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New thinking in 3D printing: Welding machines replace 3D printers

by：Gewinn 2022-06-05

Professor Sasahara Hiroyuki and Abe Soji (postdoctoral fellow) from Tokyo University of Agriculture and Technology in Japan have developed a new technology for 3D printing, that is, replacing 3D printers with welding machines and achieving 3D printing effects. Compared with the existing 3D printers using metal powder, the new technology costs only 1/10, which is very cheap, and the speed can be increased by about 10 times. At present, when cutting aircraft parts and molds with complex shapes, there is a lot of residual material removed, and this technology is expected to be used in these fields. Professors and others will cooperate with enterprises to start discussions on practical application as soon as possible. It is understood that the welding machine uses argon arc welding, and the system consists of a welding device and a cooling component. Usually, the welding wire used in welding is melted by electric discharge in a new technology, and then continuously accumulated for printing. The welding wire supply part can move up and down, left and right, and the worktable on which the printing object is placed can move back and forth and rotate. The device is controlled by NC to make the desired printed object, and the operation only needs to input the design data. This technology not only greatly reduces production cost, but also shortens production cycle and delivery time.

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