A coupled in-situ measurement of temperature and kinematic fields in Ti6A1-4V serrated chip formation at micro-scale

被引：50
作者：
Harzallah, M. [1 ]
Pottier, T. [1 ]
Gilblas, R. [1 ]
Landon, Y. [2 ]
Mousseigne, M. [2 ]
Senatore, J. [2 ]
机构：
[1] Univ Toulouse, ICA, CNRS, Mines Albi,UPS,INSA,ISAE SUPAERO, Campus Jarlard, F-81013 Albi 09, France
[2] Univ Toulouse, ICA, CNRS, Mines Albi,UPS,INSA,ISAE SUPAERO, 3 Rue Caroline Aigle, F-31400 Toulouse, France
来源：
INTERNATIONAL JOURNAL OF MACHINE TOOLS & MANUFACTURE | 2018年 / 130卷
关键词：
Primary shear zone; Digital image correlation; Infrared thermography; Micro scale; Fast imaging; DIGITAL IMAGE CORRELATION; DEFORMATION FIELD; STRAIN FIELD; PLASTIC WORK; HEAT; TI-6AL-4V; GENERATION; BEHAVIOR; SIZE; MACHINABILITY;
D O I：
10.1016/j.ijmachtools.2018.03.003
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The present paper describes and uses a novel bi-spectral imaging apparatus dedicated to the simultaneaous measurement of kinematic and thermal fields in orthogonal cutting experiment. Based on wavelength splitting, this device is used to image small scale phenomenon (about 500 x 500 mu m area) involved in the generation of serrated chips from Ti-6A1-4V titanium alloy. Small to moderate cutting speeds are investigated at 6000 images per second for visible spectrum and 600 images per second for infrared measuresments. It allows to obtain unblurred images. A specific attention is paid to calibration issue including optical distortion correction, thermal calibration and data mapping. A complex post-processing procedure based on DIC and direct solution of the heat diffusion equation is detailed in order to obtain strain, strain-rate, temperature and dissipation fields from raw data in a finite strains framework. Finally a discussion is addressed and closely analyzes the obtained results in order to improve the understanding of the segment generation problem from a kinemtatic standpoint but also for the first time from an energetic standpoint.
引用
收藏
页码：20 / 35
页数：16
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