Details
| Originalsprache | Englisch |
|---|---|
| Titel des Sammelwerks | Material Forming |
| Untertitel | The 26th International ESAFORM Conference on Material Forming – ESAFORM 2023 |
| Herausgeber/-innen | Lukasz Madej, Mateusz Sitko, Konrad Perzynsk |
| Seiten | 583-590 |
| Seitenumfang | 8 |
| Publikationsstatus | Veröffentlicht - 19 Apr. 2023 |
| Veranstaltung | 26th International ESAFORM Conference on Material Forming, ESAFORM 2023 - Kraków, Polen Dauer: 19 Apr. 2023 → 21 Apr. 2023 |
Publikationsreihe
| Name | Materials Research Proceedings |
|---|---|
| Band | 28 |
| ISSN (Print) | 2474-3941 |
| ISSN (elektronisch) | 2474-395X |
Abstract
Hot forging dies are subjected to high loads, which can lead to early tool failures. Abrasive wear, plastic deformation and thermal softening of the surface layer can be counteracted in particular by a high surface hardness. Thermochemical diffusion treatments and coatings are established as wear protection measures. DLC coatings, which feature excellent frictional properties and high hardness, are commonly applied on cold forging tools. However, the low coating adhesion to steel and the thermal stability of the diamond bond limit the current range of application. In this study, DLC coatings are applied in metallic treatment atmospheres with the aim of increasing the diamond bond’s temperature resistance. Furthermore, the influence of weak and intense nitriding to coating adhesion is investigated to reduce coating delamination. A pre-selection of modified DLC coatings for hot forging dies was carried out on the basis of hardness and scratch tests. The most promising tungsten DLC coating was tested in serial forging tests. Based on tool contour comparisons before and after forging, the potential as a wear protection measure for hot forging dies was determined. Tool wear was reduced by up to 29 % after 100 forging cycles with the tungsten DLC coating compared to the nitrided reference.
ASJC Scopus Sachgebiete
- Werkstoffwissenschaften (insg.)
- Allgemeine Materialwissenschaften
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Material Forming: The 26th International ESAFORM Conference on Material Forming – ESAFORM 2023. Hrsg. / Lukasz Madej; Mateusz Sitko; Konrad Perzynsk. 2023. S. 583-590 (Materials Research Proceedings; Band 28).
Publikation: Beitrag in Buch/Bericht/Sammelwerk/Konferenzband › Aufsatz in Konferenzband › Forschung › Peer-Review
}
TY - GEN
T1 - Hot die forging with nitrided and thermally stabilized DLC coated tools
AU - Siegmund, Martin
AU - Kipp, Christian
AU - Peddinghaus, Julius
AU - Brunotte, Kai
AU - Bräuer, Günter
AU - Behrens, Bernd Arno
N1 - Funding Information: The results presented were obtained in the research project “Investigations on the application of metal containing DLC-coatings as wear protection systems for forging dies” financed under project number 283898001 by the German Research Foundation (DFG). The authors would like to thank the German Research Foundation for the financial support.
PY - 2023/4/19
Y1 - 2023/4/19
N2 - Hot forging dies are subjected to high loads, which can lead to early tool failures. Abrasive wear, plastic deformation and thermal softening of the surface layer can be counteracted in particular by a high surface hardness. Thermochemical diffusion treatments and coatings are established as wear protection measures. DLC coatings, which feature excellent frictional properties and high hardness, are commonly applied on cold forging tools. However, the low coating adhesion to steel and the thermal stability of the diamond bond limit the current range of application. In this study, DLC coatings are applied in metallic treatment atmospheres with the aim of increasing the diamond bond’s temperature resistance. Furthermore, the influence of weak and intense nitriding to coating adhesion is investigated to reduce coating delamination. A pre-selection of modified DLC coatings for hot forging dies was carried out on the basis of hardness and scratch tests. The most promising tungsten DLC coating was tested in serial forging tests. Based on tool contour comparisons before and after forging, the potential as a wear protection measure for hot forging dies was determined. Tool wear was reduced by up to 29 % after 100 forging cycles with the tungsten DLC coating compared to the nitrided reference.
AB - Hot forging dies are subjected to high loads, which can lead to early tool failures. Abrasive wear, plastic deformation and thermal softening of the surface layer can be counteracted in particular by a high surface hardness. Thermochemical diffusion treatments and coatings are established as wear protection measures. DLC coatings, which feature excellent frictional properties and high hardness, are commonly applied on cold forging tools. However, the low coating adhesion to steel and the thermal stability of the diamond bond limit the current range of application. In this study, DLC coatings are applied in metallic treatment atmospheres with the aim of increasing the diamond bond’s temperature resistance. Furthermore, the influence of weak and intense nitriding to coating adhesion is investigated to reduce coating delamination. A pre-selection of modified DLC coatings for hot forging dies was carried out on the basis of hardness and scratch tests. The most promising tungsten DLC coating was tested in serial forging tests. Based on tool contour comparisons before and after forging, the potential as a wear protection measure for hot forging dies was determined. Tool wear was reduced by up to 29 % after 100 forging cycles with the tungsten DLC coating compared to the nitrided reference.
KW - Coating
KW - Diamond-Like Carbon
KW - Hot Die Forging
KW - Nitriding
KW - Tool Life
KW - Wear
UR - http://www.scopus.com/inward/record.url?scp=85160239199&partnerID=8YFLogxK
U2 - 10.21741/9781644902479-63
DO - 10.21741/9781644902479-63
M3 - Conference contribution
AN - SCOPUS:85160239199
SN - 9781644902462
T3 - Materials Research Proceedings
SP - 583
EP - 590
BT - Material Forming
A2 - Madej, Lukasz
A2 - Sitko, Mateusz
A2 - Perzynsk, Konrad
T2 - 26th International ESAFORM Conference on Material Forming, ESAFORM 2023
Y2 - 19 April 2023 through 21 April 2023
ER -