New trends in manufacturing process of Down the Hole Button Bit

Down The Hole (DTH) drilling is useful producing of either straight holes as well as direction holes. The main tools which are used in DTH drilling are and DTH button bit. Down-the-hole hammer (DTH) drilling is an air hammer drilling technique designed for drilling through bedrock and features a typical drill string length of 200 m or shorter due to its technical specifications. Generally to manufacture a button bit it takes lot of time and need different machining operations. The button bit manufacturing process contains different stages from material selection to final coating. In the previous manufacturing system we are losing material. But in this paper by changing of machining we can save material, reduce production cost and also can increase production cost. This paper deals with complete manufacturing process of 8 inch DTH button bit With the focus of study on the DTH button bit manufacturing. Generally we are using EN36C for button manufacturing. The inspection of the material done by using non destructive method.