Valve stem processing constraints

The deformation of the bending problem of the valve stem, the problem is a commonplace talk of an old scholar. With the rapid development of science and technology, the machining accuracy of parts is becoming higher and higher. The efficiency and automation of design and manufacture are the inevitable trend in the future. The traditional method is very difficult to meet the requirements of production efficiency. Power station valve is an indispensable equipment in the power system. However, the valve stem length and diameter, coupled with the valve stem material for the not easy processing of stainless steel, stainless steel, toughness and plastic deformation are great, the cutting is not easy to separate, but in the cutting stress and high cutting heat, the stability of the austenite will be changed to a higher hardness, resulting in a hardened layer, and a long knife, cutting efficiency is low, while the tool wear serious. These problems are obstacles to the control of the valve stem processing.