Wear Behavior of Metal Bonded Grinding Tools When Grinding Ti-6Al-4V in an Oxygen-Free Atmosphere
Abstract
:1. Introduction
2. Materials and Methods
3. Results
4. Discussion
5. Conclusions
- Oxygen partial pressures corresponding to XHV environments can be generated by using a SiH4-doped argon atmosphere.
- The G-ratio increases when grinding in XHV-adequate conditions when using a cBN grinding tool and remains about the same when using a diamond grinding tool. Grinding with diamond generally results in higher G-ratios compared to cBN. Using the cBN in an XHV-adequate atmosphere, the G-ratio can be increased by up to 93% compared to grinding in air.
- Grinding forces significantly decrease when grinding in XHV-adequate conditions using a cBN grinding tool, while the forces slightly decrease when using a diamond tool.
- The grinding tool wear significantly decreases when grinding in XHV-adequate conditions using a cBN grinding tool, while the wear remains the same when using a diamond tool. Depending on the process parameters, the radial wear of the cBN tool under an XHV-adequate atmosphere can be reduced by up to 64% compared to grinding in air.
- The grinding forces directly correlate with wear when grinding with cBN tools in XHV-adequate conditions.
Author Contributions
Funding
Data Availability Statement
Conflicts of Interest
References
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Set | Abrasive Grain | Atmosphere |
---|---|---|
1 | Diamond | Air |
2 | Diamond | XHV |
3 | cBN | Air |
4 | cBN | XHV |
Set | Abrasive Grain | Atmosphere | Oxygen Partial Pressure pO2 (mbar) |
---|---|---|---|
1, 3 | Diamond, cBN | Air | ≈2.1 × 102 |
2 | Diamond | XHV | 4.6 × 10−13–2.2 × 10−17 |
2 | Diamond | XHV | 2.8 × 10−13–3.7 × 10−19 |
4 | cBN | XHV | 9.2 × 10−07–2.9 × 10−17 |
4 | cBN | XHV | 7.9 × 10−14–7.0 × 10−19 |
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Denkena, B.; Bergmann, B.; Hansen, N.; Heller, C. Wear Behavior of Metal Bonded Grinding Tools When Grinding Ti-6Al-4V in an Oxygen-Free Atmosphere. Metals 2023, 13, 1614. https://doi.org/10.3390/met13091614
Denkena B, Bergmann B, Hansen N, Heller C. Wear Behavior of Metal Bonded Grinding Tools When Grinding Ti-6Al-4V in an Oxygen-Free Atmosphere. Metals. 2023; 13(9):1614. https://doi.org/10.3390/met13091614
Chicago/Turabian StyleDenkena, Berend, Benjamin Bergmann, Nils Hansen, and Christian Heller. 2023. "Wear Behavior of Metal Bonded Grinding Tools When Grinding Ti-6Al-4V in an Oxygen-Free Atmosphere" Metals 13, no. 9: 1614. https://doi.org/10.3390/met13091614