Details
| Original language | English |
|---|---|
| Article number | 116474 |
| Journal | Journal of Materials Processing Technology |
| Volume | 277 |
| Early online date | 27 Oct 2019 |
| Publication status | Published - Mar 2020 |
Abstract
Cubic crystalline boron nitride (cBN) is a highly wear resistant cutting material used for turning and milling of ferrous materials and superalloys. Due to its high hardness, this cutting material can only be mechanically finished with diamond grinding tools. The grinding tool wear is high as a consequence of the high hardness and high temperature hardness of the material. By adjusting the process variables feed rate, cutting speed and oscillation, it is possible to significantly reduce tool wear. The underlying principal mechanisms and derived process parameters are described. The contact length-specific equivalent chip thickness significantly determines the wear mechanism. Further, the kinematic number of grain engagements is influenced by the oscillation frequency. Recommendations for processing of PcBN are deduced.
Keywords
- Cutting mechanisms, Grinding, PcBN, Tool wear
ASJC Scopus subject areas
- Materials Science(all)
- Ceramics and Composites
- Materials Science(all)
- Metals and Alloys
- Engineering(all)
- Industrial and Manufacturing Engineering
- Computer Science(all)
- Computer Science Applications
Cite this
- Standard
- Harvard
- Apa
- Vancouver
- BibTeX
- RIS
In: Journal of Materials Processing Technology, Vol. 277, 116474, 03.2020.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Wear mechanism model for grinding of PcBN cutting inserts
AU - Denkena, B.
AU - Grove, T.
AU - Behrens, L.
AU - Müller-Cramm, D.
N1 - Funding Information: The research project KO4293/8-1“strategies on grinding of PcBN inserts” is funded by the German Research Foundation (DFG) .
PY - 2020/3
Y1 - 2020/3
N2 - Cubic crystalline boron nitride (cBN) is a highly wear resistant cutting material used for turning and milling of ferrous materials and superalloys. Due to its high hardness, this cutting material can only be mechanically finished with diamond grinding tools. The grinding tool wear is high as a consequence of the high hardness and high temperature hardness of the material. By adjusting the process variables feed rate, cutting speed and oscillation, it is possible to significantly reduce tool wear. The underlying principal mechanisms and derived process parameters are described. The contact length-specific equivalent chip thickness significantly determines the wear mechanism. Further, the kinematic number of grain engagements is influenced by the oscillation frequency. Recommendations for processing of PcBN are deduced.
AB - Cubic crystalline boron nitride (cBN) is a highly wear resistant cutting material used for turning and milling of ferrous materials and superalloys. Due to its high hardness, this cutting material can only be mechanically finished with diamond grinding tools. The grinding tool wear is high as a consequence of the high hardness and high temperature hardness of the material. By adjusting the process variables feed rate, cutting speed and oscillation, it is possible to significantly reduce tool wear. The underlying principal mechanisms and derived process parameters are described. The contact length-specific equivalent chip thickness significantly determines the wear mechanism. Further, the kinematic number of grain engagements is influenced by the oscillation frequency. Recommendations for processing of PcBN are deduced.
KW - Cutting mechanisms
KW - Grinding
KW - PcBN
KW - Tool wear
UR - http://www.scopus.com/inward/record.url?scp=85075378082&partnerID=8YFLogxK
U2 - 10.1016/j.jmatprotec.2019.116474
DO - 10.1016/j.jmatprotec.2019.116474
M3 - Article
VL - 277
JO - Journal of Materials Processing Technology
JF - Journal of Materials Processing Technology
SN - 0924-0136
M1 - 116474
ER -