Beam layout welding does not only require manual welding. In fact, an H beam fabrication or machine can be used to fabricate multiple H beams at once. This machine can be used to feed long uncut plates. Additionally, the machine handles the welding of each plate in order to reach the client's desired design.
The gantry frame is made up of the walking beams and columns as well as the upper platform. Each walking beam is driven by a motor reduction, which creates a dual-drive system. It makes the operation reliable and smooth. There are rails or racks on the platform that can be used as a support for the welding arms and tool carriages. The platform can accommodate two sets each of flux recovery machines and wires.
The tacking fixture can be used to assemble the beam before it is sent to the Main welder. The web is brought in from the seam welded and flange storage racks. They are then moved to the tacking fixture where they are placed before tacking the beam's leading edge. A manual operator can load the flanges on conveyors, or an automated process using PHI’s flange-loading Gantry.
Each section of conveyor has a maximum load capacity of 4,000 lbs. Conveyor speeds and welder input speeds are synced to reduce conveyor wear due to friction between the turning roll and the slower-moving beam near the welder entrance.
Beam layout welding, as well as fabrication machines, are auxiliary equipment. As such, their weight is too much for regular workers to carry. For those who don't know, electron beam welding is a method of welding where electrons are generated at high speeds by the use of electric field.
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A typical Beam Layout welding system has 18 conveyor sections. Six motorized sections drive the rollers via sprockets, chains and other means. Ten motorized sections can be connected to each other by connecting chains. Two remain idle.
A welded beam consists of three individual sections of steel – a web, a top flange and a bottom flange. These segments are merged together with deep fillet welds to create an incredibly robust building material.