Sugihara, T and Saei, M and Viswanathan, K and Udupa, A (2019) Some observations on how mechanochemical effect determines deformation mode and chip morphology in cutting of metals. In: ASME 2019 14th International Manufacturing Science and Engineering Conference, MSEC 2019, 10 - 14 June 2019, Erie.
Full text not available from this repository.Abstract
We analyze unsteady plastic flow modes in cutting of metals using high-speed imaging of the deformation zone, in situ. For metals which exhibit high levels of strain hardening, the commonly assumed steady (smooth) flow is inherently unstable. Instead, the cutting is characterized by unsteady sinuous flow, with large-amplitude folding, that is triggered by a plastic buckling instability linked to the material microstructure. A mechanochemical effect caused by Al- Alcohol chemical reaction on workpiece surface, which is coupled to the unsteady flow mode, is highlighted. Experimental results reinforce the hypothesis pertaining to flow stability governing the deformation mode and chip type.
| Item Type: | Conference Paper |
|---|---|
| Publication: | ASME 2019 14th International Manufacturing Science and Engineering Conference, MSEC 2019 |
| Publisher: | American Society of Mechanical Engineers (ASME) |
| Additional Information: | The copyright for this article belongs to the American Society of Mechanical Engineers (ASME). |
| Keywords: | Deformation; Strain hardening; Surface reactions, Chip morphologies; Deformation modes; Deformation zone; High speed imaging; Large amplitude; Material microstructures; Mechanochemical effects; Plastic buckling, Morphology |
| Department/Centre: | Division of Mechanical Sciences > Mechanical Engineering |
| Date Deposited: | 05 Dec 2022 06:23 |
| Last Modified: | 05 Dec 2022 06:23 |
| URI: | https://eprints.iisc.ac.in/id/eprint/78222 |
Actions (login required)
 |
View Item |
