Details
| Original language | English |
|---|---|
| Pages (from-to) | 602-605 |
| Number of pages | 4 |
| Journal | Procedia CIRP |
| Volume | 77 |
| Early online date | 26 Sept 2018 |
| Publication status | Published - 2018 |
| Event | 8th CIRP Conference on High Performance Cutting, HPC 2018 - Budapest, Hungary Duration: 25 Jun 2018 → 27 Jun 2018 |
Abstract
In order to improve the cutting performance of PcBN tools, the cutting edge is prepared e.g. by grinding or brushing. Since PcBN is the second hardest material besides diamond, mechanical preparation of PcBN tools is associated with high wear and low productivity, which leads to high process costs. The laser preparation provides a high potential in preparing PcBN tools because of its wear free technology and its short process times. Additionally, several authors have shown that laser preparation can also lead to beneficial effects such as hardness increase or increased compressive residual stresses. Although these effects are known, they have not been linked to cutting performance of PcBN tools. This paper investigates the influence of nanosecond pulsed laser preparation of the cutting edge and the resulting surface topography on the cutting performance. Therefore, PcBN cutting tools were prepared with different laser velocities at the cutting edge and applied in high speed turning of Inconel 718. Surface integrity of the prepared tools was investigated regarding hardness, surface roughness and edge quality. Afterwards, the prepared tools are used in turning experiments, showing a decreasing flank wear of 40 % compared to reference tools. Tool life increase is linked to beneficial frictional behavior and less adhesive wear of the laser machined specimens compared to conventional tools.
Keywords
- Cubic boron nitride, Cutting edge, Laser micro machining, Turning
ASJC Scopus subject areas
- Engineering(all)
- Control and Systems Engineering
- Engineering(all)
- Industrial and Manufacturing Engineering
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In: Procedia CIRP, Vol. 77, 2018, p. 602-605.
Research output: Contribution to journal › Conference article › Research › peer review
}
TY - JOUR
T1 - Increased performance in high speed turning of Inconel 718 by laser structuring of PcBN tools
AU - Denkena, Berend
AU - Grove, Thilo
AU - Krödel, Alexander
AU - Ellersiek, Lars
N1 - Funding information: The authors thank the German Research Foundation (DFG) for the financial support within the project “KO 4293/6-1”.
PY - 2018
Y1 - 2018
N2 - In order to improve the cutting performance of PcBN tools, the cutting edge is prepared e.g. by grinding or brushing. Since PcBN is the second hardest material besides diamond, mechanical preparation of PcBN tools is associated with high wear and low productivity, which leads to high process costs. The laser preparation provides a high potential in preparing PcBN tools because of its wear free technology and its short process times. Additionally, several authors have shown that laser preparation can also lead to beneficial effects such as hardness increase or increased compressive residual stresses. Although these effects are known, they have not been linked to cutting performance of PcBN tools. This paper investigates the influence of nanosecond pulsed laser preparation of the cutting edge and the resulting surface topography on the cutting performance. Therefore, PcBN cutting tools were prepared with different laser velocities at the cutting edge and applied in high speed turning of Inconel 718. Surface integrity of the prepared tools was investigated regarding hardness, surface roughness and edge quality. Afterwards, the prepared tools are used in turning experiments, showing a decreasing flank wear of 40 % compared to reference tools. Tool life increase is linked to beneficial frictional behavior and less adhesive wear of the laser machined specimens compared to conventional tools.
AB - In order to improve the cutting performance of PcBN tools, the cutting edge is prepared e.g. by grinding or brushing. Since PcBN is the second hardest material besides diamond, mechanical preparation of PcBN tools is associated with high wear and low productivity, which leads to high process costs. The laser preparation provides a high potential in preparing PcBN tools because of its wear free technology and its short process times. Additionally, several authors have shown that laser preparation can also lead to beneficial effects such as hardness increase or increased compressive residual stresses. Although these effects are known, they have not been linked to cutting performance of PcBN tools. This paper investigates the influence of nanosecond pulsed laser preparation of the cutting edge and the resulting surface topography on the cutting performance. Therefore, PcBN cutting tools were prepared with different laser velocities at the cutting edge and applied in high speed turning of Inconel 718. Surface integrity of the prepared tools was investigated regarding hardness, surface roughness and edge quality. Afterwards, the prepared tools are used in turning experiments, showing a decreasing flank wear of 40 % compared to reference tools. Tool life increase is linked to beneficial frictional behavior and less adhesive wear of the laser machined specimens compared to conventional tools.
KW - Cubic boron nitride
KW - Cutting edge
KW - Laser micro machining
KW - Turning
UR - http://www.scopus.com/inward/record.url?scp=85057408146&partnerID=8YFLogxK
U2 - 10.1016/j.procir.2018.08.202
DO - 10.1016/j.procir.2018.08.202
M3 - Conference article
AN - SCOPUS:85057408146
VL - 77
SP - 602
EP - 605
JO - Procedia CIRP
JF - Procedia CIRP
SN - 2212-8271
T2 - 8th CIRP Conference on High Performance Cutting, HPC 2018
Y2 - 25 June 2018 through 27 June 2018
ER -