together, and the melting cycle is started. The parts are melted for a pre-set time to displace enough plastic for surface preparation
  • Thermography Enhances the Capabilities of Laser Transmission Welding (.pdf)
    the temperature distribution within the surface of a welded polymer. Variations of the laser beam intensity distribution are altering the temperature field. An analysis of the temperature-time-flow within the welding zone provides information with respect to the welding properties.
  • Laser Welding Creates Potential for Small Parts Applications
    is delivered through an optical fiber and focusing lens onto the workpiece. Welding is the process that occurs when laser radiation is absorbed by the workpiece and turned into heat raising the temperature in the localized area above the melting point. Movement of the worktable is controlled by CNC in order
  • The Influence of Water Temperature & Flow on Resistance Welding Electrode Life
    Many studies have been made to determine the best copper alloys for producing high-quality welds and long life when resistance welding steel, particularly galvanized metal. New electrode designs that use unique geometry have been developed to accomplish the same results. Many control designs can

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  • Mathematical modelling of weld phenomena 6
    In the weld seam area with high welding temperatures (T ~ 600�C for steel) the elastic modulus and the yield limit are set to zero.
  • Mathematical Modelling of Weld Phenomena 5
    The whole calculated welding temperature history stored in the computer memory in the form of a database enables the complete heating and cooling cycle together with the peak temperature to be evaluated for each node.
  • Mathematical modelling of weld phenomena 3
    C. CHEN, J. WANG and H. YANG: 'Non-linear FEA on Welding Temperature Field', Trans.
  • Creep & Fracture in High Temperature Components
    The principal result of the lower carbon contents in T23 and T24 is that the as cooled hardness, either from normalising and/or welding temperatures , of the martensite and/or bainite is reduced.
  • Weld Integrity and Performance
    In weld- ing of heat-resisting alloys, precipitation of car- bide particles at the interface at welding tempera- ture can be prevented by increasing the amount of upset.
  • Welding Metallurgy and Weldability of Nickel-Base Alloys
    However, Owczarski et al.(37) showed that solution treated Udimet 700 base metal has lower ductil- ity at welding temperatures compared with the fully aged alloy, suggesting that solution annealing prior to welding is not appropriate for this alloy.