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VITRA Vitrified-Bond Grinding Wheels

April 19, 2016

VITRA represents the latest generation of vitrified-bonded Hermes precision grinding tools. This newest achievement of the Hermes research laboratories is based on an advanced high-performance, low-fired bond and an optimized microstructure.

VITRA grinding wheels are available in in all aluminum-oxide abrasive types, including sintered aluminium-oxide grain and grit sizes up to 200.

Benefits:

  • Optimized pore structure to increase the intake of coolant and improved chip removal.
  • Significantly low temperature stress during grinding and, thus, shorter grinding times with higher material-removal rates.
  • Universal use with fused and sintered aluminum oxide.

Related Glossary Terms

  • abrasive

    abrasive

    Substance used for grinding, honing, lapping, superfinishing and polishing. Examples include garnet, emery, corundum, silicon carbide, cubic boron nitride and diamond in various grit sizes.

  • aluminum oxide

    aluminum oxide

    Aluminum oxide, also known as corundum, is used in grinding wheels. The chemical formula is Al2O3. Aluminum oxide is the base for ceramics, which are used in cutting tools for high-speed machining with light chip removal. Aluminum oxide is widely used as coating material applied to carbide substrates by chemical vapor deposition. Coated carbide inserts with Al2O3 layers withstand high cutting speeds, as well as abrasive and crater wear.

  • coolant

    coolant

    Fluid that reduces temperature buildup at the tool/workpiece interface during machining. Normally takes the form of a liquid such as soluble or chemical mixtures (semisynthetic, synthetic) but can be pressurized air or other gas. Because of water’s ability to absorb great quantities of heat, it is widely used as a coolant and vehicle for various cutting compounds, with the water-to-compound ratio varying with the machining task. See cutting fluid; semisynthetic cutting fluid; soluble-oil cutting fluid; synthetic cutting fluid.

  • grinding

    grinding

    Machining operation in which material is removed from the workpiece by a powered abrasive wheel, stone, belt, paste, sheet, compound, slurry, etc. Takes various forms: surface grinding (creates flat and/or squared surfaces); cylindrical grinding (for external cylindrical and tapered shapes, fillets, undercuts, etc.); centerless grinding; chamfering; thread and form grinding; tool and cutter grinding; offhand grinding; lapping and polishing (grinding with extremely fine grits to create ultrasmooth surfaces); honing; and disc grinding.

  • microstructure

    microstructure

    Structure of a metal as revealed by microscopic examination of the etched surface of a polished specimen.