Using ultrafast laser welding methods, researchers can incorporate various optical materials (such as quartz, borosilicate glass, and sapphire) into metals including aluminum, titanium, and stainless steel. This method produces very short picosecond infrared light pulses during material fusion. Duncan Hand, director and professor of the Laser Innovation Manufacturing Center at Heriot-Watt University, said: "Traditionally speaking, due to the different thermal properties of glass and metal, it is very difficult to weld different materials such as glass and metal together-high temperature and different thermal expansion Will cause glass to break. At present, equipment and products involving glass and metal are usually combined with adhesives. This process is very messy, and the bonded parts will gradually move. Deflation is also a problem because The adhesive will continuously release organic chemicals, which may lead to a shortened product life. " Hand pointed out that the parts to be welded are in close contact, and the laser is focused through the optical material, providing a very small and high-intensity point at the interface between the two materials. In this way, the research team achieved a peak power of megawatts in a region a few microns wide, forming a micro plasma surrounded by a highly restricted melting region inside the material. The team tested the welds at temperatures from -50 ° to 90 ° C, and the results showed that they were strong enough to withstand extreme conditions. Hand and his team are working with a consortium led by Oxford Laser Co., Coherent Scotland, Leonardo, and Gucci Hughes Co. to develop prototypes of laser processing systems to enable early commercialization of the technology. The development of modern technology is actually based on the progress of materials science. When people break through traditional thinking and discover a new material, the processing technology of the new material will directly determine the development speed of the material , And now people have made a breakthrough in the welding of metal and glass, perhaps a storm of technological change is coming? Source: OFweek China High-Tech Industry Portal Aluminum Windows And Doors,Aluminum Casement Window,Oem Aluminum Casement Windows,Aluminum Sliding Window Frame Guangdong Jihua Aluminium Co., LTD , https://www.jihua-alu.com
It is reported that a team of scientists from Heriot-Watt University in the United Kingdom has recently achieved the welding of glass and metal through an ultrafast laser system. This process can be used in aerospace, defense, optical technology, and healthcare manufacturing.