0
What else can I help you with?
What is the difference between arc welding and resistance welding?
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.
What generates the heat for fusion in resistance welding?
In resistance welding, the heat for fusion is generated by passing a high electrical current through the materials being welded. The resistance of the materials to the flow of electrical current causes them to heat up rapidly at the interface, melting and fusing together.
What is the temperature co-efficient of a resistance of a thermister?
The temperature coefficient of a thermistor is a measure of how much its resistance changes with temperature. It is typically expressed in units of percent resistance change per degree Celsius. Negative temperature coefficients mean the resistance decreases as temperature increases, while positive coefficients mean the resistance increases with temperature.
What does the slope of resistance Vs temperature curve gives?
The slope of a resistance vs. temperature curve gives the temperature coefficient of resistance, which quantifies how much the resistance of a material changes with temperature. Positive values indicate the resistance increases with temperature (e.g., in most metals), while negative values indicate the resistance decreases with temperature (e.g., in semiconductors).
What is the relationship between resistance and temperature in the resistance temperature relationship?
In the resistance-temperature relationship, resistance typically increases as temperature increases. This is because the atoms in a material vibrate more at higher temperatures, causing more collisions with electrons and increasing resistance.
What type of welding machine use in spot welding or resistance welding?
Mainly In spot welding & resistance welding two type welding machines are used :- 1. Air Cooled & 2. water Cooled.
When was the spot welder invented?
Spot welding is a form of resistance welding invented by Elihu Thompson in the late 1800s.
Why spot welding known as resistance welding?
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!
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 Determines the exact temperature of the shielded metal welding arc?
It depends on the resistance to the current flow
What determines the exact temperature of the shield metal welding arc?
It depends on the resistance to the current flow
Resistance welding is commonly used in production welding operations?
Yes, resistance welding is used in production welding. It is used extensively in the automotive industry.
What is resistance welding?
Arc. It's where electrical resistance is used to create the heat for the welding process.
What has the author Hongyan Zhang written?
Hongyan Zhang has written: 'Resistance welding' -- subject(s): Electric welding 'Resistance welding' -- subject(s): Electric welding
What is the purpose for welding with direct current?
spot welding is one reason
Why spot welding robot not used in arc welding?
A spot welding robot has generally 5 axis opposed to an arc welding robot that needs 6 axis. The controls and communication channels with the welding power supplies are configured differently as well.
What is the difference between arc welding and resistance welding?
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.
