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An Introduction to the Optics Manufacturing Process

shape. Polishing is the final fine grinding stage where the surface and shape of the optic is finished to specification. The optic is then centered and bevels are put on the edges. Typically the optic is then coated and it is ready to be used in a system. Diamond turning, injection molding, and precision glass molding are also discussed.

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US6113464A - Method for mirror surface grinding and ...

An apparatus and a method for mirror surface grinding which enables high quality, stable ELID grinding; and a grinding wheel for electrolytic dressing. The apparatus comprises a grinding wheel 3 having a contact surface 2 for contacting a workpiece 1, an electrode 4 facing the surface 2, nozzles 5 for supplying conductive fluid between the grinding wheel 3 and the electrode 4, …

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Homemade Telpe Making - Google Search

A table saw covered with layers of newspaper about 1/2 inch thick (to support the mirror and tool) was used as the grinding stand. A "wet" began by spraying the disks with water and smearing a small amount of grit over the tool (or mirror) with my fingers. The mirror (or tool) was then carefully placed on top of the tool (or mirror) and ...

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Glass Beveling, Glass Edging | Edge Finishing | One Day Glass

A beveled glass mirror can highlight both the mirror and the frame, making it a better option than a plain glass mirror. The glass used in a beveled glass mirror is also thicker, which adds to the mirror's weight. Compared to plain glass, beveled glass …

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What are the mirror grinding processing methods ...

1. What is mirror grinding The surface roughness of the workpiece after grinding is Ra0.01µm, it is as mirror-like and can be imaged clearly, so it is called mirror grinding. The flatness of the grinding plane is not more than 3µm/1000mm. The surface processing of high-precision, high-value-added parts requires mirror grinding. 2.

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Moulding Knives, Templates, Molding Catalog by Mirror ...

GRINDER ARTICLES ABOUT US RESOURCES Mirror Reflections is a molding knife design and manufacturing company. We produce some of the most beautiful quality molding knives, profile templates, and CAD (computer-aided design) drawings in the woodworking industry.

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What is the Lapping and Define the Process?

Define Lapping: The term "lapping" is used to describe a number of various surface finishing operations where loose abrasive powders are used as the grinding agent at normally low speeds. It is a process reserved for products that demand very tight tolerances of flatness, parallelism, thickness or finish.

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Stainless Steel Mirror Sheets in STANCH Polished Stainless ...

No.8 Super Mirror Stainless Steel. Product Name : Super Mirror (No.8) Product Introduction. Super Mirror is high gloss, polished finish, having a high degree of reflectiveness which can be done by 2B and BA finishes, also called No.8 or non-directional finish. It is produced by finer abrasives, and finishing with extremely fine buffing compounds.

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Process Mechanism in Shape Adaptive Grinding (SAG), for ...

Process Mechanism in Shape Adaptive Grinding (SAG), for Application to Aspheric X-Ray Mirror Molding Dies Yoshiharu Namba, Anthony Beaucamp Richard Freeman (Zeeko LTD) Shape Adaptive Grinding (SAG) is a novel process for freeform machining of difficult materials such as ceramics and hard metals. Despite low stiffness

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Lens & Mirror Making Best lenses and mirrors are both made ...

Best lenses and mirrors are both made by grinding the surface Start with a mirror or lens blank For mirrors only surface needs to be good Typical mirror want pyrex (eg BK7) Then need a tool blank – poorer glass & softer glass Place mirror on top tool Now add grinding compound (grit) between tool & mirror Grinding – moving the mirror over ...

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US6113464A - Method for mirror surface grinding and ...

An apparatus and a method for mirror surface grinding which enables high quality, stable ELID grinding; and a grinding wheel for electrolytic dressing.

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tut44 Making A Mirror Grinding Tool - Asterism

Typically, the primary mirror is made of glass. Pyrex is commonly used for the primary mirror because of its thermal stability, but for small mirrors, plate glass will work fine too. Telpe mirrors are relatively thick. The concave shaped face is made by repeatedly rubbing the primary glass blank over another blank called the "tool".

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A Study on the Mirror Grinding for Mold of a Small ...

An aspheric glass lens is fabricated by the high temperature and pressure molding using a tungsten carbide molding core, so precision grinding technology for …

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FORTECH - Home

1.CNC / line cutting, mirror discharge, high-speed milling machine, forming grinding processing. 2.Precision plastic mold design, manufacturing, plastic injection molding. 3.Excellent design capabilities and continuous research and development technology, the pursuit of high-quality mold and high-precision.

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Casting a Large, Light-Weight Telpe Mirror From ...

Photo #2 shows the mirror at the end of rough grinding. I was aiming for an f/4.5 mirror, so the required depth of the curve is 0.175 inch. Once the required depth is reached, the rough grinding is complete. Amazingly, the rough grinding has removed over a pound of glass. The mirror now weighs in at only only 8 pounds 15 ounces.

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Plastic Injection Mold for Optical Parts | Young Optics

Plastic Injection, Molding Glass Mold, Jig: ψ250 x 800 mm <0.8 μm <0.5 μm: Jig Grinding: Plastic Injection, Molding Glass Mold, Jig: 300 x 350 mm <0.8 μm <0.5 μm: Surface Grinder: Plastic Injection, Molding Glass Mold, Jig: 600 x 400 mm <1.0 μm <1.0 μm: Wire cut EDM: Plastic Injection, Molding Glass Mold, Jig: 250 x 250 mm <2.0 μm <2.0 ...

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How I Make Light-Weight Hexagon or Honeycomb Telpe ...

Rough grinding is complete for the 12.5 inch honeycomb-back telpe mirror blank. The rough grinding went pretty quickly and painlessly this time. I only have maybe 12 hours of actual work in the mirror so far. It's hard to believe, but the rough grinding has removed over a pound of glass. The mirror now weighs in at only only 8 pounds 15 ounces.

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Aerospace — Composite Machining Guide - Kennametal

compression molding, filament winding, pultrusion, etc. Unidirectional tape Fabric weave Tape-layered composite with each tape having unidirectional fibers in different directions. Spalling Breakout/ delamination Uncut fibers Uncut resin Spalling. Composite Machining Guide A38

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Precision Mold Supplier in China

CED mold parts, Mirror discharge machining parts Accuracy can be achieved within ±0.005mm Surface roughness Ra0.3 Completed by forming grinding and discharge. More >> DIN Standard Mold Parts. DIN standard mold parts Applied to all kinds of mold base, mold holders Tolerance within 0.005mm and high wear resistance, made by molding grinding.

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How I make Waffle-Back Telpe Mirror Blanks

The proper tool for edging a mirror blank is a thick grinding wheel. Well, thick grinding wheels are very expensive, and somewhat hard to find. So I decided to make my own grinding wheel. While in Harbor Freight I noticed they sell thin masonry grinding disks in packs of 10 at a very inexpensive price. Looking at them, I got the idea of ...

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Mirror Grinding Machine | Products & Suppliers ...

Description: Orbital polishing machine type LPC 500 mirror has been designed, like the other two smaller versions, for straight and bent tube mirror polishing up to maximum diameter 203 mm.; this unit is equipped with liquid polishing paste dispenser and with inverter device for polishing . Applications / Materials Abraded: Ceramics / Glass; Driver Technology: Electric Motor / Vibrator

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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.

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Astro-Tel - Mirror grinding machine

MIRROR GRINDING MACHINE. I made my first mirror grinding and polishing machine over thirty years ago. It used the working principle of the machine illustrated at "A" Fig.3, Page 163, "Amateur Telpe Making" Book 1. A bowl which rotated was fitted to the spindle.

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EDM Process of Injection Mold Making ... - Inno molding

EDM is known as electrical Discharge Machining, plays a very important roles in the mold making technology, which mainly used to achieve some deep and narrow profile that a normal CNC machining could not work for. At Inno molding, we are well-equipped with 10 sets of normal EDM and 5 sets of mirror EDM that exported from Switzerland and Japan.

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HONGKONG SANTO PRECISION PLASTIC HARDWARE MOULD I

ABOUT US. Since 1998, Hong Kong SANTO Precision Plastic Hardware Mould Industrial Co.,limited is an integrated manufacturing company, specializing in development, design, manufacture of plastic injection mould, Die-Casting Die, moulding products, as well as finished products assembly which applicantion for appliances, kitchenware, transportation …

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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 …

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Mold Polishing Techniques Introduce and SPI Mold Finishes

Mold polishing generally uses oil stone, sandpaper, polishing paste, etc. to grind the cavity surface of the mold, so that the working surface of the mold can be as bright as a mirror. It is called mold polishing. Mold polishing has two purposes; one is to increase the finish of the mold, so that the surface of the product from the mold is ...

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How is the mirror polishing finish done on stainless steel ...

The mirror finish is achieved by mechanically treating the surface with a series of gradually refined abrasive materials. At this stage, the deep scratches must be removed because any surface defects on the final product are very noticeable. After this, the final process involves polishing the surface for 5-10 minutes to form a mirror-like ...

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QL METAL & MOULD CO.,LTD

QL METAL & MOLD CO.,LTD is committed to providing fast and comprehensive parts and prototype processing services for overseas markets. Which mainly includes various mold non-standard parts, hardware parts, CNC machining prototypes, 3D , rapid injection molding, etc. We use all kinds of precision processing equipment, such as grinders ...

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Amazon: wall mirror

NeuType Full Length Mirror Standing Hanging or Leaning Against Wall, Large Rectangle Bedroom Mirror Floor Mirror Dressing Mirror Wall-Mounted Mirror, Aluminum Alloy Thin Frame, Black, 65"x22". 4.6 out of 5 stars. 3,817. $115.99. $115. . 99. Get it as soon as Thu, Nov 4. FREE Shipping by Amazon.