Control Arm 33322409891 For BMW E84

Heat treatment technology is usually used in the production process of automobile control arm to improve the hardness, strength and wear resistance of materials and enhance their fatigue and deformation resistance. Common heat treatment processes include quenching, tempering and normalizing.

1. Quenching: Quenching is to heat the control arm above the critical temperature, and then quickly cool it to room temperature, so that the material can be rapidly cooled and martensite structure can be generated, thereby improving the hardness and strength. The surface hardness of the control arm after quenching is high, but it is easy to be brittle, so tempering is needed.

2. Tempering: Tempering is to heat the quenched control arm to a certain temperature, keep the temperature for a period of time and then cool it, so as to change its structure, reduce its hardness and improve its toughness and plasticity. Tempering can eliminate the internal stress produced during quenching and improve the fatigue resistance of the control arm.

3. Normalizing: Normalizing is to heat the control arm to a certain temperature, keep it for a period of time and then cool it, so as to homogenize its structure and improve the toughness and strength of the material. Normalization is usually used for the final treatment of the control arm to ensure its stable and reliable performance.

By reasonably selecting and controlling the heat treatment process parameters, the material of the control arm can obtain ideal organizational structure and performance, and its durability and safety can be improved. In the production process of automobile control arm, heat treatment process is an important link, which has an important influence on the quality and performance of control arm.