Uma Proposta para garantia da qualidade metrológica em peças de geometria complexa

Abstract

Parts with complex geometry are of great interest in many industrial applications, either for functional or aesthetic issue. Its spread is due in part to advances in CAD/CAM systems and coordinate measuring technology. The dimensional variations of shape and surface texture are specified using geometric and dimensional tolerance. Their control typically consists of the measurement of discrete points on the surface using a coordinate measuring machine and algorithm evaluation. This paper presents a systematization of information for quality assurance of measurement through measuring machine by cartesian coordinates. The proposal was based on extensive study on the subject, the findings of problems revealed in visits to six companies and the results of case studies from a company in the automotive sector. The system focuses on the major sources of errors of coordinate measuring and proved easy to apply the selected company.