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  2. Electrofusion welding - Wikipedia

    en.wikipedia.org/wiki/Electrofusion_Welding

    It is most commonly used to join polyethylene (PE) and polypropylene (PP) pipes. Electrofusion welding is the most common welding technique for joining PE pipes. [1] Because of the consistency of the electrofusion welding process in creating strong joints, it is commonly employed for the construction and repair of gas-carrying pipelines. [2]

  3. List of welding processes - Wikipedia

    en.wikipedia.org/wiki/List_of_welding_processes

    Laser-hybrid welding: Combines LBW with GMAW in the same welding head, able to bridge gaps up to 2mm (between plates), previously not possible with LBW alone. Automotive, Shipbuilding, Steelwork industries Percussion welding: 77: PEW Following an electrical discharge, pressure is applied which forges the materials together Components of switch ...

  4. Electrofusion - Wikipedia

    en.wikipedia.org/wiki/Electrofusion

    Electrofusion is a method of joining MDPE, HDPE and other plastic pipes using special fittings that have built-in electric heating elements which are used to weld the joint together. The pipes to be joined are cleaned, inserted into the electrofusion fitting and then alignment clamps and a voltage (typically 40V) is applied for a fixed time ...

  5. Heat fusion - Wikipedia

    en.wikipedia.org/wiki/Heat_fusion

    HDPE pipe fusion. Heat fusion (sometimes called heat welding, butt welding or simply fusion) is a welding process used to join two different pieces of a thermoplastic. This process involves heating both pieces simultaneously and pressing them together. The two pieces then cool together and form a permanent bond.

  6. Oxy-fuel welding and cutting - Wikipedia

    en.wikipedia.org/wiki/Oxy-fuel_welding_and_cutting

    A welding feather is measured as 2X or 3X, with X being the length of the inner flame cone. The unburned carbon insulates the flame and drops the temperature to approximately 5,000 °F (2,760 °C). The reducing flame is typically used for hardfacing operations or backhand pipe welding techniques. The feather is caused by incomplete combustion ...

  7. Pipe Mania - Wikipedia

    en.wikipedia.org/wiki/Pipe_Mania

    Pipe Mania is a puzzle video game developed by The Assembly Line for the Amiga and published in 1989. It was ported to several other platforms by Lucasfilm Games as Pipe Dream; the company distributed the game in the US. The player must connect randomly appearing pieces of pipe on a grid to a given length within a limited time.

  8. Electric resistance welding - Wikipedia

    en.wikipedia.org/wiki/Electric_resistance_welding

    Spot welding is a resistance welding method used to join two or more overlapping metal sheets, studs, projections, electrical wiring hangers, some heat exchanger fins, and some tubing. Usually power sources and welding equipment are sized to the specific thickness and material being welded together.

  9. Fillet weld - Wikipedia

    en.wikipedia.org/wiki/Fillet_weld

    The root of the weld is the part of deepest penetration which is the opposite angle of the hypotenuse. The toes of the weld are essentially the edges or the points of the hypotenuse. The face of the weld is the outer visual or hypotenuse that you see when looking at a fillet weld. The legs are the other two sides of the triangular fillet weld.