Effect of ageing on machining performance of grey cast iron and its compensation by cutting speed management
(2024) In CIRP Annals- Abstract
Grey cast iron is known for its poor machinability directly after casting, but attains excellent machining performance after ageing. The present work explores the impact of cutting speed on the performance of pcBN machining for non-aged material. Findings suggest that tool wear can be minimized by identifying an optimal cutting speed that supports the formation of a stable Al2O3 and MnS build-up layer (BUL). Insufficient BUL protection accelerates pcBN wear by diffusion, while at very high speeds protective Al2O3 is replaced by weaker (Fe,Mn)2SiO4 and (Fe,Mn)O, and oxidation accelerates tool wear. The higher mechanical properties of aged GCI facilitate generation of high... (More)
Grey cast iron is known for its poor machinability directly after casting, but attains excellent machining performance after ageing. The present work explores the impact of cutting speed on the performance of pcBN machining for non-aged material. Findings suggest that tool wear can be minimized by identifying an optimal cutting speed that supports the formation of a stable Al2O3 and MnS build-up layer (BUL). Insufficient BUL protection accelerates pcBN wear by diffusion, while at very high speeds protective Al2O3 is replaced by weaker (Fe,Mn)2SiO4 and (Fe,Mn)O, and oxidation accelerates tool wear. The higher mechanical properties of aged GCI facilitate generation of high enough temperatures for stable deposition of Al2O3 BUL.
(Less)
- author
- Bushlya, Volodymyr
LU
; Lindvall, Rebecka
LU
; Lenrick, Filip
LU
; Magnusson Åberg, Lena ; M'Saoubi, Rachid LU and Ståhl, Jan Eric LU
- organization
- publishing date
- 2024-05-04
- type
- Contribution to journal
- publication status
- in press
- subject
- keywords
- Grey cast iron, Machinability, Wear
- in
- CIRP Annals
- pages
- 4 pages
- publisher
- Elsevier
- external identifiers
-
- scopus:85192051073
- ISSN
- 0007-8506
- DOI
- 10.1016/j.cirp.2024.04.061
- language
- English
- LU publication?
- yes
- additional info
- Publisher Copyright: © 2024 The Author(s)
- id
- b3d71e13-5cfa-43a4-afa7-920da9a3a7bd
- date added to LUP
- 2024-05-13 11:28:14
- date last changed
- 2024-05-13 16:07:56
@article{b3d71e13-5cfa-43a4-afa7-920da9a3a7bd, abstract = {{<p>Grey cast iron is known for its poor machinability directly after casting, but attains excellent machining performance after ageing. The present work explores the impact of cutting speed on the performance of pcBN machining for non-aged material. Findings suggest that tool wear can be minimized by identifying an optimal cutting speed that supports the formation of a stable Al<sub>2</sub>O<sub>3</sub> and MnS build-up layer (BUL). Insufficient BUL protection accelerates pcBN wear by diffusion, while at very high speeds protective Al<sub>2</sub>O<sub>3</sub> is replaced by weaker (Fe,Mn)<sub>2</sub>SiO<sub>4</sub> and (Fe,Mn)O, and oxidation accelerates tool wear. The higher mechanical properties of aged GCI facilitate generation of high enough temperatures for stable deposition of Al<sub>2</sub>O<sub>3</sub> BUL.</p>}}, author = {{Bushlya, Volodymyr and Lindvall, Rebecka and Lenrick, Filip and Magnusson Åberg, Lena and M'Saoubi, Rachid and Ståhl, Jan Eric}}, issn = {{0007-8506}}, keywords = {{Grey cast iron; Machinability; Wear}}, language = {{eng}}, month = {{05}}, publisher = {{Elsevier}}, series = {{CIRP Annals}}, title = {{Effect of ageing on machining performance of grey cast iron and its compensation by cutting speed management}}, url = {{http://dx.doi.org/10.1016/j.cirp.2024.04.061}}, doi = {{10.1016/j.cirp.2024.04.061}}, year = {{2024}}, }