Geometrical shape improvement of steel moulds by robot polishing process for polymer optic replication

Autor: Mario Pohl, Anjali K. M. De Silva, Rui Almeida, David K. Harrison, Rainer Börret
Rok vydání: 2018
Předmět:
Zdroj: Production and Manufacturing Research: An Open Access Journal, Vol 6, Iss 1, Pp 247-263 (2018)
ISSN: 2169-3277
DOI: 10.1080/21693277.2018.1509743
Popis: The quality of injection-moulded polymer optic parts depends on the surface finish of the respective mould. In order to improve the surface finish of the mould, it is important to use a tactical material removal, which allows a controlled correction of the mould’s surface geometry. The aim of this work is to use a polishing correction technique to improve and correct the flatness of hardened steel samples in order to reduce the need for manual polishing. A polishing tool function is simulated from the contact between the tool and the hardened steel sample and used to determine the material removal rate per time. A feed profile is calculated, which allows the industrial robot to tactically control the material removal. It is observed that a correction improves the surface’s flatness by up to 70%.
Databáze: OpenAIRE