Leave Message
For More Information

ductile regime grinding brittle materials:

Ductile-Regime Grinding Of Brittle Materials: Experimental ...

1989-1-29 · 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: A New Technology for

1991-5-1 · 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.

Ductile Grinding of Brittle Materials - ResearchGate

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 glass and other brittle ...

1990-11-1 · Ductile regime grinding of glass and other brittle materials by the use of ultrastiff machine tools Wills-Moren, William J. 1990-11-01 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 Cranfield ...

Study on grinding force modelling and ductile regime ...

2015-9-1 · 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. Liu et al. (2005) studied the nanometre-scale ductile cutting character on soda-lime glass and found the critical value when the material removal mechanism ...

Ductile or Partial Ductile Mode Machining of Brittle Materials

regime grinding of brittle materials: experimental results and the development of a model", Advances in Fabrication and Metrology for Optics and Large Optics, SPIE 966, pp.

Ductile or partial ductile mode machining of brittle

2016-8-19 · 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

Experimental studies on material removal mechanisms in ...

2021-7-21 · The first, it was the ductile-regime grinding theory of brittle materials proposed by Bifano . According to this theory, whether the material removal mechanism during UAG is brittle fracture or ductile mode depends on size relation between the a Ugmax and the critical depth of the cut.

A review on ductile mode cutting of brittle materials ...

2018-2-14 · Brittle 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. Ductile mode cutting is a very promising way to achieve high ...

Prediction of grinding force for brittle materials ...

2016-3-14 · Grinding of brittle materials is characterized by a complex removal mechanism of both ductile and brittle removal. Therefore, the traditional force models, which are mainly targeted to metallic materials, cannot be fully applied to the force prediction of brittle materials. This paper will propose a new grinding force model for brittle materials considering co-existing of ductile removal force ...

Ductile or partial ductile mode machining of brittle

2016-8-19 · 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

Ductile-Regime Grinding of Brittle Materials | NIST

1998-1-1 · Blaedel, K. , Evans, C. and Taylor, J. (1998), Ductile-Regime Grinding of Brittle Materials, Marcel Dekker, Inc., New York, NY (Accessed November 11, 2021)

Prediction of grinding force for brittle materials ...

Grinding of brittle materials is characterized by a complex removal mechanism of both ductile and brittle removal. Therefore, the traditional force models, which are mainly targeted to metallic materials, cannot be fully applied to the force prediction of brittle materials. This paper will propose a new grinding force model for brittle materials considering co-existing of ductile removal force ...

Ductile or Partial Ductile Mode Machining of Brittle Materials

regime grinding of brittle materials: experimental results and the development of a model", Advances in Fabrication and Metrology for Optics and Large Optics, SPIE 966, pp. 108–115, 1988.

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.

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.

Specif ic grinding energy as an in-process control ...

2013-1-19 · In ultraprecision grinding of brittle materials, the transition from ductile-regime grinding to brittle-regime grinding that results from an increasing grinding grain depth of cut is accompanied by a reduction in the specific grinding energy. Furthermore, as the grain depth of cut is increased beyond the transition point into purely

A Study of Scratch Speed Effects on Ductile–Brittle ...

2019-7-25 · A unique rotational double-taper scratching setup is used to study ductile brittle transitions in single crystal (100) p-type silicon using a conical diamond tool at room temperature and scratching speeds ranging between 0.1 m/s and 0.3 m/s.In such a setup, transition from brittle to ductile occurs twice in a single-tapered scratch, during tool entry and tool exit.

A review on the current research trends in ductile regime ...

2012-2-9 · 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. This paper reviews current state of research and development in ductile regime machining. The research and development associated ...

An investigation into parallel and cross grinding of BK7 ...

2006-4-1 · The precision grinding of BK7 glass in parallel and cross grinding modes has been investigated. Grinding process, maximum chip thickness, ductile/brittle regime, surface roughness and sub-surface damage have been addressed. Special attention has been given to the condition for generating a ductile mode response on the ground surface.

Ductile-Regime Grinding of Brittle Materials | NIST

1998-1-1 · Blaedel, K. , Evans, C. and Taylor, J. (1998), Ductile-Regime Grinding of Brittle Materials, Marcel Dekker, Inc., New York, NY (Accessed November 11, 2021)

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 or partial ductile mode machining of brittle

2016-8-19 · 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

Ductile or Partial Ductile Mode Machining of Brittle Materials

regime grinding of brittle materials: experimental results and the development of a model", Advances in Fabrication and Metrology for Optics and Large Optics, SPIE 966, pp. 108–115, 1988.

Ductile regime grinding of ferrite with variation of grain ...

1997-6-1 · 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.

Wheel normal grinding of hard and brittle materials ...

Ductile-regime grind-ing of brittle materials: experimental results and the development of a model High efficient precision grinding of optical glasses with the coarse-grained diamond wheel.

The Mechanism of Ductile Chip Formation in Cutting of ...

Bifano et al. [5] investigated analytically and experimentally the infeed rates necessary for ductile-regime grinding of brittle materials and showed that all brittle materials can undergo plastic ...

Comparison of materials for use in the precision grinding ...

1997-11-1 · Ductile regime grinding is the technology of grinding brittle materials at material removal rates and depth of cuts that allow for predominantly ductile removal ofmaterial as opposed to brittle fracture ofthe material. It has been hypothesized that for any material, if the material removal rate is sufficiently small, that the material removal ...

A Study of Scratch Speed Effects on Ductile–Brittle ...

2019-7-25 · A unique rotational double-taper scratching setup is used to study ductile brittle transitions in single crystal (100) p-type silicon using a conical diamond tool at room temperature and scratching speeds ranging between 0.1 m/s and 0.3 m/s.In such a setup, transition from brittle to ductile occurs twice in a single-tapered scratch, during tool entry and tool exit.

Grinding | Fracture | Dislocation

2018-1-21 · 3. B. K. A. Ngoi and P. S. Sreejith,“Ductile Regime Finish Machining – A Review” 4. H. Yoshikawa, Brittle–ductile behavior of crystal surface in finishing, Journal of JSPE 35 (1967) 662–667 5. Nakamura, Tsunetaka Sumomogi and Takayuki Goto, “Study on Ductile Mode Grinding of Brittle Materials using Single Abrasive Grain” 6.