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| Content Provider | Springer Nature Link |
|---|---|
| Author | Baizeau, T. Campocasso, S. Fromentin, G. Besnard, R. |
| Copyright Year | 2017 |
| Abstract | The measurement of machined-part strain fields induced by the cutting process remains a challenge because of the presence of highly intensive and localised strains. In this study, a high-speed double-frame imaging device with pulsed laser lighting is used in order to obtain sharp and highly resolved images during orthogonal cutting tests performed in an aluminium alloy. The displacement fields are then measured using a global Q4–digital-image-correlation (DIC) method and several strategies, facilitating calculation of the total displacements due to the cut, along with the residual strains in the machined part. Numerical procedures are developed to manage the removed material that disturbs the DIC. An automatic primary shear angle detection procedure using DIC is also proposed. Five different markings, which are produced via chemical etching and micro blasting, are applied to the observed surfaces. Their effects on the kinematic fields and the uncertainties are then studied. Three surface parameters are proposed as indicators for determining the surface preparation suitability for the DIC. The repeatability of the kinematic fields induced during the cutting process is studied, because of the ease with which testing can be performed. Finally, the plastically deformed layer engendered by the cutting process is measured using the calculated residual strains. |
| Starting Page | 581 |
| Ending Page | 591 |
| Page Count | 11 |
| File Format | |
| ISSN | 00144851 |
| Journal | Experimental Mechanics |
| Volume Number | 57 |
| Issue Number | 4 |
| e-ISSN | 17412765 |
| Language | English |
| Publisher | Springer US |
| Publisher Date | 2017-01-30 |
| Publisher Place | New York |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Machining Orthogonal cutting Field measurement Digital image correlation High-speed imaging Continuum Mechanics and Mechanics of Materials Characterization and Evaluation of Materials Optics, Lasers, Photonics, Optical Devices Structural Mechanics Vibration, Dynamical Systems, Control Classical Mechanics |
| Content Type | Text |
| Resource Type | Article |
| Subject | Mechanics of Materials Mechanical Engineering Aerospace Engineering |
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