What is induction ?
Induction is used to give hardness to a specific cross section of the workpiece in an industrial environment. Induction is a type of current and is achieved using a magnetic and/or magnet field. The real logic of the inductive process involves the following steps. Conducting wires are wrapped around a workpiece. After this process it is called bobbin or solenoid. A current is formed by the reciprocating of a magnet into the current reel. This current is called induction current.
The induction process can vary depending on the coil winding, the magnet's magnitude, the magnet's reciprocating speed, and the distance between the magnet and the coil.
Let`s try to explain the induction process a little more with an example. Consider a pipe with a diameter of 500 mm and assume that its wall thickness is 50 mm. So we are talking about a piece (shaft, roller, etc.) with a hole diameter of 400mm. If we apply induction (heat treatment) to the whole wall thickness of this part, its fragility will increase as it will harden. Therefore, if the induction process is applied to the first 20mm of the part with a wall thickness of 50mm, the remaining 30mm part will remain soft and it will not be fragile yet hard. We know that chrome plating gives the surface hardness in the same way, but the biggest difference is that the chrome plating process can be applied to 2 or 3 mm while induction can be applied to a deeper area based on the results of the feasibility studies.