Hiroshima University researchers have successfully 3D printed industrial-grade tungsten carbide (WC-Co) using a specialized hot-wire laser irradiation method.

Hiroshima University researchers have successfully 3D printed industrial-grade tungsten carbide (WC-Co) using a specialized hot-wire laser irradiation method. This technique utilizes a nickel-alloy middle layer to prevent material decomposition, achieving a hardness over 1,400 HV. By avoiding full melting of feedstock, the process eliminates grain growth issues that previously hindered AM of refractory metals. This breakthrough reduces the waste of expensive raw materials while enabling the fabrication of high-performance, complex cutting tools. 🛠️ #3DPrinting #AdditiveManufacturing #MaterialsScience #TungstenCarbide