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Newfield frequently carries out general assembly processes as part of its fabrication work. Here, our investment in leading-edge equipment and our team’s dedication to quality provide exceptional versatility. Our welder’s skills are continually refined, and they can perform a variety of resistance welding jobs including spot welding, projection welding and nut welding. We also offer manual assembly services for the inclusion of other fittings, such as electronics, plastic and rubber components and bunging holes.
Resistance Welding
Spot welding
Resistance spot welding (RSW) is a process in which contacting metal surface points are joined by the heat from an electric current. Workpieces are held together by two shaped copper alloy electrodes. The electrodes concentrate welding current into a small “spot” melting the metal to form a weld. At Newfield, we utilise pre-determined programmes that take into consideration material thickness, current, pressure and the duration of the process.
Projection welding
Projection welding is a modification of spot welding. In this process, the weld is localized by means of raised sections, or projections, on one or both workpieces. Heat is concentrated at the projections, which permits the welding of heavier sections or closely spaced welds. The projections can also serve as a means of positioning the workpieces. Projection welding is often used to weld studs, nuts, and other threaded machine parts to the metal plate. It is also frequently used to join crossed wires and bars. Multiple projection welds can be arranged by suitable designing and jigging.
Nut welding
Nut welding describes the projection welding process used to attach threaded nuts to a metal substrate. This is a projection weld because the nuts either have a partial or full ring projection or multiple corner edges cast a projection on the substrate. This is a very common form of welding in the automotive and appliance industries. At Newfield, we offer plate-to-plate welding as well as nut welding, stud welding and bolt welding using the several welding methods at our disposal.
Manual assembly
Many customers request that we also assemble their fabricated parts. Great care is taken by our manual assembly team to ensure high quality standards, matching those expected by our customers. Through manual assembly, we can integrate electronics, sensors, rubber and plastic components and bungholes.