Details
| Original language | English |
|---|---|
| Pages (from-to) | 2557-2565 |
| Number of pages | 9 |
| Journal | International Journal of Advanced Manufacturing Technology |
| Volume | 90 |
| Issue number | 9-12 |
| Early online date | 19 Oct 2016 |
| Publication status | Published - Jun 2017 |
Abstract
The performance of cutting tools can be drastically affected by cutting edge preparation i.e. the presence of a radius and/or a chamfer and their dimensions can alter cutting forces and temperature and, consequently, tool life as well as the surface quality of the machined component. The aim of this work is to investigate the machinability of AISI 4140 steel hardened to 40 HRC and 50 HRC when turning with coated tungsten carbide inserts with various microgeometries (brushed edges with distinct slopes). The following aspects were considered: cutting force components, cutting temperature and machined surface roughness. In comparison with the published literature, the novelty of the present work is related to the investigation of the machinability of a hardened steel by applying a large variety of customized non-commercial cutting edge geometries. Differently from other studies, the paper presents experimental results for temperature in the contact zone employing different cutting edge geometries. Moreover, in order to explain the results, an analysis of tool-workpiece contact zone is carried out for each edge geometry. The results indicated that cutting edge microgeometry affects mainly the feed and passive force components, while the cutting force, specific energy and cutting temperature are not drastically altered. Finally, no clear relationship between microgeometry and machined surface roughness was noticed, although irregular marks on the roughness profile were found when sharp edges were used (suggesting edge chipping) and evidence of side flow was noted when rounded edges were tested.
Keywords
- Cutting edge preparation, Cutting force, Cutting temperature, Hardened AISI 4140 steel, Surface roughness, Turning
ASJC Scopus subject areas
- Engineering(all)
- Control and Systems Engineering
- Computer Science(all)
- Software
- Engineering(all)
- Mechanical Engineering
- Computer Science(all)
- Computer Science Applications
- Engineering(all)
- Industrial and Manufacturing Engineering
Cite this
- Standard
- Harvard
- Apa
- Vancouver
- BibTeX
- RIS
In: International Journal of Advanced Manufacturing Technology, Vol. 90, No. 9-12, 06.2017, p. 2557-2565.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - The influence of the cutting tool microgeometry on the machinability of hardened AISI 4140 steel
AU - Ventura, Carlos E.H.
AU - Chaves, Heitor S.
AU - Campos Rubio, Juan Carlos
AU - Abrão, Alexandre M.
AU - Denkena, Berend
AU - Breidenstein, Bernd
PY - 2017/6
Y1 - 2017/6
N2 - The performance of cutting tools can be drastically affected by cutting edge preparation i.e. the presence of a radius and/or a chamfer and their dimensions can alter cutting forces and temperature and, consequently, tool life as well as the surface quality of the machined component. The aim of this work is to investigate the machinability of AISI 4140 steel hardened to 40 HRC and 50 HRC when turning with coated tungsten carbide inserts with various microgeometries (brushed edges with distinct slopes). The following aspects were considered: cutting force components, cutting temperature and machined surface roughness. In comparison with the published literature, the novelty of the present work is related to the investigation of the machinability of a hardened steel by applying a large variety of customized non-commercial cutting edge geometries. Differently from other studies, the paper presents experimental results for temperature in the contact zone employing different cutting edge geometries. Moreover, in order to explain the results, an analysis of tool-workpiece contact zone is carried out for each edge geometry. The results indicated that cutting edge microgeometry affects mainly the feed and passive force components, while the cutting force, specific energy and cutting temperature are not drastically altered. Finally, no clear relationship between microgeometry and machined surface roughness was noticed, although irregular marks on the roughness profile were found when sharp edges were used (suggesting edge chipping) and evidence of side flow was noted when rounded edges were tested.
AB - The performance of cutting tools can be drastically affected by cutting edge preparation i.e. the presence of a radius and/or a chamfer and their dimensions can alter cutting forces and temperature and, consequently, tool life as well as the surface quality of the machined component. The aim of this work is to investigate the machinability of AISI 4140 steel hardened to 40 HRC and 50 HRC when turning with coated tungsten carbide inserts with various microgeometries (brushed edges with distinct slopes). The following aspects were considered: cutting force components, cutting temperature and machined surface roughness. In comparison with the published literature, the novelty of the present work is related to the investigation of the machinability of a hardened steel by applying a large variety of customized non-commercial cutting edge geometries. Differently from other studies, the paper presents experimental results for temperature in the contact zone employing different cutting edge geometries. Moreover, in order to explain the results, an analysis of tool-workpiece contact zone is carried out for each edge geometry. The results indicated that cutting edge microgeometry affects mainly the feed and passive force components, while the cutting force, specific energy and cutting temperature are not drastically altered. Finally, no clear relationship between microgeometry and machined surface roughness was noticed, although irregular marks on the roughness profile were found when sharp edges were used (suggesting edge chipping) and evidence of side flow was noted when rounded edges were tested.
KW - Cutting edge preparation
KW - Cutting force
KW - Cutting temperature
KW - Hardened AISI 4140 steel
KW - Surface roughness
KW - Turning
UR - http://www.scopus.com/inward/record.url?scp=84991786845&partnerID=8YFLogxK
U2 - 10.1007/s00170-016-9582-4
DO - 10.1007/s00170-016-9582-4
M3 - Article
AN - SCOPUS:84991786845
VL - 90
SP - 2557
EP - 2565
JO - International Journal of Advanced Manufacturing Technology
JF - International Journal of Advanced Manufacturing Technology
SN - 0268-3768
IS - 9-12
ER -