What is Electric Heating?The process in which electrical energy is converted into heat by resisting the free flow of electric current is known as electric heating.Whenever an electric current is made to pass through any circuit having a resistance of R ohms, then power dissipated in the circuit is equal ... Read More

Electric ArcAn electric arc is an electric discharge of gases which is produced by passing an electric current between two points called electrodes. The electric arc was first detected by British chemist Humphry Davy in 1808. The electric arc is the visible plasma between two electrodes due to the ionization ... Read More

Carbon arc welding is used for welding copper and its alloys. In this method, the carbon electrode is used which is kept negative with respect to work if DC supply is used. It is because, if the carbon electrode is made positive, the carbon particles have a tendency to go ... Read More

Heating ElementThe device which converts electrical energy into heat energy through the process of Joule heating is known as heating element. The heating element is the part of any electric heating appliance in which the electrical energy transformed into heat. The electric current through the element encounters resistance which results ... Read More

What is a Welding Position?The technique which allows a welder to join the metals in the position in which they are found or the position in which a specific component will be used, is called the welding position.According to the American Welding Society, there are following four welding positions in ... Read More

Electric HeatingThe process in which electrical energy is converted into heat by resisting the free flow of electric current is known as electric heating. Therefore, the heat is produced due to circulation of electric current through a resistance. This electric current may be circulating directly due to the application of ... Read More

Electric Arc WeldingThe electric arc welding is the welding process which uses electric arc to create heat to melt and join the metals. In the electric arc welding, the electric power supply creates an electric arc between the electrode and the base material.Depending upon the type of power supply used, ... Read More

Heat TransferThe heat transfer is defined as the transmission of heat energy from one region to another region as a result of temperature gradient. In actual practice, the heat transfer always takes place from the region of high temperature to the region of low temperature.Modes of Heat TransferThe transfer of ... Read More

Resistance WeldingResistance welding is the welding process of joining of metals by applying mechanical pressure and passing a heavy current for a length of time through the metal parts which are to be joined. The chief advantage of the resistance welding is that it does not require any other material ... Read More

There are two types of electric currents used for welding process viz. AC and DC. There are many differences between the AC welding machine and the DC welding machine.AC Welding Machine Vs DC Welding MachineThe following table compares and contrasts the different features of AC and DC welding machines −AspectAC ... Read More