Tungsten-copper composite material and preparation method thereof

The invention discloses a tungsten-copper composite material and a preparation method thereof and belongs to the technical field of composite materials. According to the invention, the method comprises the following steps: firstly, enabling copper to infiltrate to the surface layer or the interior of a base material by adopting a copper infiltration method by taking a tungsten plate with a porous structure as the base material; secondly, carrying out electrodeposition copper cladding on a tungsten copper plate or a tungsten copper-tungsten-tungsten copper plate by adopting a pulse power supply in a rotating device after surface treatment; and finally, carrying out rolling leveling and annealing treatment to obtain the tungsten-copper composite material. The tungsten-copper composite material is a laminated composite metal sheet. According to the invention, electrodeposition copper cladding is carried out on the tungsten copper plate or the tungsten copper-tungsten-tungsten copper plate by adopting the pulse power supply in the rotating device, the clad copper layer is good in uniformity, intra-plate deviation is within 10%; metallic copper is good in combination effect with the base material, the copper layer is controllable in thickness, and the yield is high; and the tungsten-copper composite material prepared according to the invention can be widely applied to the fields of electronics, electric equipment, aerospace, machinery and the like.