Machine performance evaluation is vital for objectively demonstrating that a machine can meet specification, standards and quality management system, and for allowing users to make informed decisions on how to best use their resources. Although additive manufacturing offers relatively new ways to produce parts, the methods used to evaluate the performance of these machine can build off expertise developed in other applications, especially in machine tool metrology and laser beam diagnostics. Users have a variety of options to evaluate the performance of their machines, from building and measuring a test artefact, to measuring individual machine components, to somewhere in between. Rigorous methods and best practice particular to AM machines are being formalized, but much is already known and users can use this knowledge to realize their own unique methods that meet their specific applications and requirements.
Precision engineering in metal additive manufacturing