Process Improvement in the Manufacturing of Engine Valve

V. Mallikarjuna, K. Rajesh , S. MD. Jameel basha

pin-pin friction, Head – pin friction.

An I.C. Engine contains generally two types of valves i.e. inlet valve and exhaust valve. These valves are again classified into two types. One is mono metal and the other one is bi-metal. Mono metal valve is made by using only one metal. Bi-metal valve is made by two types of metals. Any valve is divided into two portions, one is head portion and the other one is stem portion. In bi-metal valve head and stem portion are made of different metals. Two different types of metal bars are joining by the process of friction welding. Friction welding is the process of joining two solid pieces by welding, in which heat is generated by friction between stationary and rotating work piece. After friction welding next operations are bar grinding and forging. The above process is called as Pin-Pin friction welding process. This paper aim is to convert Pin-Pin friction welding process into Head to pin friction welding. In this route forging is done only for head bar and it is joining with stem bar by the friction welding process.

10.22161/ijaers/3.10.9