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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 August 3, 2021)

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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-brittle transition was endemic to...

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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.

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Ductile-Regime Grinding: A New Technology for

1991-5-1  Because of recent advances in precision engineering that allow controlled grinding infeed rates as small as several nanometers per grinding wheel revolution, it is possible to grind brittle materials so that the predominant material-removal mechanism is plastic-flow and not fracture. This process is known as ductile-regime grinding.

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Ductile-regime grinding of brittle materials - 科研通

2021-7-26  T.G. Bifano, Ductile-regime grinding of brittle materials, Thesis, Department of Mechanical and Aerospace Engineering North Carolina State University, Rayleigh, 1988. 该求助完结已超 24 小时,文件已从服务器自动删除,无法下载。. 科研通是完全免费的文献互助平台,具备全网最快的应助速

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Science and art of ductile grinding of brittle solids ...

2021-2-1  Grinding involves translational grit-workpiece contacts on the microscale or nanoscale. Interactions between multiple contacts result in chip formation and consequent material removal. In ductile grinding of a brittle workpiece, chips are formed in crack-free plasticity mode.

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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

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Ductile or Partial Ductile Mode Machining of Brittle Materials

Grinding and lapping operations using inexpensive machine tools could produce ductile streaks on surfaces of these brittle materials under good conditions. Manufacture of

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Ultraprecision Ductile-Regime Cutting of Brittle Materials ...

Soda-lime Limestone is a typical brittle material, which is difficult to realize ductile-regime machining by using conventional cutting technology due to the extremely small critical depth of cut. In this work, the micro-deformation characteristics of this kind of materials were analyzed by micro indentation. Ultrasonic vibration assisted diamond cutting was performed in order to investigate the ...

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Ductile streaks in precision grinding of hard and brittle ...

2019-4-9  Abstract. Ductile streaks produced during diamond grinding of hard and brittle materials have aided the subsequent process of polishing. Two novel techniques were used to study the formation of ductile mode streaks during diamond grinding (primary process) of germanium, silicon, and Limestone. In the first technique, aspheric

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Ductile-regime grinding of brittle materials - 科研通

2021-7-26  T.G. Bifano, Ductile-regime grinding of brittle materials, Thesis, Department of Mechanical and Aerospace Engineering North Carolina State University, Rayleigh, 1988. 该求助完结已超 24 小时,文件已从服务器自动删除,无法下载。. 科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高 ...

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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.

Get Price

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. ... The criteria for realizing ductile regime grinding ...

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Ductile Regime Grinding of Hard and Brittle Materials Based ...

As a means to realize ductile regime grinding of an optical Limestone, a truncation method in which diamond cutting edges are truncated to be aligned on the grinding wheel surface is focused on in order to optimize the truncation conditions. The results are summarized as follows.1. Three-dimensional shape of diamond grain cutting edges was measured using a scanning laser microscope and it is found ...

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Ultraprecision Ductile-Regime Cutting of Brittle Materials ...

Soda-lime Limestone is a typical brittle material, which is difficult to realize ductile-regime machining by using conventional cutting technology due to the extremely small critical depth of cut. In this work, the micro-deformation characteristics of this kind of materials were analyzed by micro indentation. Ultrasonic vibration assisted diamond cutting was performed in order to investigate the ...

Get Price

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.

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T. G. Bifan o Department of Aerospace and Mechanical ...

2013-1-19  to grind brittle materials so that the predominant material-removal mechanism is plastic-flow and not fracture. 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

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

Later in 1976, Huerta and Malkin were the first to show reproducible results of diamond grinding of Limestone in a ductile mode, which considerably improved the surface quality and machining accuracy. Later, precision grinding of brittle materials in a ductile mode had been extended to others such as silicon and ceramics.

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Precision Grinding of Hard and Brittle Materials

2013-5-27  Precision Grinding of Hard and Brittle Materials Two cup-shapedidentical size diamond-grindingwheels with metallic (D20/30 MIC­ L50M-l/4) and resinoid (SD240-RIOOB69-6mm) bonding were used. The profile of the grinding edge is circular in this case, but not restricted to this shape, thus forming a toroid.

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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.

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Ultraprecision Ductile-Regime Cutting of Brittle Materials ...

Soda-lime Limestone is a typical brittle material, which is difficult to realize ductile-regime machining by using conventional cutting technology due to the extremely small critical depth of cut. In this work, the micro-deformation characteristics of this kind of materials were analyzed by micro indentation. Ultrasonic vibration assisted diamond cutting was performed in order to investigate the ...

Get Price

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.

Get Price

Ductile streaks in precision grinding of hard and brittle ...

2019-4-9  Abstract. Ductile streaks produced during diamond grinding of hard and brittle materials have aided the subsequent process of polishing. Two novel techniques were used to study the formation of ductile mode streaks during diamond grinding (primary process) of germanium, silicon, and Limestone. In the first technique, aspheric

Get Price

Comparison of Materials for Use in the Precision

The ductile grinding of optical materials is a rapidly evolving process. Ductile regime grinding is the technology of grinding brittle materials at material removal rates and depth of cuts that allow for predominantly ductile removal of material as opposed to brittle fracture of the material. It has been

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Nano finish grinding of brittle materials using ...

2019-4-9  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

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A Study of Mechanics in Brittle–Ductile Cutting Mode ...

2018-1-29  Brittle–ductile cutting mode transition is an important phenomenon in the ultra-precision machining of brittle materials [1–4]. Almost all the brittle materials could be machined in the ductile mode when the undeformed chip thickness (t undeformed) decreases to be sufficiently small, typically at submicron level [5–7].

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Ductile and brittle transition behavior of titanium alloys ...

2018-3-2  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 ...

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Brittle material characters and property - Our Essay Samples

2018-5-9  Thus, the predominant material-removal mechanism is plastic-flow rather than fracture. This process is known as ductile-regime grinding. When brittle materials are ground through a process of plastic deformation, a working surface similar to those achieved in

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Ductile-Regime Grinding Grinding (Abrasive Cutting ...

2015-7-8  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.

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Precision Grinding of Hard and Brittle Materials

2013-5-27  Precision Grinding of Hard and Brittle Materials Two cup-shapedidentical size diamond-grindingwheels with metallic (D20/30 MIC­ L50M-l/4) and resinoid (SD240-RIOOB69-6mm) bonding were used. The profile of the grinding edge is circular in this case,

Get Price