Grinding Of Glass The Mechanics Of The Process

Study on the optical quality and strength of glass edges ...

Study on the optical quality and strength of glass edges after the grinding and polishing process ... explain the grinding process and to relate the location of the fracture origins to a deﬁned area. The edge sur-face (e) describes the area perpendicular to the glass pane surface (p). The chamfer (c) deﬁnes the surface

On the mechanics of the grinding process – Part I ...

Download Citation | On the mechanics of the grinding process – Part I. Stochastic nature of the grinding process | Grinding of metals is a complex material removal operation involving cutting ...

Grinding of Glass: Surface Structure and Fracture Strength ...

An investigation is described of the surface structure and fracture strength for grinding of glass under various conditions. The surface structure of finished glass surfaces was examined by scanning electron microscopy. ... Grinding of Glass: The Mechanics of the Process. J. Eng. Ind (May,1976) Experimental Investigation of Microcutting ...

(PDF) Experimental investigation on grinding ...

As a kind of widely used optical material, optical glass BK7 is machined by first grinding and then polishing in industrial production. However, the polishing process is time-consuming and high-cost. Therefore, it is very meaningful to produce

Dynamic modeling of the turning process of slip-cast fused ...

A DEM methodology for simulating the grinding process of SiC ceramics. ... Subsurface mechanical damage during bound abrasive grinding of fused silica glass. ... Proceedings of the 45th US Rock Mechanics/geomechanics symposium, San Francisco, CA, 26–29 June 2011.

On The Mechanics Of The Grinding Process

An investigation of the material removal process in grinding glass and the effects of the grinding process on the surface structure and fracture strength of the finished product is reported in two papers. this first paper is concerned with the mechanics of material removal for grinding a large number of glasses and some glass-ceramics over a ...

Float Glass Production Process | Glass Academy

Before the development of float glass, larger sheets of plate glass were made by casting a large puddle of glass on an iron surface, and then grinding and polishing both sides for smoothness and clarity – a very expensive process. Float glass. Float glass is sheet glass made by floating molten glass on a bed of molten tin. This method gives ...

Grinding Machining Process : Complete Notes - mech4study

The grinding process has the least material removal rate among other machining processes because of the following reasons- Size effect: As above discussed the machining is done by the abrasive action of grinding wheel that's why a large portion of the abrasive will be embedded inside the wheel and a small portion of abrasive will be allowed ...

Types of Material Removal Process: Multipoint, Abrasive ...

Mechanics of Grinding: In our analysis of the grinding process, all grains are assumed to be identical. ... Diamond is the hardest substance known and is used for very hard work materials such as glass, carbide, and ceramics. Aluminium oxide and silicon carbide are more commonly used for making the grinding wheels.

(PDF) Grinding of glass : optimization of process ...

In the context of glass workpieces manufacturing, this study On figure 5 c and d, it can be observed that working at higher focused on the optimization of the rough grinding process. feed rate and wheel speed will reduce Sr2 values. It would The influence of the cutting conditions on the surface lead to reduce the amount of valleys.

GRINDING MACHINES

grinding machines, bufting machines. and reciprocating surface grinding machines. UTILITY GRINDING MACHINES The utility grinding machine is intended for offhand grinding where the workpiece is supported in the hand and brought to bear against the rotating grinding abrasive wheel. The accuracy of this type of grinding machine depends on the

Twyman effect mechanics in grinding and microgrinding

In brittle grinding conditions, the grinding force and the depth of the compressive layer correlate well with glass mechanical properties describing the fracture process, such as indentation crack size. The maximum surface residual compressive stress decreases, and the depth of the compressive layer increases with increasing abrasive size.

Prediction and verification analysis of grinding force in ...

Surface grinding is an effective method in the manufacturing process of silica glass. Study of grinding mechanism of optical glass in the ductile regime has been relatively mature, but the variation law of grinding force during brittle removal is still unclear. In this paper, a theoretical model of grinding force is presented based on fracture mechanics model to predict the influence of ...

(PDF) Experimental investigation on grinding ...

As a kind of widely used optical material, optical glass BK7 is machined by first grinding and then polishing in industrial production. However, the polishing process is time-consuming and high-cost.

Grinding and Polishing of Glass Surfaces (ART. 205 ...

He first pointed out that the process of grinding with emery is not, as is commonly supposed, a scratching process. The normal effect is the production of isolated detached pits—not scratches. The glass gives way under the emery; at the same time the emery gives way under the glass and suffers abrasion. An image seen through glass which has ...

Efficient and Precise Grinding of Sapphire Glass Based on ...

In this paper, in view of low grinding efficiency and poor ground surface quality of sapphire glass, the coarse diamond grinding wheel dressed by dry impulse electrical discharge was proposed to perform efficient and precise grinding machining of sapphire glass. The dry electrical discharge dressing technology was employed to obtain high grain protrusion and sharp micro-grain cutting edges.

Study On Grinding Force And Subsurface Damage In Single ...

Study On Grinding Force And Subsurface Damage In Single Abrasive Particle Grinding Process By Theoretical Analysis And Simulation: Posted on: Degree:Master Type:Thesis Country:China Candidate:J K Quan Full Text:PDF GTID:23201 Subject:Engineering Mechanics Abstract/Summary:

Edge Grinding Characteristics of Display Glass Substrate

Display glass substrate as a brittle material is very challenging to machine due to its excellent physical, mechanical, electrical, and optical properties such as high hardness, high strength, high wear resistance, good fracture toughness, good chemical stability, and good thermal stability. On the basis of Griffith fracture mechanics, our theoretical analysis indicated that edge grinding of ...

An Introduction to the Optics Manufacturing Process

the grinding process mechanically removes material by breaking off small pieces of glass, the polishing process is both mechanical and chemical. In this stage, the final figure is put into the lens, including its radius of curvature and center thickness. There are a variety of methods and materials available for polishing, the most conventional of

Mechanism of the glass-grinding process | Semantic Scholar

DOI: 10.1007/BF00704681 Corpus ID: 135685593. Mechanism of the glass-grinding process @article{Matushek1984MechanismOT, title={Mechanism of the glass-grinding process ...

Generative Precision Grinding of Optical Glass - ScienceDirect

The deployment of cup wheels to precision-grind optical glass, offers both considerable economic advantages and significant increases in flexibility. In this contribution, the material removal mechanisms of the grinding process will be analysed on the basis of material-specific characteristics.

Glass Manufacturing Process | How is Glass made | Saint ...

The molten glass spreads onto the surface of the metal and produces a high quality, consistently level sheet of glass that is later cut into required sizes. This method gives the glass uniform thickness and a very flat surface. The glass manufactured thus is devoid of waves or distortion. This technique can continuously produce glass 24/7.

The mechanics of grinding - ScienceDirect

Previously published data are examined and are shown to be in agreement with deductions from the model. 1. INTRODUCTION WhiLE the mechanics of the metal cutting process has developed fairly rapidly in recent years, the mechanics of the grinding process has not developed to the same extent, despite considerable effort throughout the world.

(PDF) Edge Grinding Characteristics of Display Glass Substrate

Huerta, M.; Malkin, S. Grinding of glass: The mechanics of the process. ASME T J. Eng. Ind. 1976, 98, 459–467. ... The high-speed edge-grinding process is …

Grinding and Finishing - IIT Bombay

Grinding – Ex. 1-1 • You are grinding a steel, which has a specific grinding energy (u) of 35 W-s/mm3. • The grinding wheel rotates at 3600 rpm, has a diameter (D) of 150 mm, thickness (b) of 25 mm, and (c) 5 grains per mm2. The motor has a power of 2 kW. • The work piece moves (v) at 1.5 m/min. The chip thickness ratio (r) is 10.

On the mechanics of the grinding process – Part I ...

To address such a complex problem, it is necessary to analyze the mechanics of the grinding process using probability statistics, which is the subject of this investigation. Such an analysis is applicable to both form and ﬁnish grinding (FFG), such as surface grinding and stock removal grinding (SRG), such as cut-off operation.

(PDF) Grinding of glass : optimization of process ...

Grinding is the main machining process for producing glass workpieces. However, cutting forces during grinding result in the formation of damaged surfaces which require a polishing operation to ...

Investigations on the micro-interactions of grit-workpiece ...

Meanwhile, these micro-interactions are further affected by ultrasonic vibration in UVSG process. Considering these issues, this paper aims at modeling the cutting force affected by the stochastically distributed grits and ultrasonic vibration to reveal the multi-scale grinding mechanics in …