Glossary of Fused Quartz Terms and Definitions

A milled bevel accomplished through machining or in the overall design profile. We utilize CNC milling centers and CADCAM Water Jet milling centers.

An angle can be a bevel (such as a chamfer, a safety feature added so material cannot cut the user) or a bevel can be machined according to a drawing – removing burrs or sharp angles.

Beveled edge on the left compared to a chamfer edge on the right.

Also known as Pyrex. For industrial use.

(Computer automated drawing/machining) Water Milling /
Water Jetting – computer controlled drawings used for machining.

A break edge – safety edge to remove sharpness.

A Chamfer on the right as compared to a standard Bevel Angle on the left.

Computer Numerical Control. Parameters used in computer programming, to produce a precise machined result. 

How the edge finish is described. Finish can be accomplished through CNC, Water Jet, Blanchard, OD (outer diameter).

Finish completed with 240 grit diamond. Milling marks will be evident.

Completed with Aluminum Oxide Grit for a smoother finish.

Controlling the level across the piece. Completed in wavelengths and TIR depending on the surface finish. Generally, we try to hold to .001 flatness every 5-6 inches.

Observation blue borosilicate base tinted glass used to look directly at flame. Known as filter glass used to get a clear view of flame.

Semiconductor grade, with 99.995 purity.

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Range in diameter from 0.25″ to 24″

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Between CNC Water Jet and Cylindrical Grinding.

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Size based on finish, in all finishes

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Polished discs.

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Exists in 60 different grades. A man made material that is chemically made, whereas fused quartz is natural. Popular use is in the optics field.

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As the term says, glass for industrial applications and R&D Research and Development of materials processed.

White quartz used as a heat block, will not allow heat or light transmission.

A machining application we (MGS Machined Glass Specialists) can match.

Mined silica sand material controlled for semiconductor applications

Creating an opaque surface on a piece of material. Typically accomplished with a heavy grind, grit blast

Standard grade of quartz known for purity.

Made to withstand high pressure and high temperature. Other term for window, to see inside an enclosure to what is being manufactured. Often used in the petroleum industry.

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A milling application.

240 grit diamond – used on Fine Blanchard.

Milling application that as the name implies, looks like a step.

All the different types of finishes done to user specifications. Such as Ground and Polished, Blanchard Ground, Fine Lapped Ground, Fine Blanchard, Fine Lapped (No Milling Marks), Sand Blasted.

Calling out flatness of polished surfaces. Our standard is within 2-4 waves per inch.