Investigation of diffusion behavior of carburized sheet metal in hot stamping
Today’s manufacturing of structural car body parts faces several challenges, like forming accuracy and passenger safety. Besides these two requirements, lightweight design plays an important role. One possibility to fulfill these partially rivalling demands is the application of hot stamped parts. T...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2018-01-01
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| Series: | MATEC Web of Conferences |
| Subjects: | |
| Online Access: | https://doi.org/10.1051/matecconf/201819008004 |
| _version_ | 1818614743244472320 |
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| author | Horn Alexander Merklein Marion |
| author_facet | Horn Alexander Merklein Marion |
| author_sort | Horn Alexander |
| collection | DOAJ |
| description | Today’s manufacturing of structural car body parts faces several challenges, like forming accuracy and passenger safety. Besides these two requirements, lightweight design plays an important role. One possibility to fulfill these partially rivalling demands is the application of hot stamped parts. The combination of hot forming and in die quenching reduces not only springback, but also results in tensile strengths of up to 1500 MPa. This makes a simultaneous reduction of sheet thickness and therefore weight reduction possible. Further development enabled a tailored adjustment of mechanical properties, for example by applying different cooling conditions along the parts. One of the biggest issues of these state of the art processes is the formation of a transition zone due to heat transfer. A promising approach to adjust the mechanical properties with a minimized transition zone is the carburization of sheet metal. Therefore, the parts are coated with graphite, heat treated and subsequently quenched. In this work, the time variant process of carbon diffusion is investigated. Sheets with two different thicknesses are carburized and quenched. The resulting mechanical properties are analyzed using uniaxial tensile tests and microhardness measurements. The results are correlated with the carbon content measured by EDX-analysis. |
| first_indexed | 2024-12-16T16:22:52Z |
| format | Article |
| id | doaj.art-a937f0f35524490ab01fbe3411a27415 |
| institution | Directory Open Access Journal |
| issn | 2261-236X |
| language | English |
| last_indexed | 2024-12-16T16:22:52Z |
| publishDate | 2018-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | MATEC Web of Conferences |
| spelling | doaj.art-a937f0f35524490ab01fbe3411a274152022-12-21T22:24:52ZengEDP SciencesMATEC Web of Conferences2261-236X2018-01-011900800410.1051/matecconf/201819008004matecconf_icnft2018_08004Investigation of diffusion behavior of carburized sheet metal in hot stampingHorn AlexanderMerklein MarionToday’s manufacturing of structural car body parts faces several challenges, like forming accuracy and passenger safety. Besides these two requirements, lightweight design plays an important role. One possibility to fulfill these partially rivalling demands is the application of hot stamped parts. The combination of hot forming and in die quenching reduces not only springback, but also results in tensile strengths of up to 1500 MPa. This makes a simultaneous reduction of sheet thickness and therefore weight reduction possible. Further development enabled a tailored adjustment of mechanical properties, for example by applying different cooling conditions along the parts. One of the biggest issues of these state of the art processes is the formation of a transition zone due to heat transfer. A promising approach to adjust the mechanical properties with a minimized transition zone is the carburization of sheet metal. Therefore, the parts are coated with graphite, heat treated and subsequently quenched. In this work, the time variant process of carbon diffusion is investigated. Sheets with two different thicknesses are carburized and quenched. The resulting mechanical properties are analyzed using uniaxial tensile tests and microhardness measurements. The results are correlated with the carbon content measured by EDX-analysis.https://doi.org/10.1051/matecconf/201819008004Hot stampingHeat treatmentCarburization |
| spellingShingle | Horn Alexander Merklein Marion Investigation of diffusion behavior of carburized sheet metal in hot stamping MATEC Web of Conferences Hot stamping Heat treatment Carburization |
| title | Investigation of diffusion behavior of carburized sheet metal in hot stamping |
| title_full | Investigation of diffusion behavior of carburized sheet metal in hot stamping |
| title_fullStr | Investigation of diffusion behavior of carburized sheet metal in hot stamping |
| title_full_unstemmed | Investigation of diffusion behavior of carburized sheet metal in hot stamping |
| title_short | Investigation of diffusion behavior of carburized sheet metal in hot stamping |
| title_sort | investigation of diffusion behavior of carburized sheet metal in hot stamping |
| topic | Hot stamping Heat treatment Carburization |
| url | https://doi.org/10.1051/matecconf/201819008004 |
| work_keys_str_mv | AT hornalexander investigationofdiffusionbehaviorofcarburizedsheetmetalinhotstamping AT merkleinmarion investigationofdiffusionbehaviorofcarburizedsheetmetalinhotstamping |