dc.identifier.uri |
http://dx.doi.org/10.15488/16569 |
|
dc.identifier.uri |
https://www.repo.uni-hannover.de/handle/123456789/16696 |
|
dc.contributor.author |
Denkena, B.
|
|
dc.contributor.author |
Krödel, A.
|
|
dc.contributor.author |
Lang, R.
|
|
dc.date.accessioned |
2024-03-15T08:58:02Z |
|
dc.date.available |
2024-03-15T08:58:02Z |
|
dc.date.issued |
2021 |
|
dc.identifier.citation |
Denkena, B.; Krödel, A.; Lang, R.: Fabrication and use of Cu-Cr-diamond composites for the application in deep feed grinding of tungsten carbide. In: Diamond and Related Materials 120 (2021), 108668. DOI: https://doi.org/10.1016/j.diamond.2021.108668 |
|
dc.description.abstract |
Machining of tungsten carbide requires the use of highly wear resistant grinding tools, like metal bonded grinding tools. The abrasive layer of these grinding tools can be regarded as Metal-Matrix-Composites reinforced with diamond particles. Copper-Matrix-Composites already are being used as heat sink materials through their outstanding high thermal conductivity. In this work, Cu/Diamond composites with 50 vol% diamond have been fabricated through field assisted sintering and the application of these composites as grinding layers in a deep feed grinding process of tungsten carbide was investigated. Through addition of chromium powder as a carbide former on the surface of the diamond particles, the critical bond strength and therefore the diamond grain retention was significantly increased by +363%. The addition of 2 wt% chromium to the copper matrix also resulted in a +84% increase of thermal conductivity relatively to the chromium free Cu/Diamond composite. Grinding of tungsten carbide as a dynamic stress test showed that the increased grain retention and thermal conductivity resulted in a decrease in grinding layer wear. Further chromium addition to 8 wt% chromium resulted in a decrease in thermal conductivity and the formation of adhesive cloggings on the grinding wheel surface during grinding. |
eng |
dc.language.iso |
eng |
|
dc.publisher |
Amsterdam [u.a.] : Elsevier Science |
|
dc.relation.ispartofseries |
Diamond and Related Materials 120 (2021) |
|
dc.rights |
CC BY-NC-ND 4.0 Unported |
|
dc.rights.uri |
https://creativecommons.org/licenses/by-nc-nd/4.0/ |
|
dc.subject |
Abrasion |
eng |
dc.subject |
Carbides |
eng |
dc.subject |
Composites |
eng |
dc.subject |
Cutting tools |
eng |
dc.subject |
High pressure high temperature (HTHP) |
eng |
dc.subject |
Interface characterization |
eng |
dc.subject |
Mechanical properties characterization |
eng |
dc.subject |
Synthetic diamond |
eng |
dc.subject |
Thermal properties |
eng |
dc.subject |
Wear |
eng |
dc.subject.ddc |
550 | Geowissenschaften
|
|
dc.subject.ddc |
670 | Industrielle und handwerkliche Fertigung
|
|
dc.title |
Fabrication and use of Cu-Cr-diamond composites for the application in deep feed grinding of tungsten carbide |
eng |
dc.type |
Article |
|
dc.type |
Text |
|
dc.relation.issn |
0925-9635 |
|
dc.relation.doi |
https://doi.org/10.1016/j.diamond.2021.108668 |
|
dc.bibliographicCitation.volume |
120 |
|
dc.bibliographicCitation.firstPage |
108668 |
|
dc.description.version |
publishedVersion |
eng |
tib.accessRights |
frei zug�nglich |
|
dc.bibliographicCitation.articleNumber |
108668 |
|