What does MIG stand for in welding?
Other solid-state processes include friction welding. This includes friction stir welding and spot welding. You have many options for how to make your welding joints. There are five basic types: the butt joints, lap joints corner joint corners joint edge joint and edge joints. The T-joint is a variation on the cruciform. There are many variations. Double-V preparation joint, for instance, is characterized by two pieces of material each tapering at a single center point at half their height. Common are single-U as well double-U preparations joints. These joints have curves, and instead of being straight like the double and single V preparation joints, but they form the shape and size of a U. It is not uncommon for lap joints to be more than two-pieces thick. However, depending on the process used and how thick the material, many pieces may be welded together in a lap join geometry.
Modern welding methods, unlike forge welding, do not require the melting of materials to be joined. Ultrasonic welding is one of the most well-known methods. It uses vibration to join thin metal sheets and wires. Although the equipment and methods are similar to resistance welding, vibration is used instead of an electric current to provide energy input. This process doesn't involve melting metals; instead, it uses mechanical vibrations horizontally under high pressure to form the weld. Plastics should have the same melting temperature as the metals and vibrations must be applied vertically when welding them. It is a common method for welding polymers.
