Hot Sale Surface Treatment Processing Cold Rolled Steel SPCC Sheet Metal Electroplating Stamping Parts

During the processing, the deformation of the workpiece is minimal, making it suitable for surface strengthening of certain workpieces or local parts that cannot be completed or difficult to achieve by other quenching techniques. Laser heat treatment has a high degree of automation, and the depth and area of the hardening layer are controllable. This technology is mainly used to strengthen the surface of automotive components or molds, improve their surface hardness, wear resistance, corrosion resistance, strength, and high-temperature performance, such as laser heat treatment of automotive engine cylinder holes, crankshafts, stamping molds, casting plates, etc.

Laser heat treatment, also known as laser quenching or laser phase transformation hardening, is a process in which a high-energy laser beam is used to quickly scan the workpiece, causing the surface temperature of the irradiated metal or alloy to rise above the phase transformation point at an extremely fast rate. When the laser beam leaves the irradiated area, due to thermal conduction, the cold substrate rapidly cools down and undergoes self cooling quenching to obtain a finer hardened layer structure, with a hardness generally higher than that of conventional quenching.