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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.

Cited by: 1023

Ductile-Regime Grinding of Brittle Materials NIST

Ductile-Regime Grinding of Brittle Materials. Published. January 1, 1997. 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 mechanisms of material removal involved. ductile grinding, glass

Author: Kenneth Blaedel, John S. Taylor, Christopher J. Evans

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 . 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

Cited by: 16

Ductile or partial ductile mode machining of brittle materials

For the ductile mode grinding of hard and brittle materials, the critical machining depth ranges from 50 nm to 1 m [20]. To perform 100% ductile mode machining of brittle materials, machine tools with high-accuracy servomechanisms (resolution 1.25–10 nm), high loop stiffness, and full ﬂood

A review on ductile mode cutting of brittle materials

Feb 14, 2018Brittle materials have been widely employed for industrial applications due to their excellent mechanical, optical, physical and chemical properties. 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.

Cited by: 12

Machining Brittle Materials Innovative Fabrication Inc.

Dec 16, 2014Ductile regime grinding is an effective machining process that has been used for brittle materials for several years now. In ductile regime grinding, material is removed through plastic deformation, which reduces the risk of fractures and compromised materials. Regime grinding also eliminates or minimizes the need for polishing and lapping

A review on the current research trends in ductile regime

Feb 09, 2012Ductile 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. This stone reviews current state of research and development in ductile regime machining. The research and development

Cited by: 57

T. G. Bifan o Department of Aerospace and Mechanical

in the grinding of brittle materials. The results of this inves-tigation lend strong evidence in support of the ductile-regime grinding hypothesis. Also, a model is proposed, defining the brittle-to-ductile transition in terms of the material properties of the workpiece and the rate of material removal.

Analytical modeling of ground surface topography in

Grinding process of monocrystalline silicon easily leads to fractured surfaces, therefore an analytical model of the ground silicon surface is presented. In the model, the ductile-regime effect is considered by determining grain-workpiece interaction mode (ductile and brittle modes) at each grinding moment.

Cited by: 23

Difference Between Ductile Material and Brittle Material

Similarities and differences between ductile material and brittle material are provided in this article. At a particular temperature, a ductile material exhibits substantial plastic deformation under external loading, while a brittle material breaks with negligible plastic deformation under tensile stress.

Difference Between Ductile Material and Brittle Material

Similarities and differences between ductile material and brittle material are provided in this article. At a particular temperature, a ductile material exhibits substantial plastic deformation under external loading, while a brittle material breaks with negligible plastic deformation under tensile stress.

Influence of the Grinding Wheel in the Ductile Grinding of

Ductile Regime Grinding: A New Technology for Machining Brittle Materials Kanai, A., and Miyashita, M., 1994, “Dressing of Metal Bonded Diamond Wheel by Use of Loose Abrasive Lapping for Ductile Model Grinding of Brittle Materials—Control Technology of Active Grain Protrusion,” Proceedings of the ASPE Annual Meeting, pp. 92–95. 10

Ductile-Regime Grinding Of Brittle Materials: Experimental

Ductile-regime grinding is a new technology made possible by the use of real-time control and precision engineering in the grinding process. By ensuring that the abrasive grinding forces do not exceed a threshold value, it is possible to grind materials that are normally considered "brittle" in such a way that the material removal takes place through plastic deformation rather than fracture.

Ductile Regime Grinding Brittle Materials- LfmLie Mining

Ductile Regime Grinding Brittle Materials. Ductileregime grinding of brittle materials researchgate the compression applied on the workpiece at the shear plane if it is of the hydrostatic type the brittle material can be ground in ductile mode this also increases the depth of cut considerably.

Ductile-regime machining model for ultrasonic elliptical

The ability of VAM to machine brittle materials in the ductile regime at increased depth of cut is also described. Surface quality of workpiece during ceramic grinding is an ever-increasing

Effect of cutting edge truncation on ductile-regime

Jan 01, 2006Effect of cutting edge truncation on ductile-regime grinding of hard and brittle materials Effect of cutting edge truncation on ductile-regime grinding of hard and brittle materials Kang, Xijun ; Tamaki, Jun'ichi ; Kubo, Akihiko 2006-01-01 00:00:00 Cutting edge truncation is a micro-truing process in which the diamond cutting edges of a grinding wheel are truncated and aligned at the same height.

Ductile-Regime Grinding Of Brittle Materials: Experimental

Ductile-regime grinding is a new technology made possible by the use of real-time control and precision engineering in the grinding process. By ensuring that the abrasive grinding forces do not exceed a threshold value, it is possible to grind materials that are normally considered "brittle" in such a way that the material removal takes place through plastic deformation rather than fracture

Ductile regime turning at large tool feed

exist in industrial application of ductile regime turning. One of those problems is severe wear of diamond tools because most brittle material has a higher hardness than metal [1]. Tool wear not only raises machining cost, but also degrades product quality. Most available literature on ductile regime turning is

Difference Between Ductile and Brittle Definition

Jan 18, 2018Materials can be named as ductile materials or brittle materials based on their response to an applied stress on them. The main difference between ductile and brittle materials is that ductile materials are able to be drawn out into thin wires whereas brittle materials

Realization of ductile regime machining in micro-milling

Realization of ductile regime machining in micro-milling SiCp/Al composites and selection of cutting parameters Analytical model to determine the critical feed per edge for ductile-brittle transition in milling process of brittle materials. X Study of the mechanism of ductile-regime grinding of SiCp/Al composites using finite element

Ultraprecision machining of micro-structured functional

A machining model has been developed for FTS diamond turning of micro-structured functional surfaces to ensure ductile regime machining of brittle materials, in which the material is removed by both plastic deformation and brittle fracture, but the cracks produced are

Specif ic grinding energy as an in-process control

This article addresses the problem of monitoring the material removal regime (ductile versus brittle) that occurs during the grinding of brittle materials. Often a ductile grinding regime is desired, but currently there is no way to measure the grinding ductility

CiteSeerX — Materials

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.

Ultra-precision Machining of Hard and Brittle Materials

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

Ductile-Regime Grinding Of Brittle Materials: Experimental

Ductile-regime grinding is a new technology made possible by the use of real-time control and precision engineering in the grinding process. By ensuring that the abrasive grinding forces do not exceed a threshold value, it is possible to grind materials that are normally considered "brittle" in such a way that the material removal takes place through plastic deformation rather than fracture

Ultraprecision machining of micro-structured functional

A machining model has been developed for FTS diamond turning of micro-structured functional surfaces to ensure ductile regime machining of brittle materials, in which the material is removed by both plastic deformation and brittle fracture, but the cracks produced are

Specif ic grinding energy as an in-process control

This article addresses the problem of monitoring the material removal regime (ductile versus brittle) that occurs during the grinding of brittle materials. Often a ductile grinding regime is desired, but currently there is no way to measure the grinding ductility

CiteSeerX — Materials

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.

Ultra-precision Machining of Hard and Brittle Materials

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

Ductility Wikipedia

The ductile–brittle transition temperature (DBTT), nil ductility temperature (NDT), or nil ductility transition temperature of a metal is the temperature at which the fracture energy passes below a predetermined value (for steels typically 40 J for a standard Charpy impact test). DBTT is important since, once a material is cooled below the

Recent developments in grinding of advanced materials

2 Grinding of brittle materials Many advanced materials such as ceramics, silicon and optical glass are hard and brittle materials. Since 1980s, ductile regime grinding of brittle materials has been and is continuing to be an intensive research area because of its

Ultraprecision, high stiffness CNC grinding machines for

Under certain controlled conditions it is now possible to machine brittle materials such as glasses and ceramics using single or multi-point diamond tools (grinding), so that material is removed by plastic flow, leaving crack-free surfaces. This process is called 'shear' or 'ductile' mode grinding.

Realization of ductile regime machining in micro-milling

Realization of ductile regime machining in micro-milling SiCp/Al composites and selection of cutting parameters Analytical model to determine the critical feed per edge for ductile-brittle transition in milling process of brittle materials. X Study of the mechanism of ductile-regime grinding of SiCp/Al composites using finite element

What are ductile and brittle materials? Explain with

Ductile materials are those which can be drawn into wires when tension is applied,And can be drawn into sheet when compressive load is applied For the above mentioned properties the material should have a tendency to elongate i.e for lower value...

Ductile Mode Machining of Glass (Glass Cutting)

Jul 22, 2014Introduction Background and Scope of Ductile Mode Machining of Glass Glass a brittle material. Very difficult to machine material. Functional material for optics and electronics. Conventional grinding process causes surface damages. For better surface finish glass must be machined in ductile

Ductile regime grinding of ferrite with variation of grain

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. In this , the ductile regime grinding experiment of ferrite with variation of

Ductile and brittle transition behavior of titanium alloys

Cutting a groove with tilted angle was a common methodology for determining the deformation regime of brittle materials in R. O. Ductile-regime grinding: a new technology for machining brittle

A Study of Mechanics in Brittle–Ductile Cutting Mode

Brittle–ductile cutting mode transition is an important phenomenon in the ultra-precision machining of brittle materials [1,2,3,4]. Almost all the brittle materials could be machined in the ductile mode when the undeformed chip thickness ( t u n d e f o r m e d ) decreases to be sufficiently small, typically at submicron level [ 5,6,7 ].