AVANCES EN EL DESARROLLO DE UN SISTEMA DE MANUFACTURA ADITIVA BASADO EN STEP-NC

Efrain Rodriguez, Renan Bonnard, Alberto José Alvares

Abstract


El nuevo estándar de control numérico, conocido como STEP-NC, es categorizado como el futuro de los sistemas avanzados de manufactura. Mayor flexibilidad e interoperabilidad son algunos de los potenciales beneficios que ofrece STEP-NC para enfrentar los desafíos del nuevo panorama industrial que se vislumbra con el advenimiento de la Industria 4.0. Mientras tanto, la programación orientada a objeto de STEP-NC ha sido parcialmente aplicada y desarrollada hasta el momento para los procesos de mecanizado (fresado, torneado…). Pero con los procesos de manufactura aditiva no ha sucedido lo mismo y el desarrollo es aún incipiente. Este trabajo presenta los avances en el desarrollo de un nuevo sistema de manufactura aditiva basado en STEP-NC, enfocándose particularmente sobre el desarrollo del modelo de información. EL modelo de actividades de aplicación en la nomenclatura del IDEF0 y el modelo de referencia de aplicación en EXPRESS son presentados. El concepto AM-layer-feature ha sido introducido para definir la feature de manufactura de los procesos aditivos basados en deposición de material capa por capa. Finalmente, se presenta un programa en STEP-NC generado desde el modelo EXPRESS, el cual puede ser implementado sobre un sistema de manufactura aditiva para validar el modelo propuesto.


Keywords


manufactura aditiva; STEP-NC; cadena digital; interoperabilidad; industria 4.0

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