研究目的
To monitor the laser cutting process of a steel plate using an IR camera and provide an analytical solution of the temperature field generated on a slab by a point source moving along one direction of the plate surface.
研究成果
The use of an IR camera to monitor the laser cutting process of a steel plate was demonstrated. A simplified analytical model was proposed to determine the heat diffusion by conduction of a moving source of heat in CW and in periodic mode.
研究不足
The laser cutting process is a very complicated phenomenon that combines phase change of the material, photothermal transformation of energy, heat transfer by conduction and radiation. The analytical model proposed is simplified.
1：Experimental Design and Method Selection:
The experimental phase involved monitoring the cutting of a carbon steel piece using a LT5 laser cutting system. An IR camera was used to monitor the surface temperature during the cutting process.
2：Sample Selection and Data Sources:
A piece of carbon steel of approximate dimension 50 cm × 50 cm and thickness 1 cm was used.
3：List of Experimental Equipment and Materials:
The LT5 laser cutting system at ADIGE-SYS S.P.A., a thermal camera (FLIR SC660), and a PK7 window for lens protection.
4：Experimental Procedures and Operational Workflow:
The IR camera monitored the surface of the steel plate during the cutting process, protected by a shield and looking through a PK7 window.
5：Data Analysis Methods:
An analytical solution of the temperature field generated on a slab by a point source moving along the x axis at velocity v was provided to interpret the temperature field experimentally obtained.
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