The relief valve, also known as the safety valve, is mainly to control the safety of pressure pipelines and containers, once the pressure exceeds the prescribed range, the safety valve tops open and discharges a portion of the gas, controlled within the safety range to ensure that the diesel engine will not be too high pressure can not withstand two safety accidents.
When machining diesel engine relief valves, the commonly used workpiece material is 20Cr, a type of quenched steel with a material hardness of HRC 55. but the quenched parts have high hardness, high strength and plasticity close to 0.
WSS PCD and CBN tools combine a high standard of chipping resistance and wear resistance for all finishing situations in hardened steel.
Tool drawing number: 072231
Workpiece name: Diesel engine relief valve
Workpiece material: 20Cr
Material hardness: HRC55
Workpiece size:φ6.9
Roughness:Rz5
Machining method: Turning, dry cutting
Machining process: Hard turning bore
Available brands: domestic
Note: More cost effective than current knives