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Expandable Precision Reamers for High Volume Production

Allied Machine & Engineering Corp offers a complete range of ALVAN expandable precision reamers designed for high volume production wherever high quality, tight tolerances or superior finish is critical. The ALVAN line is available through an exclusive supply agreement with S.C.A.M.I., an Italy-based maker of high quality precision reamers.

"The ALVAN reamers are a good choice where high precision is needed, like those used in gun manufacturing applications such as gun barrels, receivers and site mounts," said a company spokesperson. "The reamers are also widely used in aerospace, where they offer the right geometry for use on composites and high-temperature alloys."

Offered with carbide, cermet, polycrystalline diamond (PCD) and cubic boron nitride (CBN) cutting edges, the reamers come in diameter sizes from 0.228" to 7.898" (5.8 mm to 200.6 mm) with a variety of lead angles.

The ALVAN expandable reamer product line is available in three styles: monobloc, ring and replaceable head. The expandable design is used for adjustment due to wear, enabling users to obtain and maintain tighter tolerances. Customers set their own diameters, helping to ensure a good, tight tolerance on the diameter. The ring style expands up to 4% of the diameter, while the monobloc and replaceable head style expands up to 1% of the diameter. The replaceable head style reamer is available in either expanding or fixed diameter options.

"In addition to producing close tolerances and dimensional accuracy of machined holes, the ring and monobloc styles provide a lower cost per hole with their high penetration rates, making them an ideal choice for finishing holes in a production environment," said the spokesperson. "Compared to traditional reamers, the ring-style reamers are ideal for large diameter holes by preventing the need to replace a large solid reamer, reducing waste. The monobloc styles are suited to smaller diameter holes. They are more precise than traditional reamers, expand to accommodate for wear and can be repaired to new condition."

The replaceable head option is designed for a quick set-up, because users do not have to remove the tool from the machine and can set up directly on the machine tool. This option is a good choice for use with the fixed head reamer, in which the diameter comes preset and ready for use. With this option, users get the benefits of a high precision tool without the need to expend time on set-up.

A full application engineering support team is available to help customers choose among available options based on the application, the diameter of the hole and the production environment.

For more information contact:

Allied Machine & Engineering Corp.

120 Deeds Drive

Dover, OH 44622


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