Tempering is a heat treatment process that heats quenched alloy metal products or parts to a certain temperature, holds them for a certain period of time, and then cools them in a certain way. Tempering is an operation performed immediately after quenching, and it is usually the workpiece that undergoes heat treatment. The last process, so the combined process of quenching and tempering is called the final treatment.
2. The main purpose of quenching and tempering is:
1) Reduce internal stress and brittleness. Quenched parts have great stress and brittleness. If they are not tempered in time, they will often deform or even crack.
2) Adjust the mechanical properties of the workpiece. After quenching, the workpiece has high hardness and brittleness. In order to meet the different performance requirements of various workpieces, the hardness, strength, plasticity and toughness can be adjusted through tempering.
3) Stable workpiece size. Tempering can stabilize the metallographic structure to ensure that it will no longer deform during subsequent use.
4) Improve the cutting performance of certain alloy steels.
The quenching and tempering process plays a great role in improving the quality of cemented carbide. All current tungsten carbide cold heading molds will be quenched and tempered after sintering.
Post time: Mar-12-2024
