08/03/2021 Mirror grinding is a grinding that the surface roughness of the workpiece is Ra< 0.01μm, and the light is like a mirror after grinding, so it can be clearly photographed. The flatness of the grinding surface is not greater احصل على السعر
The use of ELID mirror grinding technology for precision machining of steel-bonded cemented carbides makes it easy to obtain low-roughness mirrors. I. The basic principle of ELID grinding technology On-line electrolytic dressing احصل على السعر
The initial rough grinding process uses grit sizes of 60, 120, and 180 to carve out the basic spherical cavity. The mirror is then fine ground with grits of sizes ranging from 220-900. In احصل على السعر
Draw a grid on the mirror surface with a permanent marker (<--picture) Add the usual half teaspoon of grit, sprinkle with water and grind for a couple of minutes, rotating tool and mirror often. Rinse the mirror and inspect the grid lines. If احصل على السعر
OD/ID Grinding & Polishing. Mirror Industries offers precision OD & ID pregrind and finish grind processes to new and damaged cylindrical components to meet your specifications and tolerances. Our in-house reconditioning processes احصل على السعر
2. ELID grinding technology applied to cemented carbide The steel-bonded cemented carbide is subjected to mirror grinding, and the surface roughness of the workpiece is Ra=0.003 احصل على السعر
Rough Grinding. The first milestone is putting a curve into the mirror face. The curve's depth dictates the mirror's focal length. The curve should be spherical. Creating the curve can be done by several methods: The curve is ground into احصل على السعر
Mirror grinding machine construction log I started thinking about building my own mirror grinding machine several years ago. Various components for the mirror grinder. motor cradle overarm Speed reducer Here are some pictures I احصل على السعر
28/10/2021 Overall mirror contains 90% of glass and 10% of silvering material. It is made up of glass, flat or curved. To convert this glass into a mirror, a reflective coating is applied to it. احصل على السعر
2. ELID grinding technology applied to cemented carbide The steel-bonded cemented carbide is subjected to mirror grinding, and the surface roughness of the workpiece is Ra=0.003 μm～0.011 μm. If a finer grinding wheel (above W1) is used, the Ra value will be significantly reduced and a better surface roughness will be obtained.احصل على السعر
Products/Services for Parabolic Mirror Grinding Machines. Grinders and Grinding Machines (989 companies) Grinders and grinding machines use an abrasive that is bonded to a wheel, belt or disc to remove material and improve surface finish. Devices can be pneumatically driven or powered by a combustion engine or electric motor.احصل على السعر
01/01/1990 This process typically takes about 10-15 minutes.The in-process dressing occurs whilst grinding. The conditions of electrolysis of the process (2) and (3) differ,thls is due to the surface condition of the wheel changing according to the electrolysis. 5.2 Electrical behavior whilst electrolytic dressing shows the electrical behavior whilstاحصل على السعر
15/11/2001 The mirror ended up with a very smooth, zone free, nearly spherical figure ready for final figuring. Figure 1: Polishing pads applied to a 9 inch grinding tool. Another local ATM has also tried the polishing pads with abrasive and CeO. His own 17.5" mirror took about nine hours to polish out completely.احصل على السعر
08/01/2021 Zirconia ceramics have been used in the field of smartphone manufacturing, especially for the phone shells. To improve the machining efficiency and simultaneously obtain a mirror-surface quality on the curved surface made by zirconia ceramics, the tangential ultrasonic-assisted grinding (TUAG) was proposed, in which the ultrasonic vibrations of the grinding احصل على السعر
Introduction. The mirror machine came to me as a result of astronomical horse-trading, swapping a large GEM mount and a 8" Newtonian OTA for the machine as it was and a start kit consisting of two 6" blanks and the grit, rouge and pitch to manufacture a mirror. The grinding machine had been built to the design of the mirror-o-matic design ofاحصل على السعر
03/08/2013 Hi folks . Its been ten years since I first read up on grinding mirrors then the idea got placed on the bucket list and shelved. I have been thinking about the idea quite a bit again over the last couple of years, and now my observatory is pretty much complete I think I'm ready to give mirror grinding a go I must say reading some of the Dob build threads on SGL have also احصل على السعر
22/01/2013 A 16" f/5 has a sagitta of 5mm so the glass at the centre of your mirror will only be 20mm max thick at the end of coarse grinding. The next grinding grade or two will take off a bit more thickness. Experience with smaller mirrors always helps which is why it is usually suggested as the best route to take.احصل على السعر
Astronomical (mirror blanks, kits, grinding & polishing material, finished components, supplies) Bent or Slumped Glass ( for instrumentation, fixtures, helicopter light covers, camera windows, telescope mirrors, infrared mirrors, etc.) Chemically Strengthened Glass. Colored Optical Filter Glass (by manufacturers)احصل على السعر
Telescope Making Links Supplies and Components. Where to buy the ATM stuff you will need. Wood. Apply Ply Plywood Local distributor is Northern Jersey Reserve Supply, 2 Midland Ave., Elmwood Park, NJ 07407 Tel (201)796-3000. Birch and Maple Plywood. Columbia Forest Products Europly and JayCore Plywood Local Distributor is North Pacificاحصل على السعر
The method of mirror grinding 1. Balancing and dressing the grinding wheel (1) Balance grinding wheel. After the flange is installed on the grinding wheel, the rough static balance is performed first, and then the two end faces and outer circle are trimmed on the grinding wheel shaft, and finally the precise static balance is performed.احصل على السعر
Draw a grid on the mirror surface with a permanent marker (<--picture) Add the usual half teaspoon of grit, sprinkle with water and grind for a couple of minutes, rotating tool and mirror often. Rinse the mirror and inspect the grid lines. If احصل على السعر
Mirror grinding is a grinding that the surface roughness of the workpiece is Ra< 0.01μm, and the light is like a mirror after grinding, so it can be clearly photographed. The flatness of the grinding surface is not greater than 3μm /1000mm. The surface machining of high precision and high added value parts requires mirror grinding. 2. Grinderاحصل على السعر
01/01/1990 This process typically takes about 10-15 minutes.The in-process dressing occurs whilst grinding. The conditions of electrolysis of the process (2) and (3) differ,thls is due to the surface condition of the wheel changing according to the electrolysis. 5.2 Electrical behavior whilst electrolytic dressing shows the electrical behavior whilstاحصل على السعر
Panasonic HDC-SD60 Telescope mirror grinding machine, Grinding 10" pyrex blank for telescope mirror. Newport Glass Works, LTD. Grinding, Polishing and Figuring . Grinding, Polishing and Figuring . Thin Telescope Mirrors . Abridged from an article appearing are several ways to support the mirror on a grinding and polishing machine .احصل على السعر
08/01/2021 Zirconia ceramics have been used in the field of smartphone manufacturing, especially for the phone shells. To improve the machining efficiency and simultaneously obtain a mirror-surface quality on the curved surface made by zirconia ceramics, the tangential ultrasonic-assisted grinding (TUAG) was proposed, in which the ultrasonic vibrations of the grinding احصل على السعر
22/01/2013 A 16" f/5 has a sagitta of 5mm so the glass at the centre of your mirror will only be 20mm max thick at the end of coarse grinding. The next grinding grade or two will take off a bit more thickness. Experience with احصل على السعر
13/02/2014 Gordon Waite shows you the 3-phase motor and VFD (Variable Frequency Drive) that he is installing on the computer-controlled mirror grinding and polishing ma...احصل على السعر
Telescope Making Links Supplies and Components. Where to buy the ATM stuff you will need. Wood. Apply Ply Plywood Local distributor is Northern Jersey Reserve Supply, 2 Midland Ave., Elmwood Park, NJ 07407 Tel (201)796 احصل على السعر
Amateur Telescope Making Main Page. Russell Porter. Grinding a Mirror. "For it is true that astronomy, from a popular standpoint, is handicapped by the inability of the average workman to own an expensive astronomical telescope. It is احصل على السعر
