On September 18, 2018, “OFweek 2018 14th China advanced laser technology application summit and annual selection and award ceremony of” vico cup “laser industry was officially held in Shanghai. Wang feng, general manager of wuhan lingyun photoelectric technology co., LTD., introduced the application of laser fine machining in advanced manufacturing of 3C electronics in the keynote speech.
Wang feng first introduced the development process of lingyun photoelectric. According to his introduction, lingyun photoelectric currently main products include precision micro removal, precision micro connection and precision fine marking three categories, in wire cutting, thin film cutting, laser paint removal, laser soft brazing, laser pointer welding, laser curing, engraving mark, color change mark and other aspects have more applications.
In the field of laser precision welding, wang feng introduced steel sheet, plastics, non-ferrous metals, nonferrous metals and refractory materials, and compared the welding laser parameters and welding effects of CW, YAG and QCW. In the specific application solution, wang feng introduced the laser in 3C electron from three angles: different thermal effect, different wavelength and different pulse width
Later, wang feng mentioned the application of laser technology in optical fiber. The traditional manufacturing technology of the end surface of optical fiber connector is easy to cause stains, scratches and other problems. The non-contact cutting with laser can effectively improve the cutting quality and efficiency. Then, he explained the characteristics and advantages of laser fiber processing technology in detail from the aspects of the influence of spot shape, incident Angle and laser parameters.
Then, wang feng introduced the application of laser circuit board cutting, including PCB circuit board, FPC flexible circuit board, soft and hard combined circuit board. Due to the different absorbance of different wavelength laser by different components of polymer, it is necessary to choose the right wavelength for processing. Ultraviolet, green light and CO2 laser can be used in the cutting technology of circuit board.
Finally, wang feng analyzed the laser fine marking technology. The application of laser precision mark in advanced manufacturing is mainly divided into four categories: carbonization mark, oxidation mark, engraving mark and color change mark, which are respectively suitable for processing various materials.