Study of the material removal mechanism of glass-ceramics ...
With increases in the grinding depth, there are two main processing techniques used on hard and brittle materials: ductile-regime grinding and brittle-regime grinding. 4,5 4. Wasmer K, Ballif C, Pouvreau C et al. Dicing of gallium–arsenide high performance laser diodes for industrial applications: part I. Scratching operation. J. Mater. Process.
Study on grinding force modelling and ductile regime ...
Ductile regime grinding, proposed by Bifano, is an important method for achieving high quality surfaces of hard brittle materials (1991). Bifano also gave a theoretical description of the ductile grinding condition of different brittle materials, pointing out that ductile-regime grinding could be achieved by a small feed rate.
(PDF) Analytical modeling of ground surface topography …
Fig.8 Schematics of the material remova l mechanism in the brit tle grinding mode of brittle materials (PCZ: potential chipping zone) Except for the powder regime, it …
Specif ic grinding energy as an in-process control ...
Ductile-regime grindingis rapidly becoming an important machining process for the production of high-precision components from brittle materials.2-4 Ductile material removal is a plastic deformation process, producing a smooth surface with …
A review on ductile mode cutting of brittle materials
In order to improve the surface integrity of these materials, ductile mode cutting (DMC), also called ductile regime cutting or ductile cutting, as a promising technique, has been studied vigorously over the past decades and it is commonly understood that DMC is to remove work materials by plastic flow instead of brittle fracture deriving a damage-free surface.
Ductile-Regime Grinding of Brittle Materials | NIST
Blaedel, K., Evans, C. and Taylor, J. (1998), Ductile-Regime Grinding of Brittle Materials, Marcel Dekker, Inc., New York, NY (Accessed December 5, 2021)
Ductile regime grinding of ferrite with variation of grain ...
Ductile regime grinding, a new grinding technology for brittle materials, is considered as a solution of this difficult-to-cut materials grinding. It is known that a fracture mechanism of brittle materials is transient to plastic deformation in the region of extremely small depth of grinding or removal rates.
A Study of Mechanics in Brittle–Ductile Cutting Mode ...
Since the undeformed chip thickness (t u n d e f o r m e d) in ductile regime machining of brittle materials is usually at the submicron level, the behavior of single grits on the grinding wheel should resemble that of negatively raked cutting tools, and …
T. G. Bifan o Department of Aerospace and Mechanical ...
brittle-to-ductile transition in terms of the material properties of the workpiece and the rate of material removal. In this paper, three aspects of the research are described: 9 Development of a grinding apparatus capable of ductile-regime grinding on brittle materials. The relevant design features include: — Machine configuration
IOP Conference Series: Materials Science and Engineering ...
Compared to ductile materials, brittle materials require low specific grinding energy. References [1] Ductile-Regime Grinding : A New Technology for Machining Brittle Materials:T. G . Bifano, T. A . Dow, R. 0. Scattergood [2] Grinding of hard and brittle materials: Keynote paper by Inasaki, Keio University, Yokohama, Japan
Ductile-regime machining model for diamond turning of ...
However, the basic physical mechanisms underlying 'ductileregime' machining of brittle materials are not clearly understood. Several attempts to understand the ductile behaviour of brittle materials have been made 23 . The interrupted cutting test described by Blake 3A has been useful in this regard.
Ductile and brittle transition behavior of titanium alloys ...
The ductile to brittle behavior of brittle materials has been extensively investigated previously 25,26, and the ductile machining strategy is widely adopted to improve surface finishing of the ...
The mechanism of ductile deformation in ductile regime ...
Silicon Carbide (SiC) is a material with excellent mechanical and electrical properties. Much attention has been paid to the ductile regime machining of SiC in recent years, but there is still controversy regarding the mechanism of its …
CiteSeerX — Nano finish grinding of brittle materials ...
Recent developments of ductile mode machining of hard and brittle materials show that plastically deformed chip removal minimizes the subsurface damage of the workpiece. When chip deforma-tion takes place in the ductile regime, a defect-free nano-surface is possible and it completely eliminates the polishing process.
Grinding of hard and brittle materials | Semantic Scholar
Grinding of hard and brittle materials. Abstract The applications of hard and brittle materials, typically represented by advanced ceramics, for a number of high-performance components have recently generated high interest. To meet this increasing demand, high efficiency machining technologies are needed.
Ductile-Regime Grinding | Grinding (Abrasive Cutting ...
Grinding of (5) brittle materials under conditions that allow predominantly Fracture Energy jzf ductile material-removal is a new technology known as ductileConsequently, as the scale of machining decreases, plastic flow regime grinding, which is the subject of this paper. becomes an energetically more favorable material-removal mechanism.
On the design and implementation of an instrumented ...
This process is known as ductile-regime grinding. When brittle materials are ground through a process of plastic deformation, surface finishes similar to …
Study of the material removal mechanism of glass-ceramics ...
two main processing techniques used on hard and brittle materials: ductile-regime grinding and brittle-regime grinding.4,5 Compared with theductile-regimegrinding, brittle-regime grindingtendstocausesur-faceandsub-surfacedamage in themachinedworkpiece. Assuch, mill-
Atomistic insights on the nanoscale single grain ...
Bifano, T. A. Dow, and R. O. Scattergood, " Ductile regime grinding: A new technology for machining brittle materials," Journal of Engineering for Industry 113, 184 ...
Ductile-Regime Grinding: A New Technology for Machining ...
This process is known as ductile-regime grinding. When brittle materials are ground through a process of plastic deformation, surface finishes similar to those achieved in polishing or lapping are produced. Unlike polishing or lapping, however, grinding is a deterministic process, permitting finely controlled contour accuracy and complex shapes.
Towards understanding the brittle-ductile transition in ...
The brittle-ductile transition (BDT) widely exists in the manufacturing with extremely small deformation scale, thermally assisted machining, and high-speed machining. This paper reviews the BDT in extreme manufacturing. The factors affecting the BDT in extreme manufacturing are analyzed, including the deformation scale and deformation temperature …
Ductile to Transitions in Plastics
Ductile to Brittle Transitions The Madison Group 608‐231‐1907 ꞏ Source: "Ductile-To-Brittle Transition of Plastic Materials II", Advanced Materials and Processes, ASM International, February 2007, pg. 25-27 Strain Stress Ductile
Ductile regime grinding of glass and other brittle ...
Ductile regime grinding of glass and other brittle materials by the use of ultrastiff machine tools Wills-Moren, William J. 00:00:00 ABSTRACT The disadvantages oftraditional methods offorming glass and other brittle materials are discussed and relevant research work into alternative methods are reviewed. The recent work of …
Ductile Grinding of Brittle Materials - ResearchGate
For brittle materials, single-point machining was used to fabricate high-precision components for reflective mirrors and infrared detector optics. The ductile-to …
Study on the Ductile Removal Behavior of K9 Glass with ...
Ductile removal behavior of hard and brittle material in the process of machining has always been a sticking topic. A series of nanoscratch tests of K9 glass were conducted with Berkovich probe on nanoindenter XP to investigate the ductile removal process, material deformation and crack damage. It was found that the scratches surface was free from crack damage in the …
Ductile-Regime Grinding of Brittle Materials | NIST
Ductile-Regime Grinding of Brittle Materials Published January 1, 1998 Author (s) Kenneth Blaedel, Christopher J. Evans, John S. Taylor Citation Machining of Ceramics and Composites Publisher Info Marcel Dekker, Inc., New York, NY Pub Type Books Keywords brittle materials, ductile-regime, Grinding Process measurement and control Citation
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To analyze saw slicing properties and measure surface roughness, we use SEM to measure chip formation of ceramic materials. These methods can help us to know the brittle fracture mode and ductile regime grinding mode in ceramic materials remove modes. Finally, we condition parameters to gain ductile regime grinding mode of slicing ceramic ...
A review on the current research trends in ductile regime ...
12%Ductile regime machining is an alternative method for polishing of brittle materials to obtain a high quality surface finish by a ductile or plastic material removal process. Hence, there is a growing interest to study ductile regime machining over several decades.
Ductile-Regime Grinding of Brittle Materials | NIST
Ductile-Regime Grinding of Brittle Materials. Published. January 1, 1997. Author(s) Kenneth Blaedel, John S. Taylor, Christopher J. Evans. Abstract Under appropriate conditions, brittle materials may be ground to produce surfaces with no observable fracture damage. This chapter reviews the techniques for producing such surfaces and the ...
A review on ductile mode cutting of brittle materials ...
12%But obtaining smooth and damage-free surface on brittle materials by traditional machining methods like grinding, lapping and polishing is very costly and extremely time consuming. Ductile mode cutting is a very promising way to achieve high quality and crack-free surfaces of brittle materials.
A critical energy model for brittle–ductile transition in ...
The ability to predict the critical depth for ductile-mode grinding of brittle materials is important to grinding process optimization and quality control. The traditional models for predicting the critical depth are mainly concerned with the material properties without considering the operation parameters.