研究目的
To investigate the micromachining of Al-SiC based metal matrix composite using diode pumped solid state pulsed Nd:YAG Laser, focusing on the effects of process parameters on the quality of micro-grooves produced.
研究成果
The study successfully demonstrated the use of DPSS Nd:YAG laser for micromachining Al-SiC composites, identifying optimal process parameters for minimizing deviations in groove dimensions. The MOPSO algorithm effectively found the optimal parameter settings, highlighting the potential of this approach for similar applications.
研究不足
The study is limited to the micromachining of Al-SiC composites using a specific type of laser (Nd:YAG). The findings may not be directly applicable to other materials or laser types. Additionally, the optimization is based on specific response criteria, which may not cover all possible quality aspects of micromachining.
1：Experimental Design and Method Selection:
The study utilized a central composite design (CCD) based on response surface methodology (RSM) to plan the experiments. Analysis of variance (ANOVA) was used to validate the regression models.
2：Sample Selection and Data Sources:
Aluminium silicon carbide composite specimens with a mean thickness of 4mm were used as workpiece material.
3：List of Experimental Equipment and Materials:
A CNC diode pumped Nd:YAG laser machining system operated in pulsed mode was used for experimentation. Specifications include a wavelength of 1064 nm, pulse width of 120 ns, and spot diameter of 21μm.
4：Experimental Procedures and Operational Workflow:
Experiments were conducted based on the designed plan with parameters including diode current, pulse frequency, pulse width, and air pressure. The responses measured were upper width deviation, lower width deviation, and depth deviation of the micro-grooves.
5：Data Analysis Methods:
The data were analyzed using regression models and ANOVA to understand the effects of process parameters on the responses. Multi-objective particle swarm optimization (MOPSO) was used for optimization.
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
