Alphonse L. Moisan
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Alphonse L. Moisan has a total of 3 co-authors. Here are the top co-authors by number of shared publications:
- Gérard Poulachon
Arts et Metiers ParisTech, LaBoMaP
3 shared publications - I. S. Jawahir
University of Kentucky
1 shared publication - Michel Dessoly
LaBoMaP, ENSAM, 71250 Cluny, France
1 shared publication
Latest Publications
- 27 March 2006
- Published by ASME International in Journal of Manufacturing Science and Engineering
- Vol. 129 (1) , 41-47
Evaluation of Chip Morphology in Hard Turning Using Constitutive Models and Material Property Data
Modeling of machining operations requires the use of constitutive relations which could represent as close as possible the material behavior in the primary and secondary zones. The knowledge of these behavior laws involves the use of different types of sophisticated mechanical tests which should provide with sufficient accuracy the material behavior for the relevant conditions of machining. In this paper, first, the flow stress of (AISI 52100) bearing steel in its HV730 hardness state has been identified in order to assess the machinability in case of hard turning. With this, the dependence of the flow stress on strain, strain rate and temperature, which poses significant difficulty, is presented. Second, the material machinability is evaluated with a shear instability criterion, enabling the prediction of chip formation with or without the shear localization. Quick-stop tests have been carried out on the bearing steel treated at different hardness values showing the chip formation variation. Micro-hardness tests performed on these quick-stop test samples show the effects of cutting temperature. A greater understanding of applied machinability is gained through this precise study of work material physical properties and behavior.- 27 March 2006
- Published by ASME International in Journal of Manufacturing Science and Engineering
- Vol. 129 (1) , 41-47
Evaluation of Chip Morphology in Hard Turning Using Constitutive Models and Material Property Data
Modeling of machining operations requires the use of constitutive relations which could represent as close as possible the material behavior in the primary and secondary zones. The knowledge of these behavior laws involves the use of different types of sophisticated mechanical tests which should provide with sufficient accuracy the material behavior for the relevant conditions of machining. In this paper, first, the flow stress of (AISI 52100) bearing steel in its HV730 hardness state has been identified in order to assess the machinability in case of hard turning. With this, the dependence of the flow stress on strain, strain rate and temperature, which poses significant difficulty, is presented. Second, the material machinability is evaluated with a shear instability criterion, enabling the prediction of chip formation with or without the shear localization. Quick-stop tests have been carried out on the bearing steel treated at different hardness values showing the chip formation variation. Micro-hardness tests performed on these quick-stop test samples show the effects of cutting temperature. A greater understanding of applied machinability is gained through this precise study of work material physical properties and behavior.- 1 January 2002
- Published by Elsevier in Mécanique & Industries
- Vol. 3 (4) , 291-299
Contribution à l'étude des mécanismes de coupe en tournage durA contribution to the study of the cutting mechanisms in hard turning
- 1 January 2002
- Published by Elsevier in Mécanique & Industries
- Vol. 3 (4) , 291-299
Contribution à l'étude des mécanismes de coupe en tournage durA contribution to the study of the cutting mechanisms in hard turning
- 1 October 1999
- Published by ASME International in Journal of Manufacturing Science and Engineering
- Vol. 122 (3) , 406-412
Hard Turning: Chip Formation Mechanisms and Metallurgical Aspects
A 100Cr6 (AISI E52100) steel in the hardness range of 180 to 750 HV10 was machined. Quick stop tests were carried out at various hardness values to observe the different chip formation mechanisms. A limit was found between the shearing and cracking chip formation. Experiments on the selected steel at 750 HV10 were carried out at various cutting speeds and feed rates. The “saw tooth chips” obtained were examined geometrically and metallurgically on longitudinal midsections. A relationship has been established between the chip geometry and the cutting conditions. A theoretical study of the chip shape was made, in particular its thickness. The friction stick slip velocities, and the segment apparition frequency were calculated. Each stage of the chip formation could be observed on each micrograph of Q.S.T, especially the crack initiation. A discussion on the apparition of the thin white layers is also proposed. [S1087-1357(00)01502-1]
- 1 October 1999
- Published by ASME International in Journal of Manufacturing Science and Engineering
- Vol. 122 (3) , 406-412
Hard Turning: Chip Formation Mechanisms and Metallurgical Aspects
A 100Cr6 (AISI E52100) steel in the hardness range of 180 to 750 HV10 was machined. Quick stop tests were carried out at various hardness values to observe the different chip formation mechanisms. A limit was found between the shearing and cracking chip formation. Experiments on the selected steel at 750 HV10 were carried out at various cutting speeds and feed rates. The “saw tooth chips” obtained were examined geometrically and metallurgically on longitudinal midsections. A relationship has been established between the chip geometry and the cutting conditions. A theoretical study of the chip shape was made, in particular its thickness. The friction stick slip velocities, and the segment apparition frequency were calculated. Each stage of the chip formation could be observed on each micrograph of Q.S.T, especially the crack initiation. A discussion on the apparition of the thin white layers is also proposed. [S1087-1357(00)01502-1]