Details
| Original language | English |
|---|---|
| Pages (from-to) | 445-449 |
| Number of pages | 5 |
| Journal | Procedia Manufacturing |
| Volume | 47 |
| Early online date | 26 Apr 2020 |
| Publication status | Published - 2020 |
| Event | 23rd International Conference on Material Forming, ESAFORM 2020 - Cottbus, Germany Duration: 4 May 2020 → … |
Abstract
The manufacturing of complex drivetrain components made of steel requires multi-stage manufacturing processes, resulting in long processing times and high costs. Forged parts get their final geometry after multi-stage forming operations. One approach to shorten such process chains is close contour casting of steel preforms and a single subsequent forming step to achieve high strength properties similar to those of multi-stage forged parts. Since the application of precision forging using cast steel preforms has been studied insufficiently up to now, the manufacturing of cylindrical preforms made of the low-alloy heat-treatable steel G42CrMo4 by sand casting was investigated. Using casting simulations, suitable casting parameters for the finished casting systems were identified and nearly pore-free preforms were achieved. Depending on the casting system, metallographic investigations revealed different fractions of bainite in the microstructure of the casted preforms. Subsequently, the cylinders were deformed in upsetting experiments by which the remaining porosity could be eliminated. The numerical casting simulation was combined with a forming simulation to model the reduction in porosity and to allow the prediction of the densification behavior in further research employing more complex geometries.
Keywords
- Casting and forging simulation, G42CrMo4, Reduction in porosity, Sand casting
ASJC Scopus subject areas
- Engineering(all)
- Industrial and Manufacturing Engineering
- Computer Science(all)
- Artificial Intelligence
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In: Procedia Manufacturing, Vol. 47, 2020, p. 445-449.
Research output: Contribution to journal › Conference article › Research › peer review
}
TY - JOUR
T1 - Casting Manufacturing of Cylindrical Preforms Made of Low Alloy Steels
AU - Demler, Eugen
AU - Götze, Stanislav
AU - Herbst, Sebastian
AU - Nürnberger, Florian
AU - Maier, Hans Jürgen
AU - Ursinus, Jonathan
AU - Büdenbender, Christoph
AU - Behrens, Bernd Arno
N1 - Funding information: This research is supported by a research grant from Science Foundation Ireland (I)SF under Grant Number 16/RC/3872 and is co-funded under the European eR gional Development Fund. N.E. Gorji a cknolw edge s the New Foundation Award (No. P60687) received from Irish esearR ch Council (2019) and the ECIU esearR ch Mobility aaw rd 2018 (No. P60617) . Funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) - 351032371.
PY - 2020
Y1 - 2020
N2 - The manufacturing of complex drivetrain components made of steel requires multi-stage manufacturing processes, resulting in long processing times and high costs. Forged parts get their final geometry after multi-stage forming operations. One approach to shorten such process chains is close contour casting of steel preforms and a single subsequent forming step to achieve high strength properties similar to those of multi-stage forged parts. Since the application of precision forging using cast steel preforms has been studied insufficiently up to now, the manufacturing of cylindrical preforms made of the low-alloy heat-treatable steel G42CrMo4 by sand casting was investigated. Using casting simulations, suitable casting parameters for the finished casting systems were identified and nearly pore-free preforms were achieved. Depending on the casting system, metallographic investigations revealed different fractions of bainite in the microstructure of the casted preforms. Subsequently, the cylinders were deformed in upsetting experiments by which the remaining porosity could be eliminated. The numerical casting simulation was combined with a forming simulation to model the reduction in porosity and to allow the prediction of the densification behavior in further research employing more complex geometries.
AB - The manufacturing of complex drivetrain components made of steel requires multi-stage manufacturing processes, resulting in long processing times and high costs. Forged parts get their final geometry after multi-stage forming operations. One approach to shorten such process chains is close contour casting of steel preforms and a single subsequent forming step to achieve high strength properties similar to those of multi-stage forged parts. Since the application of precision forging using cast steel preforms has been studied insufficiently up to now, the manufacturing of cylindrical preforms made of the low-alloy heat-treatable steel G42CrMo4 by sand casting was investigated. Using casting simulations, suitable casting parameters for the finished casting systems were identified and nearly pore-free preforms were achieved. Depending on the casting system, metallographic investigations revealed different fractions of bainite in the microstructure of the casted preforms. Subsequently, the cylinders were deformed in upsetting experiments by which the remaining porosity could be eliminated. The numerical casting simulation was combined with a forming simulation to model the reduction in porosity and to allow the prediction of the densification behavior in further research employing more complex geometries.
KW - Casting and forging simulation
KW - G42CrMo4
KW - Reduction in porosity
KW - Sand casting
UR - http://www.scopus.com/inward/record.url?scp=85085493508&partnerID=8YFLogxK
U2 - 10.1016/j.promfg.2020.04.333
DO - 10.1016/j.promfg.2020.04.333
M3 - Conference article
AN - SCOPUS:85085493508
VL - 47
SP - 445
EP - 449
JO - Procedia Manufacturing
JF - Procedia Manufacturing
SN - 2351-9789
T2 - 23rd International Conference on Material Forming, ESAFORM 2020
Y2 - 4 May 2020
ER -