Metal Fabrication is a process that involves Lasers, Turrets, Burn Tables and Press Brakes. SJS Products, a Jamcor Corporation's fabrication involves little-to-no tooling costs and is the most time consuming. The piece price is at its highest level with this process but the offset is the low-to-no tooling cost. The ideal EAU target for this process is less than 1,000 pieces.
Standard raw materials used are:
- Formed and expanded metal
- Plate metal
- Sectional metals (I beams, W beams, C-channel, etc...)
- Square stock
- Tube stock, CDSM
- Welding wire/welding rod
Another key process in fabrication is burning. Burn tables are primarily CNC cutting torches, usually natural gas powered. Plasma and laser cutting tables are also common.
Plate steel is loaded on a table and the parts are cut out as programmed. The support table is made of a grid of bars that can be replaced. More advanced burn tables also include CNC punch capability, with a carousel of different punches and taps. Fabrication of structural steel by plasma and laser cutting introduces robots to move the cutting head in three dimensions around the material to be cut.