研究目的
Investigating the effects of laser beam welding process parameters on the temperature distribution and tensile strength of SS317L alloy.
研究成果
The study successfully optimized the laser beam welding process parameters for SS317L alloy, with welding current having the most significant effect on temperature distribution and tensile strength. The developed simulation model matched experimental results reasonably well, suggesting its utility for further studies.
研究不足
The study is limited to SS317L alloy and specific laser welding parameters. The error between simulated and experimental temperature values is around 12%, indicating room for improvement in the simulation model.
1：Experimental Design and Method Selection:
The study uses a 400w Nd-YAG laser beam welding process on SS317L alloy plates. A 2D transient thermal-structural numerical simulation model was developed to simulate the welding process.
2：Sample Selection and Data Sources:
5 mm thick plates of austenitic steel alloy SS317L were used. Temperature was measured using K-type digital thermocouples.
3：List of Experimental Equipment and Materials:
Nd-YAG laser welding machine, K-type digital thermocouple, Electro-discharge machining for cutting specimens, Universal Testing Machine (TUE C 400) for tensile tests.
4：Experimental Procedures and Operational Workflow:
Welding was performed with varying current, frequency, and pulse width. Temperature was recorded at three locations. Tensile tests were conducted according to ASTM E8 standard.
5：Data Analysis Methods:
ANOVA was used to analyze the effect of each parameter on the output responses with the help of MINITAB software.
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