Types of Seam Welding

Types of Seam Welding Points : Types of Seam Welding, Lap Seam Weld, Mash Seam Weld, Butt Seam Weld The important types of seam welds are:
1. Lap Seam Weld
2. Mash Seam Weld
3. Butt Seam Weld 1. Lap Seam Weld Lap seam welding are intended by a high-speed joining method suitable for various steel types and analyses, with uncoated medium-carbon, low-carbon, silicon and ferritic stainless, also as steels by covering of chrome, tin, paint, aluminum, zinc and lead. For those alloys that are matter to embrittlement below quick heating and cooling, and which reply to post-weld tempering, a Taylor-Winfield induction post-heating position can be furnished with included by the joining equipment. 2. Mash Seam Weld Mash seam welding method with equipment, where two plate-like work-pieces have dissimilar thickness values are fed with guide by a guiding mechanism such that a length WH of contact of thick plate similar to work-piece by one of two roller electrodes is lesser than a length WM of contact of thin plate similar to work-piece by the other roller electrode. In this deal, the quantity of mashing of thick plate-like work-piece through the roller electrode is prepared larger than that of thin plate-like work-piece by other roller electrode, so that an edge of the two plate-like work-pieces is located middle among the pair of roller electrodes, whereby a weld piece produced intermediate among the roller electrodes expand across the edge, permit the weld to contain a enough strength due to a nugget ratio. 3. Butt Seam Weld Butt Seam welding kind of resistance welding used for joining the edges of sheets in butt joint, use mostly in manufacture of welded pipe. Metal in weld region is heated through an electric current in resistance pipe-welding machines; with butt joint is then press through steel rollers. By steel pipe of small length the stock is first heated in a gas-fired furnace with formed into pipe; the along seam is welded through drawing during a mandrel rod at speed able to 1,200 m per minute. Such units can make up to 70 km of welded pipe per hour.