its parts it too costly . thick metal is not welable. its machines are very cotly
Specialist machines can be expensive, but can make many welds a minute very cheaply, as used on car bodies. Thin metal can be welded to thick, but as the objects get larger, much more electrical current is required, and this gives problems with electrode contact and burning under the electrode
Yes, resistance welding is used in production welding. It is used extensively in the automotive industry.
Mainly In spot welding & resistance welding two type welding machines are used :- 1. Air Cooled & 2. water Cooled.
Hongyan Zhang has written: 'Resistance welding' -- subject(s): Electric welding 'Resistance welding' -- subject(s): Electric welding
Arc. It's where electrical resistance is used to create the heat for the welding process.
Arc welding uses an electric arc to melt and join metal pieces together, while resistance welding uses heat generated by the resistance to electric current flow between two metal pieces to join them together. Arc welding is more versatile and can be used for various types of metals, while resistance welding is more suited for high-speed production and is commonly used in automotive and appliance manufacturing.
GUCCI
Resistance welding plants are used in fence manufacturing.
Spot welding is known as resistance welding because the the two pieces of metal melt together at the point of highest resistance to current flow, basically when the electricity flows through the pieces it heats up at the point of highest resistance that is where where the metal pieces touch and in a direct line from the two contact tips on the spot welder. Simple!
SAW welding is a type of arc welding while ERW welding is spot or seam welding. SAW stand for submerged arc welding while ERW stands for electric resistance welding.
Resistance spot welding typically occurs at temperatures between 1,800 and 2,500 degrees Celsius at the welding point. The high temperature is generated due to the electrical resistance between the workpieces, causing them to melt and fuse together.
Welding is a versatile fabrication process used to join materials, primarily metals, through the application of heat and pressure. Its scope includes various techniques such as arc, MIG, TIG, and resistance welding, applicable in industries like construction, automotive, and aerospace. However, limitations include the requirement for skilled labor, potential for defects like cracks or porosity, and restrictions on the types of materials that can be effectively welded together. Additionally, welding may produce residual stresses and can be unsuitable for certain applications where the integrity of the base material must remain intact.
Electric Resistance Welding