High Precision CNC Machining Service Processing Steel Parts provide high precision customized CNC machining steel parts

We have 17 years of experience in providing precision parts for some of the world's leading companies. We can produce products with precise dimensions and strict appearance. We also provide precision injection molds; CNC machining and sheet metal parts services.

Today I will introduce to you: Local hardening technology for hardware parts--laser quenching
  Laser quenching is a quenching technology that uses laser to heat the surface of metal materials to above the phase transition point. As the metal material cools itself, austenite transforms into martensite, thereby hardening the surface of the material. It has high heating and cooling speeds, short process cycles, and does not require external quenching media. It has unique advantages such as small workpiece deformation, clean working environment, no need for finishing such as grinding after treatment, and the size of the processed gear is not limited by the size of the heat treatment equipment.

Laser quenching technology is widely used in mechanical processing industry, petrochemical industry, medical industry, aerospace industry, automobile parts manufacturing factory, etc. It can be used to strengthen the surface of various guide rails, large gears, journals, cylinder inner walls, injection molds, friction wheels, rollers, and roller parts. Applicable materials are medium and high carbon steel and cast iron.
Laser quenching has high power density, fast cooling speed, and does not require cooling media such as water or oil. Compared with induction quenching, flame quenching, and carburizing quenching processes, laser quenching has a uniform hardened layer, high hardness (generally 1-3HRC higher than induction quenching), small deformation of the workpiece, and easy control of the heating layer depth and heating trajectory. It is particularly important that the deformation of hardware parts before and after laser quenching is almost negligible, so it is particularly suitable for the surface treatment of customized metal parts with high precision requirements. The depth of the laser hardened layer is generally between 0.3 and 2.0 mm, depending on the composition, size and shape of the customized parts and the laser process parameters. The surface roughness of the tooth surface of large gears and the journal of large shaft metal parts is basically unchanged when quenching, and the demand can be met without subsequent machining.