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Coin minting by additive manufacturing and forming
- Source :
- Repositório Científico de Acesso Aberto de Portugal, Repositório Científico de Acesso Aberto de Portugal (RCAAP), instacron:RCAAP
- Publication Year :
- 2021
- Publisher :
- Sage Publications, 2021.
-
Abstract
- Additive manufacturing is proposed as a novel alternative to coin blank’s production routes based on rolling, blanking and edge rimming. The presentation draws from laser powder bed fusion of cylinders, slicing into individual coin blanks by electro discharge machining and surface preparation by polishing, to coin minting in a laboratory press-tool system. Special emphasis is given to material deposition and coin minting due to the originality of producing coin blanks with complex intricate contoured holes and to the necessity of subjecting the additive manufactured coin blanks to extreme compressive stresses that are typical of coin minting. Numerical and experimental results confirm the excellent performance of the additive manufactured coin blanks. The new design layouts included in the additive manufactured coin blanks open the way to produce high value-added singular collector coins, which are disruptively different from those available in the market nowadays.
- Subjects :
- 0209 industrial biotechnology
Finite element method
Materials science
Additive manufacturing
Mechanical Engineering
Coin minting
Mechanical engineering
02 engineering and technology
Edge (geometry)
Laser
Blank
Industrial and Manufacturing Engineering
law.invention
020303 mechanical engineering & transports
020901 industrial engineering & automation
0203 mechanical engineering
Hybrid process
law
Powder bed
Blanking
Experimentation
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- Repositório Científico de Acesso Aberto de Portugal, Repositório Científico de Acesso Aberto de Portugal (RCAAP), instacron:RCAAP
- Accession number :
- edsair.doi.dedup.....3582b6d32bfb3f1a49591f8f7e5f7eaf