CASE HARDENING:

Carburizing, also referred to as case hardening, is a heat treatment process that produces a surface which is resistant to wear, while maintaining toughness and strength of the core. This treatment is applied to low carbon steel parts after machining, as well as high alloy steel bearings gears, and other component.
MATERIAL:
1. EN 353
2. SAE 8620
3. SEM 415H
4. 20MNCR5
5. 16MNCR5
6. 17 CR3
7. 15 CR3
8. Alloy Steel

HARDENING & TEMPERING:

HARDENING Is a metallurgical metal working process used to increase the hardness of a metal is directly proportional to the uniaxial yield stress at the location of the imposed strain. A harden metal have a higher resistance to deformation than ales hard metal.

TEMPERING PROCESS:

TEMPERING Is a heat treatment technique applied to ferrous alloys such as steel or cast iron, to achieve greater toughness by decreasing the alloy and uneven stress the reduction in hardness is usually accompanied by an increase accompanied by an increase in ductility, thereby decreasing the brittleness of the metal.

NORMALIZING PROCESS:

NORMALIZING PROCESS is a heat treatment process for making material so after but does not produce the uniform material properties as produced with an annealing process the most common reason for the normalizing process is to adjust mechanical properties to suit the service condition.

ANNELING:

Is a heat treatment process which after the microstructure of a material to change its mechanical or electrical properties.Typically, annealing is used to reduce hardness, increase ductility and help eliminate internal stresses in order to have good-roachinability.

STRESS RELIEVING:

STRESS RELIVING Is a heat treatment process that consists of heating the steel to a temperature below the critical point to relive the relive the residual stresses resulting from hot rolling,welding,shearing,or gas cutting stress relieving is done without change of material properties unless annealing and normalizing.

SOLUTION TREATMENT:

SOLUTION TREATMENT solution heat treatment is a treatment in which aluminium alloy and stainless steels is heated to a suitable temperature and held at this temperature for a sufficient length of time to allow a desired constituent to enter into the solid solution, followed by rapid cooling to hold the constituent in the solution.

PRECIPITATION TREATMENT:

PRECIPITATION TREATMENT precipitation hardening, also called age hardening or particle hardening, is a heat treatment technique used to increase the yield strength of malleable materials, including most structural alloy of aluminium, mangnesium, nickel titanium, some steel and stainless steels.

GAS NITRIDING:

GAS NITRIDING Is widely used because of high surface property ammonia (NH3) is used for this process with particular temperature and time can be obtain good case even up to 05mm in which is not possible in other nitriding process namely salt nitriding extra.