contributor author | J. Sheikh-Ahmad | |
contributor author | J. A. Bailey | |
date accessioned | 2017-05-08T23:54:04Z | |
date available | 2017-05-08T23:54:04Z | |
date copyright | August, 1997 | |
date issued | 1997 | |
identifier issn | 1087-1357 | |
identifier other | JMSEFK-27299#307_1.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/119027 | |
description abstract | An experimental and analytical investigation of flow instability and shear localization in the orthogonal machining of grade 2 commercially pure titanium was made. A criterion for thermo-plastic instability was developed from torsion test results and applied to the analysis of the chip formation process. It was shown that flow instability followed by flow localization occurs when machining titanium at all cutting speeds and that a transition in the chip type from uniform to segmented does not occur. Orthogonal machining experiments were conducted in the speed range from 8.75 × 10−5 to 3.20 m/s for various depths of cut and the shear strain in the chip was calculated. It was shown that shear localization occurred in the chip formation process when the uniform shear strain involved in producing a chip segment reached a critical value and that this critical shear strain correlates fairly well with the instability shear strain predicted by the thermo-plastic instability criterion. | |
publisher | The American Society of Mechanical Engineers (ASME) | |
title | Flow Instability in the Orthogonal Machining of CP Titanium | |
type | Journal Paper | |
journal volume | 119 | |
journal issue | 3 | |
journal title | Journal of Manufacturing Science and Engineering | |
identifier doi | 10.1115/1.2831108 | |
journal fristpage | 307 | |
journal lastpage | 313 | |
identifier eissn | 1528-8935 | |
keywords | Machining | |
keywords | Flow instability | |
keywords | Titanium | |
keywords | Shear (Mechanics) | |
keywords | Torsion | |
keywords | Cutting AND Flow (Dynamics) | |
tree | Journal of Manufacturing Science and Engineering:;1997:;volume( 119 ):;issue: 003 | |
contenttype | Fulltext | |