Function Oriented Characterization For Surface Metrology

In many technical applications, characterization of surfaces with proper parameters is the only way to obtain necessary information in order to optimize products with respect to new functional requirements. With the availability of new and sophisticated surface measurement techniques extremely high resolved topography and structure measurements are possible. Thus surfaces and their functional behaviour can be investigated in an extensive way. But now one detects that with conventional surface parameters are insufficient to provide information about the technical functional ability of the workpiece. Obtained surface data should be evaluated and condensed in a function specific way. In order to find out the appropriate parameters for characterizing the functional ability a parameterized mathematical model based on physics of the function of the surface is to be derived. By simulation the optimal parameter values can be defined. In a second step measurement procedures and evaluation algorithm must be defined in order to characterize the functional ability based on the geometrically measured surface. A concept to characterize the surface with function oriented parameters has been developed to interpret the results of measurements in a proper way. With this method, it is possible to investigate cause-effect relations and to link geometrical and functional properties of workpieces. Based on this approach two examples, wettability and friction of technical surfaces, are given.
A.Weckenmann O.Tan W.Hartmann
Quality Management and Manufacturing Metrology, University Erlangen-Nuremberg, Germany
国际会议
天津
英文
1-7
2010-09-24(万方平台首次上网日期,不代表论文的发表时间)