The temperature distribution and thermal conduction state are monitored continuously, allowing for immediate quality assessment!
The "LEXA THERMOMETER" is a monitoring system that continuously monitors the temperature distribution and thermal conduction state of the "melt pool and its surrounding area" during laser welding, allowing for immediate quality assessment. It enables visualization of the temperature convection and pulsation from the molten area to the solidified area during welding, as well as visualization of thermal conduction in the surrounding area. By analyzing the temperature afterwards, a deeper understanding of the welding state can be achieved. 【Features】 ■ Visualization of the temperature distribution of the molten area during welding ■ Visualization of the temperature distribution and thermal conduction of the solidified area during welding ■ Measurement range: Low temperature 500–1500℃, High temperature 1500–2500℃ *For more details, please download the PDF or contact us.
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The LEXA THERMOMETER captures the temperature of the molten pool, weld bead, and heat-affected zone during laser welding using a camera, visualizing and quantifying the temperature distribution. This monitoring system provides reliable method development by deriving optimal welding conditions based on thermal images that visualize temperature distribution and temperature measurement results. Additionally, by allowing users to set their own thresholds, it enables thermal management focused on temperature distribution, making it possible to manage welding quality and make immediate assessments at a different level than conventional methods.
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It is possible to visualize the temperature distribution that changes in real-time, including the temperature distribution in the molten area and the thermal effects in its surroundings. You can choose between the monochrome method and the two-color method for temperature measurement. The monochrome method measures temperature by applying emissivity correction based on the material and surface condition of the workpiece being measured. The two-color method uses two cameras to simultaneously capture images at two different wavelengths and calculates the temperature from the brightness ratio of the camera images. In the two-color method, there is no need to set the emissivity when calculating temperature. Temperature measurement is possible even for workpieces where the emissivity cannot be determined.
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You can place rectangles of any size and save the time series data of the average temperature within the rectangles. Up to four rectangles can be set. You can analyze the temperature changes in areas of interest, such as around the keyhole or in the center of the melt pool.
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At Maeda Industries, we offer a diverse range of laser devices, various peripheral equipment, and analytical instruments to achieve high-precision laser methods. Additionally, by utilizing our self-developed monitoring system for laser welding, we can visualize, measure, and instantly assess the quality of the keyhole and molten pool. This capability allows us to provide experimental results as digital data to our customers during the development of laser welding methods. As a result, we can accurately grasp the technical basis of laser welding and clarify the direction our customers should take. This leads to a significant reduction in development time and a decrease in risks when introducing laser technology, providing substantial benefits to our customers. Furthermore, the digital data obtained during the in-process phase can be used for adaptive control during laser processing, continuously maintaining the optimization of processing conditions, which contributes to quality stability.
