Abstract
This paper investigates the residual stresses distributions introduced in a new generation nickel-based superalloy RR1000 by surface finish turning. The residual stresses introduced as a function of depth have been analysed for a series of machining trials with round and rhombic inserts, coated and uncoated inserts, new and worn tools, and chipped tool. The residual stress depth profiles obtained by X-ray diffraction, and layer removal show that the tool type, tool coating, tool wear and tool breakage influence the residual stress. The extent of plastic deformation for different cutting conditions has been inferred from the different peak width. Overall, residual stresses tend to have a tensile character at all depths in the hoop direction, but exhibit a significant compressively stressed zone in the radial direction.
Original language | English |
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Pages (from-to) | 4896-4902 |
Number of pages | 7 |
Journal | Journal of Materials Processing Technology |
Volume | 209 |
Issue number | 10 |
DOIs | |
Publication status | Published - 1 Jun 2009 |
Externally published | Yes |
Keywords
- Plastic work
- Superalloy
- Tooling condition
- Turning
- X-ray diffraction