Details
| Original language | English |
|---|---|
| Title of host publication | Achievements and Trends in Material Forming- Peer-reviewed extended papers selected from the 25th International Conference on Material Forming, ESAFORM 2022 |
| Editors | Gabriela Vincze, Frédéric Barlat |
| Pages | 1178-1187 |
| Number of pages | 10 |
| Publication status | Published - 22 Jul 2022 |
| Event | 25th International Conference on Material Forming, ESAFORM 2022 - Braga, Portugal Duration: 27 Apr 2022 → 29 Apr 2022 |
Publication series
| Name | Key Engineering Materials |
|---|---|
| Volume | 926 KEM |
| ISSN (Print) | 1013-9826 |
| ISSN (electronic) | 1662-9795 |
Abstract
Diffusion treatments offer possibilities to enhance the performance and the service lifetime of hot forging tools. In combination with coating after nitriding, the surface layer hardness can be further increased. Within the scope of this study, a surface layer hardness above 2,000 HV0.005 was determined for borided or DLC (diamond-like carbon) coated surface layers. An increased surface layer hardness improves the abrasive wear resistance of forging dies. Furthermore, the plastic deformation of thermally softened forging die areas can be reduced. Beside these desirable effects, the ductility of diffusion treated or coated near surface layers is reduced and thermomechanical cracks are promoted. Therefore, additional approaches were developed to improve the thermomechanical crack behavior of forging dies. Patterned plasmanitriding by the use of coverages to prevent areas from nitrogen diffusion, new combination processes of plasmanitrocarburizing (PNC) followed by plasmanitriding (PN) and the innovative boriding were investigated on different abstraction levels. A system of several testing rigs was set up to enable the abstraction of the thermal shock conditions in different stages. The patterned nitriding, boriding and combination plasma process (PN + PNC) were evaluated in a series of industrial field tests to derive recommendations for suitable tool treatments.
Keywords
- boriding, diamond-like carbon, diffusion treatment, Forging, load adapted modification, thermal shock condition, wear
ASJC Scopus subject areas
- Materials Science(all)
- General Materials Science
- Engineering(all)
- Mechanics of Materials
- Engineering(all)
- Mechanical Engineering
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Achievements and Trends in Material Forming- Peer-reviewed extended papers selected from the 25th International Conference on Material Forming, ESAFORM 2022. ed. / Gabriela Vincze; Frédéric Barlat. 2022. p. 1178-1187 (Key Engineering Materials; Vol. 926 KEM).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Load-Adapted Surface Modifications to Increase Lifetime of Forging Dies
AU - Paschke, Hanno
AU - Weber, Martin
AU - Brunotte, Kai
AU - Rothgänger, Marcel
AU - Petersen, Tom
AU - Siegmund, Martin
AU - Peddinghaus, Julius
N1 - Funding Information: The presented investigations are results of the completed industrial research projects: "Application of plasmaboriding processes to increase the thermal load resistance of forging dies" (19553 N), "Increasing the service life of nitrided forging dies by ductile surface layers to improve crack resistance" (19529 N) and "Adapted surface layer modifications to reduce thermal shock induced wear of forging dies" (19302 N) embedded into the program "Industrial collaborative research (IGF)" funded by the Federal Ministry of Economics and Technology (BMWi) via the AiF. The authors thank the Federal Ministery of Economics and Technology for the financial support. Additional results presented in this paper were obtained within the project (BE 1691/194-1): “Investigation for the application of metallic DLC coatings as wear protection measure for forging dies“. The authors thank the German Research Foundation (DFG) for their financial support. Funding Information: The presented investigations are results of the completed industrial research projects: "Application of plasmaboriding processes to increase the thermal load resistance of forging dies" (19553 N), "Increasing the service life of nitrided forging dies by ductile surface layers to improve crack resistance" (19529 N) and "Adapted surface layer modifications to reduce thermal shock induced wear of forging dies" (19302 N) embedded into the program "Industrial collaborative research (IGF)" funded by the Federal Ministry of Economics and Technology (BMWi) via the AiF. The authors thank the Federal Ministery of Economics and Technology for the financial support. Additional results presented in this paper were obtained within the project (BE 1691/194-1): “Investigation for the application of metallic DLC coatings as wear protection measure for forgingdies“. The authors thank the German Research Foundation (DFG) for their financial support.
PY - 2022/7/22
Y1 - 2022/7/22
N2 - Diffusion treatments offer possibilities to enhance the performance and the service lifetime of hot forging tools. In combination with coating after nitriding, the surface layer hardness can be further increased. Within the scope of this study, a surface layer hardness above 2,000 HV0.005 was determined for borided or DLC (diamond-like carbon) coated surface layers. An increased surface layer hardness improves the abrasive wear resistance of forging dies. Furthermore, the plastic deformation of thermally softened forging die areas can be reduced. Beside these desirable effects, the ductility of diffusion treated or coated near surface layers is reduced and thermomechanical cracks are promoted. Therefore, additional approaches were developed to improve the thermomechanical crack behavior of forging dies. Patterned plasmanitriding by the use of coverages to prevent areas from nitrogen diffusion, new combination processes of plasmanitrocarburizing (PNC) followed by plasmanitriding (PN) and the innovative boriding were investigated on different abstraction levels. A system of several testing rigs was set up to enable the abstraction of the thermal shock conditions in different stages. The patterned nitriding, boriding and combination plasma process (PN + PNC) were evaluated in a series of industrial field tests to derive recommendations for suitable tool treatments.
AB - Diffusion treatments offer possibilities to enhance the performance and the service lifetime of hot forging tools. In combination with coating after nitriding, the surface layer hardness can be further increased. Within the scope of this study, a surface layer hardness above 2,000 HV0.005 was determined for borided or DLC (diamond-like carbon) coated surface layers. An increased surface layer hardness improves the abrasive wear resistance of forging dies. Furthermore, the plastic deformation of thermally softened forging die areas can be reduced. Beside these desirable effects, the ductility of diffusion treated or coated near surface layers is reduced and thermomechanical cracks are promoted. Therefore, additional approaches were developed to improve the thermomechanical crack behavior of forging dies. Patterned plasmanitriding by the use of coverages to prevent areas from nitrogen diffusion, new combination processes of plasmanitrocarburizing (PNC) followed by plasmanitriding (PN) and the innovative boriding were investigated on different abstraction levels. A system of several testing rigs was set up to enable the abstraction of the thermal shock conditions in different stages. The patterned nitriding, boriding and combination plasma process (PN + PNC) were evaluated in a series of industrial field tests to derive recommendations for suitable tool treatments.
KW - boriding
KW - diamond-like carbon
KW - diffusion treatment
KW - Forging
KW - load adapted modification
KW - thermal shock condition
KW - wear
UR - http://www.scopus.com/inward/record.url?scp=85140484739&partnerID=8YFLogxK
U2 - 10.4028/p-5l24m7
DO - 10.4028/p-5l24m7
M3 - Conference contribution
AN - SCOPUS:85140484739
SN - 9783035717594
T3 - Key Engineering Materials
SP - 1178
EP - 1187
BT - Achievements and Trends in Material Forming- Peer-reviewed extended papers selected from the 25th International Conference on Material Forming, ESAFORM 2022
A2 - Vincze, Gabriela
A2 - Barlat, Frédéric
T2 - 25th International Conference on Material Forming, ESAFORM 2022
Y2 - 27 April 2022 through 29 April 2022
ER -