Details
| Original language | English |
|---|---|
| Pages (from-to) | 61-71 |
| Number of pages | 11 |
| Journal | Production Engineering |
| Volume | 9 |
| Issue number | 1 |
| Publication status | Published - Feb 2014 |
| Externally published | Yes |
Abstract
Preforming is an essential step in flashless forging processes. This paper describes the development of a four stage process chain for flashless forging of a two cylinder crankshaft with pin and flange. The process consists of cross wedge rolling, lateral extrusion, bi-directional forging and final forming, with cross wedge rolling being the essential step. The finite-element-analysis (FEA) performed with the software Forge 3 and experimental tests are executed with different process parameters, like billet and tool temperature, rolling velocity and steel. To reduce process steps, like lateral extrusion, a direct combination of cross wedge rolling and bi-directional forging is analysed with FEA-software Forge 3 for a one cylinder crankshaft without pin and flange. The one cylinder crankshaft is selected to reduce development effort. The results of the FEA give suitable forming angles α for cross wedge rolling and several geometric parameters for a modification of the bi-directional tool.
Keywords
- Bi-directional forging, Crankshaft, Cross wedge rolling, Forging without flash, Preforming
ASJC Scopus subject areas
- Engineering(all)
- Mechanical Engineering
- Engineering(all)
- Industrial and Manufacturing Engineering
Cite this
- Standard
- Harvard
- Apa
- Vancouver
- BibTeX
- RIS
In: Production Engineering, Vol. 9, No. 1, 02.2014, p. 61-71.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Cross wedge rolling and bi-directional forging of preforms for crankshafts
AU - Meyer, Matthias
AU - Stonis, Malte
AU - Behrens, Bernd Arno
N1 - Funding information: The authors thank the German Research Foundation (Deutsche Forschungsgemeinschaft—DFG) for the funding of the Collaborative Research Project 489 “Prozesskette zur Herstellung präzisionsgeschmiedeter Hochleistungsbauteile” and the research project “ProKomb—Prozesskombination des Querkeilwalzens mit der mehrdirektionalen Umformung” (DFG STO 1011/5-1).
PY - 2014/2
Y1 - 2014/2
N2 - Preforming is an essential step in flashless forging processes. This paper describes the development of a four stage process chain for flashless forging of a two cylinder crankshaft with pin and flange. The process consists of cross wedge rolling, lateral extrusion, bi-directional forging and final forming, with cross wedge rolling being the essential step. The finite-element-analysis (FEA) performed with the software Forge 3 and experimental tests are executed with different process parameters, like billet and tool temperature, rolling velocity and steel. To reduce process steps, like lateral extrusion, a direct combination of cross wedge rolling and bi-directional forging is analysed with FEA-software Forge 3 for a one cylinder crankshaft without pin and flange. The one cylinder crankshaft is selected to reduce development effort. The results of the FEA give suitable forming angles α for cross wedge rolling and several geometric parameters for a modification of the bi-directional tool.
AB - Preforming is an essential step in flashless forging processes. This paper describes the development of a four stage process chain for flashless forging of a two cylinder crankshaft with pin and flange. The process consists of cross wedge rolling, lateral extrusion, bi-directional forging and final forming, with cross wedge rolling being the essential step. The finite-element-analysis (FEA) performed with the software Forge 3 and experimental tests are executed with different process parameters, like billet and tool temperature, rolling velocity and steel. To reduce process steps, like lateral extrusion, a direct combination of cross wedge rolling and bi-directional forging is analysed with FEA-software Forge 3 for a one cylinder crankshaft without pin and flange. The one cylinder crankshaft is selected to reduce development effort. The results of the FEA give suitable forming angles α for cross wedge rolling and several geometric parameters for a modification of the bi-directional tool.
KW - Bi-directional forging
KW - Crankshaft
KW - Cross wedge rolling
KW - Forging without flash
KW - Preforming
UR - http://www.scopus.com/inward/record.url?scp=84921909261&partnerID=8YFLogxK
U2 - 10.1007/s11740-014-0581-8
DO - 10.1007/s11740-014-0581-8
M3 - Article
AN - SCOPUS:84921909261
VL - 9
SP - 61
EP - 71
JO - Production Engineering
JF - Production Engineering
SN - 0944-6524
IS - 1
ER -