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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.
What else can I help you with?
What is difference between seam welding and spot 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.
What do you mean by seam welding where it is used?
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
Difference between ERW and SAW welding?
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.
What is a long seam weld on a vessel?
A long seam weld on a vessel is a continuous weld that runs along the length of the cylindrical structure, typically used to join two edges of metal plates together. This type of weld is crucial for maintaining the strength and integrity of the vessel, especially under pressure. It is commonly found in the construction of tanks, pipes, and boilers, where it ensures a secure and leak-proof connection. Long seam welding can be performed using various techniques, including electric arc welding and submerged arc welding.
Why seam welding is better than that of spot 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.
What is seam pipe?
The pipe which is formed by seam welding.
What is difference between seam welding and spot 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.
What do you mean by seam welding where it is used?
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
Which welding is similar to projection welding?
Seam welding is similar to projection welding as both processes involve the use of electrodes to apply pressure and heat to weld metal parts together. In seam welding, a continuous seam is created by overlapping metal pieces, while projection welding focuses on specific raised areas or projections on the workpieces. Both methods utilize electric resistance and are effective for joining materials in various applications.
Difference between ERW and SAW welding?
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.
What are the points which determine the choice of seam?
You need to explain what seam you mean? A seam of coal? A seam in a jacket?
What has the author H E Otto written?
H. E. Otto has written: 'Evaluation of NASA-Langley Research Center explosion seam welding' -- subject(s): Explosive welding
Why seam welding is better than that of spot 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.
Difference between seamless and erw pipe?
ERW (Electric Resistance Welding) pipe is manufactured by rolling metal and then welding it longitudinally across its length. Seamless pipe is manufactured by extruding the metal to the desired length; hence ERW pipe has a welded joint in its cross-section, while seamless pipe does not have any joint in its cross-section through-out its length.
Is HSAW pipe straight seam?
Yes, HSAW (Helical Submerged Arc Welded) pipes are characterized by their helical seam, which is produced by winding a flat steel strip into a cylindrical shape and welding it along the spiral seam. This design allows for efficient manufacturing and provides strength, making HSAW pipes suitable for various applications, particularly in the oil and gas industry. While the seam is not straight, the overall pipe can be straight in form.
What welding process uses a resistive heating system to achieve metal deposition?
The welding process that uses a resistive heating system for metal deposition is known as Resistance Welding. In this process, electrical resistance is utilized to generate heat at the interface of the materials being joined, which causes them to melt and fuse together. This method is commonly used for spot welding and seam welding, particularly in the automotive industry for joining sheet metal components. The efficiency and speed of resistance welding make it suitable for high-volume production.
Where two pieces of material join what is it called?
When two pieces of material join together, it is called a seam. Seams can be created using different techniques such as stitching, welding, or adhesive bonding.
