| As a key project on laser processing and advanced manufacturing technique, laser remanufacturing technique has been widely investigated in recent years. It is very important for testing temperature field in laser processing on production line. In measuring high temperature object, CCD combined with digital image processing has been widely used. The method of digital image processing measurement of temperature field in laser molten pool has been given in the paper. The measuring temperature system and its special software based on VC++ have been developed. A lot of experiments on measuring temperature field in laser molten pool have been examined. It will be a new method for online measuring and temperature controlling in laser manufacturing.Digital image processing technology is presented to measure the temperature field of molten pool in laser manufacturing. It mainly included as follows:1. According to characteristic of laser molten pool, the method of digital image processing measurement of temperature field in laser molten pool has been presented.2. The software of measurement of temperature field in laser molten pool on real time based on Visual C++ and Windows 2000 has been developed, which consists of image gathering and data of temperature field analyzing.3. The calibration method is presented for measurement of temperature field in laser in this paper. Calibration system mainly consisted of the state standard blackbody furnace, color CCD camera, and image processing system. The experimental data has been processed by the special software.4. The temperature field in laser molten pool is measured through experiment of laser quenching, laser cladding and so on. |
PDF Full Text Request