What does the quenching and tempering process involve?
The quenching and tempering process is carried out to strengthen materials such as steel and iron based alloys, to make them extremely tough. Moreover, the process of quenching is also known as quench hardening.
The quenching and tempering process involves the heating of materials to extreme temperature, followed by cooling via water, air, oil or using inert gases such as nitrogen.
The complete process must be monitored and every stage of the process must be done with precision. In this process, heating temperature, the cooling methods used, the types of substances used to cool, and the time taken to allow the steel to cool must be examined.
After the quenching process, the material will be at its hardest state. The next step of the process is known as tempering. The tempering process involves achieving greater ductility and toughness by decreasing hardness.
Heating process needs to be carried out in the tempering process. Heating must be done to the quenched materials to just below the critical point for a period of time and then allocating it to cool.
It is important that the temperature and the heating time change depending on the composition of the material. Determining the right temperature and duration will give the fabricator the opportunity to optimise the material so that it meets the exact hardness requirements.
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