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  2. List of welding processes - Wikipedia

    en.wikipedia.org/wiki/List_of_welding_processes

    This is a list of welding processes, separated into their respective categories. The associated N reference numbers (second column) are specified in ISO 4063 (in the European Union published as EN ISO 4063 ). [ 1 ]

  3. Do it yourself - Wikipedia

    en.wikipedia.org/wiki/Do_it_yourself

    The phrase "do it yourself" had come into common usage (in standard English) by the 1950s, [4] in reference to the emergence of a trend of people undertaking home improvement and various other small craft and construction projects as both a creative-recreational and cost-saving activity.

  4. eBay - Wikipedia

    en.wikipedia.org/wiki/EBay

    The monthly price increase from $30 to $250 prompted Omidyar to start charging eBay users. The website made $1,000 in its first month, which was more than it cost to run, and $2,500 in its second month. [2] Chris Agarpao was eBay's first employee; he processed mailed check payments. [4]

  5. Welding - Wikipedia

    en.wikipedia.org/wiki/Welding

    The cost of materials includes the cost of the base and filler material, and the cost of shielding gases. Finally, energy cost depends on arc time and welding power demand. [92] For manual welding methods, labor costs generally make up the vast majority of the total cost. As a result, many cost-saving measures are focused on minimizing ...

  6. Electron-beam welding - Wikipedia

    en.wikipedia.org/wiki/Electron-beam_welding

    Electron-beam welding (EBW) is a fusion welding process in which a beam of high-velocity electrons is applied to two materials to be joined. The workpieces melt and flow together as the kinetic energy of the electrons is transformed into heat upon impact.

  7. Friction welding - Wikipedia

    en.wikipedia.org/wiki/Friction_welding

    Friction welding (FWR) is a solid-state welding and bonding process that generates heat through mechanical friction between workpieces in relative motion to one another. The process is used with the addition of a lateral force called "upset" to plastically displace and fuse the materials. [1]

  8. Radio-frequency welding - Wikipedia

    en.wikipedia.org/wiki/Radio-frequency_welding

    Radio-frequency welding, also known as dielectric welding and high-frequency welding, is a plastic welding process that utilizes high-frequency electric fields to induce heating and melting of thermoplastic base materials. [1] The electric field is applied by a pair of electrodes after the parts being joined are clamped together.

  9. Oxy-fuel welding and cutting - Wikipedia

    en.wikipedia.org/wiki/Oxy-fuel_welding_and_cutting

    Oxygas welding station (keep cylinders and hoses away from the flame) Gas welding/cutting goggles and safety helmet. Oxyacetylene welding/cutting is generally considered not to be difficult, but there are a good number of subtle safety points that should be learned such as: More than 1/7 the capacity of the cylinder should not be used per hour.