Difference between the Flame hardening and induction hardening

Difference between the Flame hardening and induction hardening is as follows:

Flame Hardening:

• In this type of treatment, the process is done by heating the steel directly by an oxyacetylene flame and cooling it by cold water immediately.
• To do this work skill labor is required.
• In this equipment cost, is less and also less in maintenance.
• There are more damaging possibilities in this process.
• In this type of Hardening, It is difficult to produce the hardened zone less than 1/16th inch.

Induction Hardening:

• In this type of treatment, the process is done by passing the high-frequency current through the coil in which steel components are placed.
• Unskilled labor can do this work.
• This equipment cost is high and the cost of maintenance is also high.
• There is no damaging occurs.
• In this it is easy to produce the hardened zone less than 1/16th.

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