Laser Shock Peening Equipment

　　Laser shock peening equipment includes a high-power pulsed laser source, power pump and control system, water cooling system, optical output isolation system, optical focusing system, water flow constraint control system, multi-axis motion system, integrated control system, soundproof room, and air purification device; it uses short pulses and high peak power density laser radiation on the metal surface. The metal surface absorption layer absorbs the laser energy causing explosive vaporization, generating high-temperature, high-pressure plasma. When the plasma is constrained by the confinement layer, it produces a high-intensity pressure shock wave that acts on the metal surface and propagates inward. When the peak pressure of the shock wave exceeds the dynamic yield strength of the treated material, it causes strain hardening on the material surface, leaving significant compressive residual stress, significantly improving the metal's fatigue resistance, stress corrosion resistance, and resistance to external damage.

● High pressure: pressure can reach GPa level;

● High energy: power density can reach several GW/cm²;

● Low roughness and small heat-affected zone: suitable for shock peening of various metals (Ti/Al/Ni/Cr/Mg). The high energy density laser generates a high-intensity pressure shock wave within the confinement layer, inducing plastic deformation and grain refinement in the metal material, leaving significant compressive residual stress; roughness can reach micrometer level; minimal heat effect on the substrate;

● High quality: greater residual stress, deeper residual stress, denser microstructure;

AI6061-T6 Laser Shock Peening

● Precision: precise control of process parameters; precise control of the workpiece action area; precise control of residual stress distribution and depth;

● Laser shock forming: special curvature-oriented rapid forming for special high-end products, with advantages including increased compressive stress on bent surfaces, increased tensile stress, improved stress corrosion resistance, enhanced fatigue life, and controllable curvature changes;

● Composite manufacturing: combining laser shock peening (laser forging) with additive manufacturing can refine grains and significantly improve the fatigue performance of printed parts.

Ti-6Al-4V workpiece introduces laser shock peening (laser forging) during additive manufacturing, generating -600MPa compressive residual stress with a depth of 0.8mm.

Laser Shock Peening (LSP) compared with HIP and machining

  Ti-6Al-4V workpiece with laser shock peening (laser forging) introduced during additive manufacturing compared to without laser shock peening, fatigue life increased by more than 10 times.

► Core laser source with high energy output and high stability (hundreds of millions of stable pulses), beam spatial distribution approximates flat-top, near-field contrast ≤1.7:1, sharp spot edges;

► Integrated control of complete equipment enables high-precision coordinated movement between device and workpiece;

► Customized optical output and light guide walls;

► Consistent and stable thickness and velocity of the constrained water flow layer;

► Process development and data accumulation for various metal materials and workpieces including Ti/Al/Ni/Cr/Mg;

► Open system and customized equipment to meet different user group needs.

► Provide a series of laser shock peening equipment with 2-40J@1064nm, repetition rate 1-10Hz, pulse width 10-20ns;

► Laser shock product processing;

► Laser shock process development and prototyping;

► System upgrades and integration services.