Name：Institute of Laser Technology, School of Mechanical Engineering, Jiangsu University
Tele：(86) 511 88797198
Fax：(86) 511 88797036
Research institutions with provincial or ministerial level：
Jiangsu Key Laboratory of Photonics Manufacturing Science and Technology
Key Laboratory of Laser Shock Processing for Machinery Industry
Researchers：11 Professors / Ph.D., 9 Professors and 8 Associate Professors
Research Achievements：
Published more than 500 papers, includedmore than 200 SCIpapers; Applied for more than 10international patents; Applied for more than 200 Chinese invention patents and among which more than 150 invention patents have been authorized; Won a first prize and a second prizeof national science and technology progress award, four first prizes of provincial/ministerial science and technology award, and seven second prizes of provincial/ministerialscience and technology award. A total of 25 million yuan has been received from various funds.
Main research directions：
Laser shock processing/laser peening technology and its industrial application
Laser precision cutting and welding technology
Laser micro machining and surface engineering technology
Laser cleaning technology and its application
Typical research equipment:
Nanosecond high power automatic laser shock processing system, fiber laser processing system, laser cleaning system, picosecond laser processing system, residual stress/ strain measurement system and so on, the total value of the equipment more than 15 million yuan
Parameters of Nd:YAG-GAIA laser
Nd:YAG-GAIA laser |
Operation Material |
Nd:YAG |
Frequency(HZ) |
1~5 |
Wavelength(nm) |
1064 |
Power Distribution |
Flat |
Pulse Power(J) |
<12 |
Spot Shape |
Circle |
Pulse Width(ns) |
<15 |
Focus Size(mm) |
Ф3~8 |
GAIA-Thales Laser and its controller
Laser path of GAIA-Thales laser and its external laser path
Main research contents：
1. Temporal and spatial propagation characteristics of laser induced plasma shock waves
Temporal and spatial propagation Shock wave loading model for
characteristics of laser shock waves laser shock processing
Propagation characteristics of laser Effect of repeated loading shockwave
shock wave in depth direction
2.Numerical simulation of the propagation of laser shock wave
Distribution characteristics of residual stress at different time
3. Mechanism of high strain rate strengthening of materials under wave solid coupling
Schematic illustration showing micro-structural evolution of the top surface induced by different numbers of Laser shock processing impacts
Typical TEM images of the top surface subjected to different numbers of laser shock processing impacts
4.Experimental study on fatigue crack propagation of laser peening
Typical6061-T6CT samples subjected to differentlaser peeningcoverage areas
Typical photos ofCT samples during the process of fatigue crack growth test
Morphologies of the fatigue crack initiation region onthe notched samplessubjected tomultiple laser peening impacts
Crack block and fatigue strip in fatigue fracture under differentlaser peening coverage areas
5. Laser peen forming
Principle and typical forming sample of laser peen forming
Prism surface Arc surface
Application of laser peen forming technology
Theory and technology of laser driven flyer micro plastic forming
