Micro Resistance Welding - AIT

Advanced Integrated Technologies ( AIT ) is the industry leading manufacturer of micro resistance welding electrodes for all makes of welders including Palomar/Hughes, Unitek, Avio, MacGregor, and Sunstone Engineering. Our high tech manufacturing processes help us to build very high quality low cost micro resistance welding electrodes. We offer both parallel gap and single point welding electrodes, in all RWMA materials. Our standard product line of micro resistance welding electrodes covers the vast majority of applications. AIT also builds a wide range of custom electrode designs for many of our customers. If you need micro resistance welding electrodes, call us today and see how Advanced Integrated Technologies ( AIT ) can help you.

Common forms of micro resistance welding include a straight–through weld, seam weld, and projection welds. In a straight-through weld the electrodes are opposite each other and current passes through the materials, forming a weld at the interface. A seam weld is actually the same as the straight-through weld except that either the electrodes or the work-pieces are moved along to form a continuous series of overlapping spots. A projection weld derives its name from the fact that projections extend from one of the two surfaces. This technique is used for a number of reasons, such as decreasing the amount of energy required to make a weld, improving the heat balance when a thin piece is welded to a large piece, and to allow several welds to be made with one welding pulse.

The next two forms of micro resistance welding fall under the general heading of parallel gap welding. With this type of weld both electrodes approach the work-piece from the same direction. These techniques are especially useful where the opposite side of one of the pieces being welded has an insulated layer. The electrode arrangement in a series configuration allows weld current to flow down one electrode, through both materials and up the other electrode. With the step weld, one electrode touches each material and the current all flows across the material interface.

Most micro resistance welding is done with specialty welders designed for this type of work. Hughes Aircraft Industrial Products Division was the first to develop a commercial welder for micro resistance welding. That technology later ended up in the hands of Miyachi Unitek, which is one of the big players in the market today. Sunstone Engineering, MacGregor, Avio, and several others all produce fine micro resistance welding equipment. If you have needs in this market, call us today. We can supply welders, electrodes, and a wealth of experience derived from over 20 years in this industry.