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Holemaking

Hole in One

10/01/1996
Author:
Timothy White
Solid-carbide drills made with advanced submicrograin carbide are capable of producing holes that meet tight specifications without secondary operations. This article explains how these tools produce reamer-like finishes while offering extended tool life and shortened cycle times. An accompanying article discusses coatings for solid-carbide drills.
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The Performance Edge

02/01/1997
Author:
Brent Lindsey
This article makes the case that a core drill is the best tool for opening existing holes. Being designed for the operation, the two-flute indexable drill can produce more accurate holes with less tool wear and breakage than alternatives such as boring bars, drills or endmills. The article describes the design of a typical core drill and explains how it is used.
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Stop Drill Breakage

02/01/1998
Author:
Jeff Fox
Several factors influence the effectiveness of a drilling operation. This article looks at a number of them, including coolant delivery, speeds and feeds, and tool selection.
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Perfomax -- when you need stability & versatility in holemaking

With a new re-engineered design, the Seco Perfomax indexable insert drill delivers higher drilling parameters and longer tool life as well as exceptional chip control and evacuation. The drill’s innovative features include new flute designs with special anti-friction surfaces and laser hardened fronts for added strength, stability and accuracy. Watch as it demonstrates its versatility through a series of holemaking operations in this video.

Learn more about the Seco Perfomax indexable insert drill here.

UNISIG tells the deep-hole story at seminar

There were a lot of deep discussions about holemaking at UNISIG’s recent open house and seminar series for magazine editors. UNISIG engineers explained different methods of deep-hole drilling, including gundrilling and BTA drilling, and provided an overview of the machines and related systems the company builds to perform these operations. Hands-on demonstrations in UNISIG’s 62,000-sq.-ft. plant augmented the classroom discussions.