Advantages and Disadvantages of Induction-Hardening

Advantages and Disadvantages of Induction-Hardening Points : Advantages and Disadvantages of Induction-Hardening Advantages

1. It helps to obtain selective localized hardening without effecting the care or other sections of the part, and the properties.
2. The rapid heating drastically reduced the heating time to increase productivity of the heat treatment section.
3. Cheaper steels could be used as better properties could he developed.
4. Fully-automatic method for similar components is always preferred.
5. No Surface decarburization and oxidation occur.
6. Only slight deformation occurs.
7. Because of finer martensite, higher hardness can be obtained.
8. Higher fatigue strength is obtained.
9. Some straightening can he done in unhardened or even hardened state.
10. The process can be incorporated in production line.
11. Operating cost per part is less.
12. Case depths can be easily controlled.

Disadvantages

1. High capital investment is needed which requires justification to utilize it by having large number of parts to be induction-hardened.
2. Only a limited type of steels could be induction hardened.
3. Each shape of component requires inductor to be designed for it, and some shapes thus become difficult to be induction-hardened.