Process capability management for selective laser melting

摘要: This research was undertaken to improve the understanding of selective laser melting (SLM) manufacturing process. It engineers an approach that can provide quantitative evidence SLM process integrity. needed underpin acceptance components. The established assessment technique be applied manage capability machines. will enable more effective set-up and control. in turn improvements provides a basis for informed product design manufacture. This investigated application Renishaw productive pyramid (PPP) resulting SLM-PPP better quality control management Ishikawa fishbone diagrams have been provided each four layers SLM-PPP. These researchers original equipment manufacturers foundation used understand variables affect builds. framework further developed future. An arrangement 12 artefacts on build plate specifically engineered this project direct comparisons assessments build. A co-ordinate measuring machine (CMM) measure artefacts. suitability CMM evaluated ensure it could repeatable reproducible data. gauge evaluation specified measurement validated assured. engineered, tested. shown accuracy precision required context test piece features, had not previously proven. An accumulative ranking matrix developed, providing novel method combining various feature measurements into visually appealing format, which is easier evaluate. tested, then adopted inform remaining undertaken. combined with assure quality. specific parts produced set locations after Data from these feed back setting stage and/or accuracy. individual artefact make has enacted correctly.