Grinding Behaviour Of Metal-Bonded Diamond Grinding Wheels With An Additive Of Chromium As A Carbide-Forming Element

Publikation: Beitrag in Buch/Bericht/Sammelwerk/KonferenzbandAufsatz in KonferenzbandForschungPeer-Review

Autoren

  • Berend Denkena
  • Benjamin Bergmann
  • Roman Lang
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Details

OriginalspracheEnglisch
Titel des SammelwerksWorld PM 2022 Congress Proceedings
ISBN (elektronisch)9781899072552
PublikationsstatusVeröffentlicht - 2022
VeranstaltungWorld PM 2022 Congress and Exhibition - Lyon, Frankreich
Dauer: 9 Okt. 202213 Okt. 2022

Publikationsreihe

NameWorld PM 2022 Congress Proceedings

Abstract

Addition of carbide-forming elements to metal-bonded diamond grinding wheels can increase the grain retention through carbide formation at the grain-bond interface. In order to investigate the effect of chromium addition, bronze-bonded diamond grinding wheels were fabricated through field assisted sintering technology. The resulting grinding layers were characterized by means of critical bond strength, hardness and density. At a sintering temperature of 720°C no carbide formation within the interface of diamond and bronze-bond was observable. The chromium particles with an average diameter of 10 µm remain unreacted und evenly distributed within the grinding layer after sintering, resulting in no significant increase in grain retention forces. Nevertheless, the chromium addition leads to a decrease of ductility of the bond, resulting in a grinding wheel surface topography were diamonds are more exposed and the bond is further recessed after machining. The thus emerging higher grain protrusion results in an improved grinding behaviour with a decrease of near 100% in process forces and increase of 446 % in G-Ratio.

ASJC Scopus Sachgebiete

Zitieren

Grinding Behaviour Of Metal-Bonded Diamond Grinding Wheels With An Additive Of Chromium As A Carbide-Forming Element. / Denkena, Berend; Bergmann, Benjamin; Lang, Roman.
World PM 2022 Congress Proceedings. 2022. (World PM 2022 Congress Proceedings).

Publikation: Beitrag in Buch/Bericht/Sammelwerk/KonferenzbandAufsatz in KonferenzbandForschungPeer-Review

Denkena, B, Bergmann, B & Lang, R 2022, Grinding Behaviour Of Metal-Bonded Diamond Grinding Wheels With An Additive Of Chromium As A Carbide-Forming Element. in World PM 2022 Congress Proceedings. World PM 2022 Congress Proceedings, World PM 2022 Congress and Exhibition, Lyon, Frankreich, 9 Okt. 2022.
Denkena, B., Bergmann, B., & Lang, R. (2022). Grinding Behaviour Of Metal-Bonded Diamond Grinding Wheels With An Additive Of Chromium As A Carbide-Forming Element. In World PM 2022 Congress Proceedings (World PM 2022 Congress Proceedings).
Denkena B, Bergmann B, Lang R. Grinding Behaviour Of Metal-Bonded Diamond Grinding Wheels With An Additive Of Chromium As A Carbide-Forming Element. in World PM 2022 Congress Proceedings. 2022. (World PM 2022 Congress Proceedings).
Denkena, Berend ; Bergmann, Benjamin ; Lang, Roman. / Grinding Behaviour Of Metal-Bonded Diamond Grinding Wheels With An Additive Of Chromium As A Carbide-Forming Element. World PM 2022 Congress Proceedings. 2022. (World PM 2022 Congress Proceedings).
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title = "Grinding Behaviour Of Metal-Bonded Diamond Grinding Wheels With An Additive Of Chromium As A Carbide-Forming Element",
abstract = "Addition of carbide-forming elements to metal-bonded diamond grinding wheels can increase the grain retention through carbide formation at the grain-bond interface. In order to investigate the effect of chromium addition, bronze-bonded diamond grinding wheels were fabricated through field assisted sintering technology. The resulting grinding layers were characterized by means of critical bond strength, hardness and density. At a sintering temperature of 720°C no carbide formation within the interface of diamond and bronze-bond was observable. The chromium particles with an average diameter of 10 µm remain unreacted und evenly distributed within the grinding layer after sintering, resulting in no significant increase in grain retention forces. Nevertheless, the chromium addition leads to a decrease of ductility of the bond, resulting in a grinding wheel surface topography were diamonds are more exposed and the bond is further recessed after machining. The thus emerging higher grain protrusion results in an improved grinding behaviour with a decrease of near 100% in process forces and increase of 446 % in G-Ratio.",
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