| Heat treatment is the process used to modify | | | | depth. HRC50 is the hardness equivalent of the |
| the mechanical and physical properties of metal | | | | effective case depth which is can be test using |
| without altering the materials formation. It usually | | | | Tukon microhardness tester. The value of this |
| increased the material's strength. It is also used to | | | | case depth is approximately 65% of the value of |
| modify the objective of some material aspect | | | | total case depth. But the approximation can be |
| manufacturability like, restoring ductility after the | | | | affected by hardenability and chemical composition |
| cooling treatment, improving the machine process | | | | of the material. The total case depth is the |
| and to improve its formability. It is also somehow | | | | correct depth of the case. |
| used to manufacture certain materials like glass. It | | | | Precipitation strengthening used to either some |
| also improves the materials performance. | | | | precipitation hardening metals like alloys from |
| Metallurgical process is where usually the heat | | | | hardening, since some metals are easier to |
| treatment is being applied. To attain the preferred | | | | assemble if it is soft. Alloys are put in the freezer |
| outcome such as softening and hardening of the | | | | to avoid hardening prior to the production or |
| product, heat treatment process includes the | | | | assembly of the product. |
| chilling and heating of such product from | | | | To reduce the stress applied to the material, |
| moderate to extreme high temperature. | | | | annealing method is being used. This method |
| The heat treatment processing methods involves | | | | usually produces a ductile and soft metal. |
| case hardening, precipitation strengthening, | | | | Quenching is done to harden a metal. The metal is |
| annealing, quenching and tempering. | | | | usually heated and the cooled quickly. Cooling |
| Case hardening is specifically meant the case | | | | process is usually done by exerting forced gas or |
| depth and hardness of the material. This has two | | | | air. |
| classifications, the effective and the total case | | | | |