Property Examination of Surface Layer of Copper Alloy Casts Based on the Example of MO59 Alloy

The paper deals with tests of surface layer properties of copper alloy casts based on the example of MO59 alloy. The main purpose of the paper is presenting hardness distributions of the analysed samples and determining the optimal technological allowance. Based on the results of the hardness distributions tests recommended technological allowances on two planes were determined. Moreover, influence of cast wall thickness on durability properties of the tested casts was determined.