Form Error Estimation Using Spatial Statistics

摘要

Form error estimation is an essential step in theassessment of product geometry created through one or moremanufacturing processes. We present a new method using spatialstatistics to estimate form error. Using large sets of uniformsample points measured from five common machined surfaces,we compare the form error estimates using individual points andfitted surfaces obtained through spatial statistical methods. Theresults show that spatial statistics can provide more accurateestimates of from error under certain conditions.