| abstract |
A method for preparing a diamond/copper composite material combined with 3D printing technology belongs to the field of diamond composite materials. The present invention adopts the salt bath plating technology to plate a layer of uniform Cr 7 C 3 on the diamond surface to improve the wettability of diamond and copper, and then adopts the electroless plating method to continue copper plating on the surface of the Cr 7 C 3 layer, through Control the Cu 2+ content in the plating solution to control the thickness of the copper plating layer, thereby preparing double-coated Cu‑Cr 7 C 3 ‑Diamond powder. 3D printing technology is used to laser clad the double-coated diamond powder, and the copper-coated layer on the surface of the diamond particles is melted and bonded to each other to form a porous preform skeleton with a specific shape, and then put into the open-flap graphite mold to infiltrate copper through pressureless Liquid preparation of diamond/copper composite parts with complex shapes. This process can prepare composite materials with uniform structure and high density, and can also directly prepare diamond/copper composite parts with complex shapes, which solves the difficulty that diamond/copper composite materials are difficult to machine, and can be customized according to demand. . |