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What is the best upsetting force and cylinder clamping force of flash butt welding machine?
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What is the best upsetting force and cylinder clamping force of flash butt welding machine? - Xinxing Welding
Release time:2022.01.22
Summary of information:
The upsetting force and cylinder clamping force of flash butt welding machines are actually very demanding, especially the clamping force, which is 1.5-4 times the upsetting force. This requires the cylinder to be larger than that of ordinary pneumatic butt welding machines and pneumatic spot welders. However, there are really not many flash butt welding machines on the market that meet the requirements. So what are the specific parameters?
1. Upsetting pressure: refers to the extrusion force required to tighten the workpiece joint.
Flash butt welding machineUpsetting pressure is usually expressed in terms of pressure per unit area, that is, upsetting pressure. The size of the upsetting pressure should ensure that the liquid metal in the joint can be squeezed out and a certain degree of plastic deformation can be produced at the joint. If the upsetting pressure is too small, the deformation will be insufficient and the joint strength will decrease; if the upsetting pressure is too high, the deformation will be too large and the crystal grain will be severely bent, which will also reduce the impact toughness of the joint.
The size of the upsetting pressure depends on factors such as metal properties, temperature distribution characteristics, upsetting amount and speed, workpiece end face shape, etc. Metals with high temperature and strength require large upsetting pressure. Increasing the temperature gradient requires increasing the upsetting pressure. Since high flash speed will cause the temperature gradient to increase, when welding metals with good thermal conductivity (copper, aluminum alloys),Large upsetting pressure (150 ~ 400MPa) is required.
2. Cylinder clamping force
Flash butt welding machineThe clamping force of the cylinder must ensure that the workpiece does not slip during upsetting. The clamping force and the upsetting force are related to the friction between the workpiece and the clamp. Usually the clamping force = (1.5~4) times the upsetting force. The upper limit is generally 1.5 times for low carbon steel with small cross-section, and 4 times for cold-rolled stainless steel. Therefore, pay attention to the size of the cylinder in the technical parameters and its output force. Basically, a larger cylinder means a larger clamping force. Under the same quality, a larger cylinder is naturally better.
The following is a table to see how much metal upsetting pressure and cylinder clamping force are commonly used in flash butt welding machines.
Wuxi Xinxing Welding Equipment Factory was founded in 1993 with innovative development29yearsResistance welding machine manufacturer, production and salesProducts include:Spot welding machine, iron spot welding machine, copper spot welding machine,Aluminum foil spot welding machine，Stainless steel spot welding machine, aluminum plate spot welding machine, stencil spot welding machine, microelectronic spot welding machine, butt welding machine, copper rod butt welding machine, iron wire butt welding machine, steel bar butt welding machine, aluminum rod butt welding machine, titanium wire butt welding machine, alloy wire butt welding machine, steel ring butt welding machine, hub butt welding machine, copper and aluminum butt welding machine, copper and aluminum pipe butt welding machine, etc., no matterSemi-automatic or automatic, everything is available.Excellent quality, good price, casesMore, welcome to consult and purchase!
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What is the best upsetting force and cylinder clamping force of flash butt welding machine? - Xinxing Welding
Summary of information:
The upsetting force and cylinder clamping force of flash butt welding machines are actually very demanding, especially the clamping force, which is 1.5-4 times the upsetting force. This requires the cylinder to be larger than that of ordinary pneumatic butt welding machines and pneumatic spot welders. However, there are really not many flash butt welding machines on the market that meet the requirements. So what are the specific parameters?
1. Upsetting pressure: refers to the extrusion force required to tighten the workpiece joint.
Flash butt welding machineUpsetting pressure is usually expressed in terms of pressure per unit area, that is, upsetting pressure. The size of the upsetting pressure should ensure that the liquid metal in the joint can be squeezed out and a certain degree of plastic deformation can be produced at the joint. If the upsetting pressure is too small, the deformation will be insufficient and the joint strength will decrease; if the upsetting pressure is too high, the deformation will be too large and the crystal grain will be severely bent, which will also reduce the impact toughness of the joint.
The size of the upsetting pressure depends on factors such as metal properties, temperature distribution characteristics, upsetting amount and speed, workpiece end face shape, etc. Metals with high temperature and strength require large upsetting pressure. Increasing the temperature gradient requires increasing the upsetting pressure. Since high flash speed will cause the temperature gradient to increase, when welding metals with good thermal conductivity (copper, aluminum alloys),Large upsetting pressure (150 ~ 400MPa) is required.
2. Cylinder clamping force
Flash butt welding machineThe clamping force of the cylinder must ensure that the workpiece does not slip during upsetting. The clamping force and the upsetting force are related to the friction between the workpiece and the clamp. Usually the clamping force = (1.5~4) times the upsetting force. The upper limit is generally 1.5 times for low carbon steel with small cross-section, and 4 times for cold-rolled stainless steel. Therefore, pay attention to the size of the cylinder in the technical parameters and its output force. Basically, a larger cylinder means a larger clamping force. Under the same quality, a larger cylinder is naturally better.
The following is a table to see how much metal upsetting pressure and cylinder clamping force are commonly used in flash butt welding machines.
Wuxi Xinxing Welding Equipment Factory was founded in 1993 with innovative development29yearsResistance welding machine manufacturer, production and salesProducts include:Spot welding machine, iron spot welding machine, copper spot welding machine,Aluminum foil spot welding machine，Stainless steel spot welding machine, aluminum plate spot welding machine, stencil spot welding machine, microelectronic spot welding machine, butt welding machine, copper rod butt welding machine, iron wire butt welding machine, steel bar butt welding machine, aluminum rod butt welding machine, titanium wire butt welding machine, alloy wire butt welding machine, steel ring butt welding machine, hub butt welding machine, copper and aluminum butt welding machine, copper and aluminum pipe butt welding machine, etc., no matterSemi-automatic or automatic, everything is available.Excellent quality, good price, casesMore, welcome to consult and purchase!
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