The influence of the carbon content on the machinability of sintered valve plates

The quality of processedsinteredvalveplatesdepends on variousfactorsderiving both from thecharacteristics ofthe rawmaterial and the grinding process.The change of valve plate’s materialis defined based on the requirementsto reducethe priceof the inputmaterial.This paperexamines the impact of the carbon content on themachinability ofsinteredvalve plates. In evaluation the highest level of attention has been given to parameters critical to quality (CTQ - critical to quality), and that using the Minitab statistic tools.