MacGregor Welding Systems produces a number of resistance welding products including power supplies, weld heads, distribution units and various accessories. Applications testing, process development and pre-production welding services are provided to help maximise the results and quality obtained from MacGregor Welding Systems equipment.
Resistance spot welding can be defined as the joining of two similar or dissimilar metals by passing current through the materials and interface. The heat that results from the resistance in the current path creates the weld. The use of this process allows for localised heating and bonding of metals. Although the temperatures at the weld interface are high, the short duration of the weld results in minimal dissipation of heat into surrounding materials.
The primary factors involved in resistance spot welding include time, energy, force, component material, interface and geometry but also the size, shape and material of the welding electrodes. The large number of influential factors involved in resistance spot welding adds both complexity and flexibility to the micro welding process as a manufacturing tool. The high level of flexibility and complexity inherent in the welding process makes the qualification and refinement of the welding process a challenge that requires both testing and experimentation.
The first general rule of resistance welding requires that the materials must be metals. While resistance welding technology can be used to heat and bond other materials, the process of welding itself can only occur between two metals. The material must also be shaped and arranged so that the welding electrodes can apply mechanical pressure to the joint while the current pulse is applied. This ensures that the current flow during the weld follows a pre-determined path.
We also manufacture welding systems and a range of other precision micro welding equipment including micro TIG welding for the coil termination industry, Droplet Deposition for the lighting industry, and a full design and build service for automated production.
MacGregor Welding Systems produce a number of resistance welding products including power supplies, weld heads, distribution units and various accessories. Applications testing, process development, and pre-production welding services are provided to help maximise the results and quality obtained from MacGregor Welding Systems equipment.
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