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. 2019 Mar 11;9(1):4056.
doi: 10.1038/s41598-019-40702-7.

Control of the ductile and brittle behavior of titanium alloys in diamond cutting by applying a magnetic field

W S Yip  1 , S To  2
Affiliations

Control of the ductile and brittle behavior of titanium alloys in diamond cutting by applying a magnetic field

W S Yip et al. Sci Rep. .

Abstract

As a result of extensive investigations into deformation mechanisms of titanium alloys, it has been found that ductile and brittle behavior occurs during diamond cutting of the alloys. Other than implementing ductile regime machining for improving machining performances, in this study, an application of magnetic field in diamond cutting is proposed to enhance the machining performances in both ductile and brittle deformations in diamond cutting of titanium alloys. Results from the experiments showed that under the influence of a magnetic field, the cutting heat at the tool/titanium interface decreased, and surface damages induced from the brittle deformation were remarkably suppressed. The surface quality of both ductile and brittle deformation areas was enhanced in a presence of the magnetic field, which the surface profiles were less distortive with fewer cracks and defects in brittle deformation regions, and the cutting forces at the transition point became less fluctuant and much smoother. This study contributes enhancements of machining performances in ductile and brittle machining in diamond cutting of titanium alloys, increasing the precise level of machined components made with titanium alloys.

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Conflict of interest statement

The authors declare no competing interests.

Figures

Figure 1
Figure 1
Experimental setup of diamond cutting in a presence of a magnetic field.
Figure 2
Figure 2
Locations of area A, B, and C on the machined groove of MFSs and NMFSs.
Figure 3
Figure 3
Machined groove surfaces of NMFSs generated at DOC 3–7 μm.
Figure 4
Figure 4
Machined groove surfaces of MFSs generated at DOC 3–7 μm.
Figure 5
Figure 5
Machined groove profiles of (a) NMFSs and (b) MFSs generated at DOC 3–7 μm.
Figure 6
Figure 6
Side view of machined groove of (a) MFSs and (b) NMFSs generated at DOC 3–7 μm.
Figure 7
Figure 7
Thrust forces of (a) MFSs and (b) NMFSs generated at DOC 3–7 μm.
See this image and copyright information in PMC

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