Laser Shock Processing

Laser shock processing

Laser shock processing (LSP) is a new surface treatment technology to improve surface performances such as fatigue-resistance, abrasive resistance, stress-corrosion resistance, etc. Through the interaction between high-power pulse nano-second laser and substrate materials, compressive residual stress is induced onto the substrate by high pressure shock wave, which gives contribution to the grains refining, thus improving the serving life and reliability of the products.
Compared with conventional surface processing methods, laser shock processing is a non-contact method without any heat-affected zone. The other advantages of LSP involve absence of contamination particles during the processing, adjustable depth of effect layer depending on the shock wave (up to GPa/Tpa level), and ultra-high strain up to 106 /s. In addition,LSP is a environmental-friendly technology with low energy consumption.

Fields of Application:
Metal surface treatment, e.g. engine fan blade, root, leading edge and trailing edge of blade.

Laser Shock Processing
 

A Moment of Plasma Explosion during Laser Peening

A Moment of Plasma Explosion during Laser Peening