.... Approved for public release; distribution is unlimited. 08 08 2022 16 02 2023 16 02 2023 13 03 2023 microwave radiation thermally induced stress damage numerical modeling constitutive relations fracture machining mechanical behavior The mechanical breakdown...

...Kamlesh Joshi; Pradeep Padhamnath; Upendra Bhandarkar; Suhas S. Joshi In the past, studies on wire-electrical discharge machining (EDM) of Si wafers have often focused on the effect of energy-related parameters on various wafer characteristics. However, comprehensive treatment on analyzing...

.... , Miller , M. H. , and Qu , W. , 2000 , “ Role of Unloading in Machining of Brittle Materials ,” ASME J. Manuf. Sci. Eng. , 122 ( 3 ), pp. 452 – 462 . 10.1115/1.1285903 [4] Stojadinovic , S. , Tanovic , L. J. , and Savicevic , S. , 2015 , “ Micro-Cutting Mechanisms in Silicon...

... creep Machining Materials processing Metals Polymers Ceramics Intermetallics Composites The aim of this study is the possibility of developing a rotor blade made of a TiAl intermetallic alloy, which shows great potential for this application, thanks to its relatively low density, good...

...: Hareesh Tippur. 16 10 2016 15 12 2016 Environmental effects High-temperature creep Joining Machining Materials processing Mechanical behavior The higher efficiency of nuclear and thermal power plants is economically and environmentally beneficial [ 1 ]. The higher...

...M. N. A. Nasr; A. Ghandehariun; H. A. Kishawy One of the main challenges encountered in modeling the behavior of metal matrix composites (MMCs) during machining is the availability of a suitable constitutive equation. Currently, the Johnson–Cook (J–C) constitutive equation is being used, even...

.... Editor: Tetsuya Ohashi. 11 04 2013 07 08 2013 Accurate modeling of workpiece material behavior in machining is critical to analyze and design a process. The workpiece material behavior in the machining process involves dynamic flow stress and damage/fracture behavior, which are very...

..., and spatial coordinates has been examined in detail. The motivation behind such a study lies in correlating the failure behavior of the half-space laminate with the machining damage observed during orthogonal edge trimming experiments. The present work strives at identifying this relationship...

...Mohamed N.A. Nasr; E.-G. Ng; M. A. Elbestawi Finite element analysis was used in the current study to examine the effects of strain hardening and initial yield strength of workpiece material on machining-induced residual stresses (RS). An arbitrary–Lagrangian–Eulerian finite element model was built...

...N. Fang, Assistant Professor, Mem. ASME It has long been argued about which effect, among the effects of strain hardening, strain-rate hardening, and temperature softening, is predominant in governing the material flow stress in machining. This paper presents a new quantitative sensitivity analysis...

...Jiang Hua, Post Doctoral Researcher; Rajiv Shivpuri, Professor In machining titanium alloys with cemented carbide cutting tools, crater wear is the predominant wear mechanism influencing tool life and productivity. An analytical wear model that relates crater wear rate to thermally driven cobalt...

... becomes more compressive and almost uniform. Finally a correlation between stress pattern and crack profile, displaying the through-thickness effect was shown. internal stresses fracture machining fatigue Fourier series neutron diffraction finite element analysis aircraft testing stress...

...Stuart Barnes; Richard Morgan; Andrew Skeen Although the abrasive reinforcement in MMCs primarily controls their machining behavior, the properties of the matrix also exert an influence. A 1200 W diode laser was used, due to the large footprint (5×0.3 mm) and the short wavelength (0.94 μm) to pre...

.... A. Meguid. 07 September 1999 28 February 2001 30 09 2002 internal stresses error analysis stress measurement machining stress analysis Geometrical distortions constitute a significant problem in heavy steel construction. Distortions accumulate throughout the process...

.... Associate Editor: A. M. Rajendran. 07 08 2000 08 08 2001 26 03 2002 ductility plastic deformation machining cutting alloy steel Most machining processes produce burrs. The term burr is used to indicate the presence of material at workpiece edges which...

... September 7, 2000; revised manuscript received April 25, 2001. Associate Editor: G. Newaz. 07 09 2000 25 04 2001 26 03 2002 finite element analysis calibration internal stresses machining Hole-Drilling Method Calibration Coefficients Integral Method...

... with prescribed shape. In this paper the design of an appropriate forming machine at the laboratory scale will be presented. Moreover, the forming limits due to replastification of already completed sections of the part will be illustrated geometrically using one or two “cylinders of admissibility.” Finally...

... formation for such materials is yet to be evolved completely. In this paper, the mechanism of chip formation during machining of Al/SiCp composites based on the micro-structural analysis of chips and chip roots is presented. It was evident that the mechanism involves initiation of a gross fracture...

... of tool wear, cutting forces, surface finish and the height of the burrs produced. [S0094-4289(00)02104-6] Barnes , S. , and Pashby , I. R. , 1995 , “ Machining of Aluminum Based Metal Matrix Composites ,” Appl. Compos. Mater. , 2 , pp. 31 – 42 . Chambers , A. R. , and Stephens...

...Stuart Barnes; Michael J. Nash; Moh. H. Lim A new free-machining additive, MnX, has been reported to improve the machining performance of ferrous powder metallurgy (PM) materials. This work investigated this claim by comparing the performance of three otherwise identical PM materials containing...