Fdrill, also known as cemented carbide hot melt drill, has been successfully applied for more than 30 years. It has changed the traditional drilling and fastening process solved the problem of tapping and fastening thin metal plates and thin metal pipes.
Fdrill is made of wear-resistant and high-temperature resistant tungsten carbide. When the high-speed rotating drill bit contacts the workpiece surface and applies downward axial pressure, the head of the hot-melt drill bit rubs against the metal and generates 650° ~ 750° high temperature, which makes the metal near the hot-melt drill soften rapidly. While the hot-melt drill extrudes and penetrates, the softened metal part is stretched into a metal batch front (boss) with three times the original thickness.
The whole process only takes 2-6 seconds, The boss can be used for extrusion tapping, thread forming, strengthening the coupling effect, and can also be used for bearing support seat, bifurcation throat connection and other purposes. Because the whole process of machining is chip-free, the processed thread can bear high tensile force and torque, which can completely replace the process of drilling before welding or riveting nut.