Development of a Novel Resistance Heating System for Microforming Using Surface-Modified Dies and Evaluation of Its Heating Property
For this study, a novel resistance heating system for microforming was developed using surfaces of forming dies as heating resources. The electrical resistance of the die surfaces was designed and the hard-coating material AlCrSiN was selected to coat the die surfaces for heating. To clarify the eff...
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MDPI AG
2019-04-01
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Series: | Metals |
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Online Access: | https://www.mdpi.com/2075-4701/9/4/440 |
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author | Ming Yang Tetsuhide Shimizu |
author_facet | Ming Yang Tetsuhide Shimizu |
author_sort | Ming Yang |
collection | DOAJ |
description | For this study, a novel resistance heating system for microforming was developed using surfaces of forming dies as heating resources. The electrical resistance of the die surfaces was designed and the hard-coating material AlCrSiN was selected to coat the die surfaces for heating. To clarify the effects of the thickness and modified surfaces on heating efficiency, the temperature and stress reduction were evaluated in a micro-compression test using dies coated with 0.5 and 1 μm AlCrSiN films. Furthermore, the formability was also demonstrated using 1 μm thick AlCrSiN-coated tools in a microforging test. By applying surface-modified dies to the forming processes, we found that not only was the heating efficiency improved, but also the dependence of heating on the product’s shape and the material’s electrical properties was reduced. |
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format | Article |
id | doaj.art-98920cb4256f43d985c81d1621072315 |
institution | Directory Open Access Journal |
issn | 2075-4701 |
language | English |
last_indexed | 2024-12-21T17:09:04Z |
publishDate | 2019-04-01 |
publisher | MDPI AG |
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series | Metals |
spelling | doaj.art-98920cb4256f43d985c81d16210723152022-12-21T18:56:27ZengMDPI AGMetals2075-47012019-04-019444010.3390/met9040440met9040440Development of a Novel Resistance Heating System for Microforming Using Surface-Modified Dies and Evaluation of Its Heating PropertyMing Yang0Tetsuhide Shimizu1Tokyo Metropolitan University, Tokyo 191-0065, JapanTokyo Metropolitan University, Tokyo 191-0065, JapanFor this study, a novel resistance heating system for microforming was developed using surfaces of forming dies as heating resources. The electrical resistance of the die surfaces was designed and the hard-coating material AlCrSiN was selected to coat the die surfaces for heating. To clarify the effects of the thickness and modified surfaces on heating efficiency, the temperature and stress reduction were evaluated in a micro-compression test using dies coated with 0.5 and 1 μm AlCrSiN films. Furthermore, the formability was also demonstrated using 1 μm thick AlCrSiN-coated tools in a microforging test. By applying surface-modified dies to the forming processes, we found that not only was the heating efficiency improved, but also the dependence of heating on the product’s shape and the material’s electrical properties was reduced.https://www.mdpi.com/2075-4701/9/4/440resistance heating systemsurface modificationmicroforming |
spellingShingle | Ming Yang Tetsuhide Shimizu Development of a Novel Resistance Heating System for Microforming Using Surface-Modified Dies and Evaluation of Its Heating Property Metals resistance heating system surface modification microforming |
title | Development of a Novel Resistance Heating System for Microforming Using Surface-Modified Dies and Evaluation of Its Heating Property |
title_full | Development of a Novel Resistance Heating System for Microforming Using Surface-Modified Dies and Evaluation of Its Heating Property |
title_fullStr | Development of a Novel Resistance Heating System for Microforming Using Surface-Modified Dies and Evaluation of Its Heating Property |
title_full_unstemmed | Development of a Novel Resistance Heating System for Microforming Using Surface-Modified Dies and Evaluation of Its Heating Property |
title_short | Development of a Novel Resistance Heating System for Microforming Using Surface-Modified Dies and Evaluation of Its Heating Property |
title_sort | development of a novel resistance heating system for microforming using surface modified dies and evaluation of its heating property |
topic | resistance heating system surface modification microforming |
url | https://www.mdpi.com/2075-4701/9/4/440 |
work_keys_str_mv | AT mingyang developmentofanovelresistanceheatingsystemformicroformingusingsurfacemodifieddiesandevaluationofitsheatingproperty AT tetsuhideshimizu developmentofanovelresistanceheatingsystemformicroformingusingsurfacemodifieddiesandevaluationofitsheatingproperty |