seam welding is a process that produces a weld at the faying surfaces of two similar metals where its used depends on which metal you look to weld
The only difference between the two is that projection welding requires preparation of the joint members in the way of adding a preformed dimple or projection. Spot welding is used without such preparation to the joint members. it's just heat and pressure.
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.
Seam welding- resistance welding process involving the use of (normally) copper or copper alloy rollers to simultaneously pass high current (10^4 amps and usually in pulses) and apply pressure to bond a lap seam between two pieces of sheet metal. Percussion Welding- arc welding process involving the use of a capacitor bank to bond on the order of milliseconds. A high current electric arc is developed between the items to be joined, and the items are rapidly accelerated together.
The clue is in the question! If you weld a seam, or a spot which do you think is stronger? Take the example of the ordinary household radiator, it is seam welded, and they are usually watertight, it would be hard to make a waterproof seal with a spot welder and if you did try you would find it is very slow. A seam welder uses two rollers as the contacts instead of the copper rods, the rollers are inevitable faster as they can move along the piece easily and you get a perfect seal or seam when done, excellent.
MTR in welding?
The pipe which is formed by seam welding.
The only difference between the two is that projection welding requires preparation of the joint members in the way of adding a preformed dimple or projection. Spot welding is used without such preparation to the joint members. it's just heat and pressure.
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.
Seam welding- resistance welding process involving the use of (normally) copper or copper alloy rollers to simultaneously pass high current (10^4 amps and usually in pulses) and apply pressure to bond a lap seam between two pieces of sheet metal. Percussion Welding- arc welding process involving the use of a capacitor bank to bond on the order of milliseconds. A high current electric arc is developed between the items to be joined, and the items are rapidly accelerated together.
H. E. Otto has written: 'Evaluation of NASA-Langley Research Center explosion seam welding' -- subject(s): Explosive welding
The clue is in the question! If you weld a seam, or a spot which do you think is stronger? Take the example of the ordinary household radiator, it is seam welded, and they are usually watertight, it would be hard to make a waterproof seal with a spot welder and if you did try you would find it is very slow. A seam welder uses two rollers as the contacts instead of the copper rods, the rollers are inevitable faster as they can move along the piece easily and you get a perfect seal or seam when done, excellent.
open seam
You need to explain what seam you mean? A seam of coal? A seam in a jacket?
Yes, resistance welding is used in production welding. It is used extensively in the automotive industry.
If by gas welding you mean-oxyacetylene welding. The difference is just that arc welding requires a darker shade of lens. When oxyfuel gas welding (OFW) usually a shade 5 lens is recommended. When arc welding, a minimum of shade 10 lens should be used (actually shade should be determined by amount of current used).
"Ag an loin" translates to "at the seam" in English. It is an Irish phrase that can refer to a literal seam, such as in fabric or stitching, or can be used metaphorically in various contexts.
flat seam is used for decorative purpose. Seam edges do not overlap but flatted together. Seam is constructed with a minimum of 3 fabrics.