Joining of cemented carbides WC-Co and tool steel X153CrMoV12 with capacitor discharge welding process

Abstract Welding a combination of hard-to-weld materials such as cemented carbides WC-Co and tool steel X153CrMoV12 is a big challenge due to the different properties of the materials being joined. The solution can be the method of multicapacitor discharge welding, which allows high temperatures to be reached for very short times. The weld was formed continuously around the entire circumference. It has been proven that, during welding, both materials melt and mix in the joining zone. A melting zone depleted of chromium is formed.