ductile regime grinding brittle materials

ductile regime grinding brittle materials

Recent developments in grinding of advanced materials

Abstract This article discusses the recent developments in grinding of advanced materials. Eighty-four journal papers Interest in grinding of advanced materials such as optical glass, WC, ceramics and silicon has substantially grown ductile regime grinding of brittle materials has been and is

Ductile-Regime Grinding of Brittle Materials | NIST

Publisher Info: Marcel Dekker, Inc.,New York, NY. Pub Type: Books Keywords

Ductile-Regime Grinding | Grinding (Abrasive Cutting

ductile regime grinding brittle materials The Evolution of Ductile-Regime Grinding The possibility of grinding brittle materials in a ductile manner was proposed as early as 1954. The first systematic studies of grinding ductility were performed using a single grit grinding apparatus. 1979. 1985).

Ductile Regime Nanomachining of Single-Crystal Silicon Carbide

Ductile Regime Nanomachining of Single-Crystal Silicon Carbide We have demonstrated the ability to perform a ductile material removal operation, via single-point diamond turning, on single-crystal silicon carbide (6H). To our knowledge, this is the first reported work on the ductile machining of single-crystal silicon carbide (SiC).

Ductile-regime machining model for diamond turning of

ductile regime grinding brittle materials Ductile-regime machining model for diamond turning of brittle materials W. S. Blackley and R. O. Scattergood* A new machining model has been developed for single point diamond turning of brittle materials.

Machining Brittle Materials | Fabrication Techniques

ductile regime grinding brittle materials Ductile 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.

PREDICTIVE MODELING FOR DUCTILE MACHINING OF

i PREDICTIVE MODELING FOR DUCTILE MACHINING OF BRITTLE MATERIALS A Dissertation Presented to The Academic Faculty By Sivaramakrishnan Venkatachalam

SINGLE-POINT DIAMOND MACHINING OF SILICON

ductile-to-brittle transition effects and the ability to produce optical quality surfaces using singlepoint diamond turning techniques [3-5]. In ductile-regime machining of brittle materials, plastic deformation dominates as the

Ductile-Regime Grinding of Brittle Materials ResearchGate

ductile regime grinding brittle materials Ductile machining of brittle materials [58] can be replicated without hydrostatic pressure if the rake angle for cutting tools is negative and by having bonded abrasives for abrasive processes.

Ductile regime grinding of glass and other brittle

1 November 1990 Ductile regime grinding of glass and other brittle materials by the use of ultrastiff machine tools. , Paul Shore, Paul Shore, } "Ductile regime grinding of glass and other brittle materials by the use of ultrastiff machine tools", Proc. SPIE 1333, Advanced Optical Manufacturing and Testing, (1 November 1990); doi:

Materials and Manufacturing Processes Taylor & Francis

ductile regime grinding brittle materials During ductile-mode grinding, surface material is removed through plastic flow, as occurs in metal processing, resulting in a mocrocrack-free and smooth workpiece surface if the surface material removal is conducted under an appropriate cutting depth [20 Bifano, T.G.; Dow, T.A.; Scattergood, R.O. Ductile-regime grinding: a new technology for machining brittle materials.

Ductile-Regime Turning of Brittle Materials by Single

Ductile-Regime Turning of Brittle Materials by Single Point Diamond Ichiro Ogura, Yuichi Okazaki Manufacturing Machinery Division Mechanical Engineering Laboratory, AIST, Tsukuba 305-8564, Japan

Experimental Investigation on Ductile Mode Micro-Milling

ductile regime grinding brittle materials performed ductile regime grinding process on several ceramics, and found that critical un-deformed chip thickness is a function of intrinsic material properties governing plastic deformation and fracture.

Ultraprecision machining of micro-structured functional

ductile regime grinding brittle materials According to the hypothesis of ductile regime machining, all brittle materials undergo a transition from the brittle to the ductile machining region at a critical undeformed chip thickness. Below this threshold, plastic deformation becomes energetically favorable as compared with fracture, and the material deforms instead of fracturing [ 4 , 5 ].

Published in: Journal of Micromechanics and Microengineering · 2011Authors: De Ping Yu · Y S Wong · Geok Soon HongAffiliation: National University of SingaporeAbout: Numerical analysis · Deformation

Ductile-Regime Turning of Brittle Materials by Single

Ductile-Regime Turning of Brittle Materials by Single Point Diamond Ichiro Ogura, Yuichi Okazaki Manufacturing Machinery Division Mechanical Engineering Laboratory, AIST, Tsukuba 305-8564, Japan

Study of the mechanism of ductile-regime grinding of SiCp

postulated a basic hypothesis for ductile-regime grinding: all the brittle materials, regardless of their hardness or brittleness, will undergo a transition from the brittle ma-

Published in: International Journal of Materials Research · 2012Authors: Shutao Huang · Li Zhou · Xiaolin Yu · Lifu Xu

Silicon Wafer Edge Grinding Cranfield Precision SiWeg

ductile regime grinding brittle materials Ductile regime grinding removes material without the brittle fracture normally associated with the grinding of hard materials. It is a process that has been researched and championed by the precision engineering community many years.

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 ductile mode machining of brittle

Nano finish grinding of brittle materials using

ductile regime grinding brittle materials tion takes place in the ductile regime, a defect-free nano-surface is possible and it completely eliminates the polishing process. ELID is one of the processes used Nano finish grinding of brittle materials using ELID 961 grinding wheel therefore remains constant. This cycle is repeated during the grinding process

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.

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.

Specif ic grinding energy as an in-process control

(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

Published in: Precision Engineering-journal of The International Societies for Precision Engineering Authors: Thomas G Bifano · Steven C FawcettAffiliation: Boston University · North Carolina State UniversityAbout: Real-time Control System · Specific energy · Brittleness · Process control · Deformation

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 small feed rate.

Ductile and Brittle Mode Grinding of Fused Silica

Ductile grinding is an ideal method for producing a mirror finished surface on hard and brittle materials to significantly decrease polishing time. However, the fused silica is still difficult to ductile grind because of its high brittleness.

Ductile-regime machining model for diamond turning of

Ductile-regime machining model for diamond turning of brittle materials W. S. Blackley and R. O. Scattergood* A new machining model has been developed for