Details
| Original language | English |
|---|---|
| Pages (from-to) | 301-308 |
| Number of pages | 8 |
| 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
“In recent years, multi-material designs of technical components have been gaining in importance. When combining different materials in a single component, it is possible to achieve high performance and extended functionality while simultaneously saving cost-intensive or rare materials. One promising approach to manufacture hybrid parts such as bi-metal gears is the utilization of the technology of tailored forming. This technology includes three main process steps: producing of bi-metal workpieces, forming and finishing. At the example of bevel gears, bi-metal preforms were produced by laser cladding of the martensitic steel X45CrSi9-3 on a cylindrical substrate made of the carbon steel C22.8 and formed to the final gear geometry by means of hot die forging. Subsequently, the hot bevel gears were directly quenched from hot-forming temperature by an air-water spray and self-tempered using the residual heat. To analyse the effect of each process step on the microstructure, specimens were extracted from cladded, forged and heat treated components and investigated by means of metallographic analysis and hardness measurements. The results demonstrate that cladded workpieces were successfully formed to complex toothed parts without any defects. The hot forming process has a positive impact on the welded layer and the interface zone by grain refinement and the associated improved mechanical properties. The required hardness values at the tooth flanks were achieved by the integrated heat treatment".
Keywords
- Air-water spray cooling, Bevel gear, Bi-metals, Hot die-forging, Process-integrated heat treatment, Tailored forming
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. 301-308.
Research output: Contribution to journal › Conference article › Research › peer review
}
TY - JOUR
T1 - Tailored Forming of Hybrid Bevel Gears with Integrated Heat Treatment
AU - Behrens, Bernd Arno
AU - Diefenbach, Julian
AU - Chugreeva, Anna
AU - Kahra, Christoph
AU - Herbst, Sebastian
AU - Nürnberger, Florian
N1 - Funding information: The pjroect “ Maschinenintegriertes optisches Messsystem zur Elektrodenpositionierung für das elektrothermische Präzisionsabtragen - OpToPS” o is supported by the Federal Ministry of Economics and Technology following a decision of the German Bundestag under grant number ZF4028028SY7. Funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) - Project-ID 252662854 - SFB 1153. The results presented in this paper were obtained within the Collaborative Research Centre 1153 ?Process chain to produce hybrid high-performance components by Tailored Forming? in subproject A2 and B2. The authors would like to thank the subproject A4 for supplying cladded hybrid workpieces and the German Research Foundation (DFG) for the financial and organisational support of this project.
PY - 2020
Y1 - 2020
N2 - “In recent years, multi-material designs of technical components have been gaining in importance. When combining different materials in a single component, it is possible to achieve high performance and extended functionality while simultaneously saving cost-intensive or rare materials. One promising approach to manufacture hybrid parts such as bi-metal gears is the utilization of the technology of tailored forming. This technology includes three main process steps: producing of bi-metal workpieces, forming and finishing. At the example of bevel gears, bi-metal preforms were produced by laser cladding of the martensitic steel X45CrSi9-3 on a cylindrical substrate made of the carbon steel C22.8 and formed to the final gear geometry by means of hot die forging. Subsequently, the hot bevel gears were directly quenched from hot-forming temperature by an air-water spray and self-tempered using the residual heat. To analyse the effect of each process step on the microstructure, specimens were extracted from cladded, forged and heat treated components and investigated by means of metallographic analysis and hardness measurements. The results demonstrate that cladded workpieces were successfully formed to complex toothed parts without any defects. The hot forming process has a positive impact on the welded layer and the interface zone by grain refinement and the associated improved mechanical properties. The required hardness values at the tooth flanks were achieved by the integrated heat treatment".
AB - “In recent years, multi-material designs of technical components have been gaining in importance. When combining different materials in a single component, it is possible to achieve high performance and extended functionality while simultaneously saving cost-intensive or rare materials. One promising approach to manufacture hybrid parts such as bi-metal gears is the utilization of the technology of tailored forming. This technology includes three main process steps: producing of bi-metal workpieces, forming and finishing. At the example of bevel gears, bi-metal preforms were produced by laser cladding of the martensitic steel X45CrSi9-3 on a cylindrical substrate made of the carbon steel C22.8 and formed to the final gear geometry by means of hot die forging. Subsequently, the hot bevel gears were directly quenched from hot-forming temperature by an air-water spray and self-tempered using the residual heat. To analyse the effect of each process step on the microstructure, specimens were extracted from cladded, forged and heat treated components and investigated by means of metallographic analysis and hardness measurements. The results demonstrate that cladded workpieces were successfully formed to complex toothed parts without any defects. The hot forming process has a positive impact on the welded layer and the interface zone by grain refinement and the associated improved mechanical properties. The required hardness values at the tooth flanks were achieved by the integrated heat treatment".
KW - Air-water spray cooling
KW - Bevel gear
KW - Bi-metals
KW - Hot die-forging
KW - Process-integrated heat treatment
KW - Tailored forming
UR - http://www.scopus.com/inward/record.url?scp=85085488383&partnerID=8YFLogxK
U2 - 10.1016/j.promfg.2020.04.234
DO - 10.1016/j.promfg.2020.04.234
M3 - Conference article
AN - SCOPUS:85085488383
VL - 47
SP - 301
EP - 308
JO - Procedia Manufacturing
JF - Procedia Manufacturing
SN - 2351-9789
T2 - 23rd International Conference on Material Forming, ESAFORM 2020
Y2 - 4 May 2020
ER -