研究目的
To optimize the laser peening parameters for titanium using the Taguchi technique to enhance surface properties such as hardness and roughness.
研究成果
Laser peening successfully increased the hardness and roughness of titanium specimens. The coating factor was more influential for hardness, while power input more significantly affected roughness. The technique shows promise for enhancing mechanical properties and controlling surface fracture development.
研究不足
The study acknowledges the high cost and reliability issues of high-energy lasers for commercial usage, and the challenge of optimizing process parameters without extensive experimentation.
1：Experimental Design and Method Selection:
The study employed a Q-switched Nd-YAG Laser for laser peening, using the Taguchi L18 orthogonal array to optimize parameters like laser power, pulse density, pulse duration, operating frequency, and coating.
2：Sample Selection and Data Sources:
Commercially pure titanium of grade 2 was used, prepared into blocks and polished.
3：List of Experimental Equipment and Materials:
Q-switched Nd-YAG Laser (Lithron Lasers, UK), PVC tape for coating, and various polishing materials.
4：Experimental Procedures and Operational Workflow:
Laser peening was conducted with varying powers and with/without coating, followed by characterization of surface roughness and hardness.
5：Data Analysis Methods:
Statistical Taguchi technique was used for optimization, with S/N ratios and ANOVA for analyzing the influence of parameters.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容
