Hard Turning: Chip Formation Mechanisms and Metallurgical Aspects-Reference-Cited by-同舟云学术

Hard Turning: Chip Formation Mechanisms and Metallurgical Aspects

Published:1999-10-01 Issue:3 Volume:122 Page:406-412
ISSN:1087-1357
Container-title:Journal of Manufacturing Science and Engineering
language:en
Short-container-title:

Author:

Poulachon Ge´rard¹,Moisan Alphonse L.²

Affiliation:

1. ENSAM, LaBoMaP, 71250 Cluny, France Tel: 00 33 385595330 Fax: 00 33 385595370

2. ENSAM, Me´caSurf, 13100 Aix en Provence, France Tel: 00 33 442938181 Fax: 00 33 442938100

Abstract

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]

Publisher

ASME International

Subject

Industrial and Manufacturing Engineering,Computer Science Applications,Mechanical Engineering,Control and Systems Engineering

Link

http://asmedigitalcollection.asme.org/manufacturingscience/article-pdf/122/3/406/5932727/406_1.pdf

Reference14 articles.

1. Komanduri, R., and Brown, R. H., 1981, “The Mechanics of Chip Segmentation in Machining,” ASME J. Eng. Ind., 103, No. 1, pp. 33–51.

2. Shaw, M. C., and Vyas, A., 1998, “The Mechanisms of Chip Formation With Hard Turning Steel,” Ann. CIRP, 47/1, pp. 77–82.

3. Shaw, M. C., 1967, “Assessment of Machinability,” Machinability, 11, ISI Special Report 94, The Iron and Steel Institute, London.

4. Lemaire, J. C., and Backoffen, W. A., 1972, “Adiabatic Instability in the Orthogonal Cutting of Steel,” Metall. Trans., 3, pp. 477–481.

5. Berktold, A., 1992, Drehrau¨men Geha¨rteter Stahlwerkstoffe, Doctoral Thesis, RWTH Aachen, published in VDI-Verlag.

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