\
menu
grinding mirror machine pdf

Popular

abrasive machining processes - IIT Kanpur

Grinding is a combination of rubbing, ploughing and cutting (actual chip formation) A certain level of grit penetration into workpiece is required before chip formation can start Magnitude of critical grit depth of cut required to initiate cutting becomes less with the increase of grinding velocity..

Know More

(PDF) A comparison of grinding and electric discharge ,

The mechanical fabrication processes include grinding and electrical discharge machining Combining the chemical polishing to achieve a mirror finish, showed that the use of grinding lead to the steps being washed out when exposed to the chemicals for an extended period of time..

Know More

Build your own telescope part 1: The mirror – Thomas ,

Rough grinding This step is about making one side of the glass concave It will give your mirror its overall focal ratio If you make the centre deep, you will end up with a fast telescope (eg F/D = 4) well suited for deep sky observations On the opposite, a shallow mirror (eg F/D = 8) will be performing very well on planets and the moon..

Know More

M-o-M Free Preview - Mirror-o-matic

Mirror-o-Matic was designed to be a very low cost astronomical mirror grinding, polishing and figuring machine Its attributes are: 1 It can be built for somewhere between $200 and $400 2 It is constructed of hardware store items and it needs no machined parts 3 It is constructed primarily of 3/4 inch plywood and has few close toleranc 4..

Know More

Concrete Polishing: Basic Steps to Polishing Concrete Floors

Machines equipped with diamond-segmented abrasives (akin to sandpaper) are used to grind down concrete surfaces to the desired degree of shine and smoothness As when sanding wood, you gradually progress from coarser-grit to finer-grit abrasiv (In this case, grit is the particle size of the diamond) The result is a glossy, mirror-like finish..

Know More

Build your own telescope part 1: The mirror – Thomas ,

Rough grinding This step is about making one side of the glass concave It will give your mirror its overall focal ratio If you make the centre deep, you will end up with a fast telescope (eg F/D = 4) well suited for deep sky observations On the opposite, a shallow mirror (eg F/D = 8) will be performing very well on planets and the moon..

Know More

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 15 m/min The chip thickness ratio (r) is 10..

Know More

Stellafane ATM Main Page

Much is also unchanged - mirror grinding techniques are very similar to those written up by Porter and Ingalls in the 20´s and 30´s Many amateur astronomers still choose to fabricate their own instruments, for the pride of accomplishment, the gaining of knowledge and the insurance of quality..

Know More

POLISHING OF MOULD STEEL

with mirror finish the preparation process must involve several grinding and diamond polishing steps and these have to be performed in a clean workplace The use of proper working tools facilitates the process a lot High surface finish reduces the risk of local corrosion and fracture or cracking due to temporary over load-ing or pure fatigue..

Know More

POLISHING OF MOULD STEEL

with mirror finish the preparation process must involve several grinding and diamond polishing steps and these have to be performed in a clean workplace The use of proper working tools facilitates the process a lot High surface finish reduces the risk of local corrosion and fracture or cracking due to temporary over load-ing or pure fatigue..

Know More

CN103495916A - Numerical control mirror grinding machine ,

Provided is a numerical control mirror grinding machine for grinding non-spherical optical mirror fac A grinding head rotating shaft is arranged on a grinding head seat, a grinding head is arranged on the rotating shaft, the grinding head is driven by a grinding head rotating motor to rotate, the grinding head seat is arranged on a polar radius translation bench, the grinding head seat is ...

Know More

Stellafane ATM Main Page

Much is also unchanged - mirror grinding techniques are very similar to those written up by Porter and Ingalls in the 20´s and 30´s Many amateur astronomers still choose to fabricate their own instruments, for the pride of accomplishment, the gaining of knowledge and the insurance of quality..

Know More

grinding mirror machine pdf - Products

grinding mirror machine pdf 250tph river stone crushing line in Chile 200tph granite crushing line in Cameroon 250tph limestone crushing line in Kenya 250tph granite crushing line in South Africa MCC 120tph granite crushing line in Zimbabwe 400tph crushing plant in Guinea Chat Online..

Know More

mexico grinding mirror machine pdf

mexico grinding mirror machine pdf tut44 Making A Mirror Grinding Tool,After fine grinding is complete the mirror must be polished It is during polishing that you “figure” the mirror by using a different polishing stroke to change the mirror’s spherical polished shape into a parabolic polished shape See a related tutorial nearby,As a leading global manufacturer of crushing equipment ...

Know More

Lecture 8 Metal Cutting

flow, either by manual grinding using shaped grinding tools, or by electro-grinding (b) The internal surface of the cylinders of a car engine are turned on a lathe The surface is then made smooth by grinding, followed by honing and lapping to get an extremely good, mirror-like finish (c) Sand-paper is used to smooth a rough cut piece of wood 2..

Know More

UNIT 2 GRINDING Grinding - IGNOU

which the wheel is used, size and power of grinding machine using the wheel 17 Grinding Face Thickness Wheel Ring Figure 21 : Different Types of Grinding Wheels 232 Tappered Face Straight Wheels This is Type 4 in Figure 21 It is also a straight wheel but its free is slightly tapered to ...

Know More

Lecture 8 Metal Cutting

flow, either by manual grinding using shaped grinding tools, or by electro-grinding (b) The internal surface of the cylinders of a car engine are turned on a lathe The surface is then made smooth by grinding, followed by honing and lapping to get an extremely good, mirror-like finish (c) Sand-paper is used to smooth a rough cut piece of wood 2..

Know More

ΑBRASIVE TOOLS | abrasivgr - Cutting & grinding discs

Diamond grinding wheel for Ceramics - porcelain - marble - granite - stones, but also for glass For Dry or Wet grinding using angle grinder machine Made with plastic fiber glass backing so no vibrations caused Made with 100 pieces of flaps mixed diamond cloth & SiC In 115mm discs with flat profile..

Know More

(PDF) Grinding of aspherical SiC mirrors

Fig 1 Grinding methods using a cup wheel = COS-1 b (~/a2- (B)2 - a) (2) Here, r is the radius of out~er or inner part of the grinding tool, and B the width of the mirror The directrix of the ...

Know More

Mirror Grinding Machine (Complete) - India - YouTube

Aug 28, 2015· Its a near Mirror o Matic mirror grinding machine,It runs at 50 RPM fixed, The eccentric has dual speed, 17 RPM & 41 RPMI built it in 6 months,Sum...

Know More

ELID grinding of SiC ultra lightweight mirror

Therefore, we developed the ultra lightweight mirror by ELID (ELectrolytic In-process Dressing) grinding method and ultra-precision grinding machine ELID grinding method is the new grinding technology which one of authors invented, produces the quality of the high surface efficiently, and is effective in processing of a very hard material ...

Know More

Joy of Mirror Making: Introduction - BBAstroDesigns

Rough Grinding Unless the mirror comes pre-generated, the initial curve will have to be ground into the mirror A ring tool of half the diameter of the mirror used on top of the mirror's flat face with the coarsest grit will rapidly grind a spherical curve into the mirror Grinding a 6 inch [15cm] mirror to F/28 using a ring tool Mirror ...

Know More

5 DIMENSIONS, TOLERANCES AND SURFACE

• Grinding ±0008mm • Lapping ±0005mm Surface finish, roughness Casting • Die Casting Good 1-2µm • Investment Good 15-3 • Sand Casting Poor 12-25 Metal forming • Cold rolling Good 1-3 • Hot rolling Poor 12-25 Machining • Boring Good 05-6 • Drilling Medium 15-6 • Milling Good 1-6 • Turning Good 05-6..

Know More

A Comparison of Honing and Lapping - Metal Cutting Corporation

Sep 14, 2017· With a horizontal honing machine, the workpiece may be held in a self-aligning fixture while the machine controls the speed and length of the stroke The hone is hydraulically or mechanically expanded until the desired hole diameter is achieved In addition, a cutting fluid must be used..

Know More

Mirror Roller|Super Finish Roller|Matt Finish Roller ,

Send Enquiry We have high precision German Super Finishing Machine to achieve high gloss mirror finish subsequent to the grinding operation We use special abrasive tools to reduce peak to valley height and impart High Gloss Mirror Finish to the Roll resulting in a surface finish of 0005 Micron Ra Value on the Roll..

Know More

5 DIMENSIONS, TOLERANCES AND SURFACE

• Grinding ±0008mm • Lapping ±0005mm Surface finish, roughness Casting • Die Casting Good 1-2µm • Investment Good 15-3 • Sand Casting Poor 12-25 Metal forming • Cold rolling Good 1-3 • Hot rolling Poor 12-25 Machining • Boring Good 05-6 • Drilling Medium 15-6 • Milling Good 1-6 • Turning Good 05-6..

Know More

Grinding a telescope mirror

Grinding a telescope mirror Products As a leading global manufacturer of crushing, grinding and mining equipments, we offer advanced, reasonable solutions for any size-reduction requirements including, Grinding a telescope mirror, quarry, aggregate, and different kinds of minerals..

Know More

Concrete Polishing: Basic Steps to Polishing Concrete Floors

Machines equipped with diamond-segmented abrasives (akin to sandpaper) are used to grind down concrete surfaces to the desired degree of shine and smoothness As when sanding wood, you gradually progress from coarser-grit to finer-grit abrasiv (In this case, grit is the particle size of the diamond) The result is a glossy, mirror-like finish..

Know More

A high quality surface finish grinding process to produce ,

Aug 23, 2019· A high quality surface finish grinding process to produce total reflection mirror for x-ray fluorescence analysis Hitoshi Ohmori1, Shinjiro Umezu1,2, Yunji Kim1, Yoshihiro Uehara1, Hiroshi Kasuga1, Teruko Kato1, Nobuhide Itoh1,3, Syuhei Kurokawa4, Takayuki Kusumi5, Yugo Sugawara6 and Shinsuke Kunimura6 1Materials Fabrication Laboratory, RIKEN, Saitama 351-0198, Japan..

Know More

Mirror Grinding Machine

My Mirror Grinding Machine For a long time I've wanted to build a machine for grinding telescope mirrors Dennis Rech's M-o-M designs finally inspired me to just get up and do it Over the years, I'd been collecting motors, gear boxes, pulleys, etc Most of them came from industrial junk yards..

Know More