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Article March 1, 1998 Karl Katbi

Top-Form Geometry: Turning Performance

This article makes the argument that an insert is really a system made up of a combination of factors. The focus of the article is on one of these factors: the top-form geometry, which has evolved from the chipbreaker designs used primarily on turning inserts.

Article March 1, 1998 Tim Malone

Harder, Faster: Turning Performance

The growing use of difficult-to-machine materials has driven the metalcutting industry to high-performance tools. This article reviews the trends that are behind most cutting tool research today, and it looks at the state-of-the art results of that research.

Article February 1, 1998 Michael Weiner

Good News About Eta Phase

The presence of an eta phase between a coating and the substrate is generally considered harmful to coating adhesion. However, this article argues that when the formation of the eta phase is carefully controlled, it can actually enhance adhesion. The conditions that promote the formation of beneficial eta phase are explained.

Article February 1, 1998 Christer Larsson

Optimizing Deep-Hole Drilling

Drilling with a single- or double-tube system might be the most efficient way to drill deep holes in some applications. This article, which describes the tools and the process, says tubular drilling can pay for itself in higher productivity, thriftier manufacturing and tighter tolerances.

Article February 1, 1998 S. Chatterjee

What Makes Diamond Coatings Work?

Researchers studying the performance of diamond coatings have found a number of factors of the coating process that determine the ultimate success of the coating. This article looks at factors such as substrate preparation, stresses in the coating and substrate and the diamond coating's formation patterns.

Article February 1, 1998 John Earnhardt

Hot Properties: Drilling Performance

The benefits of TiN and TiCN coatings are list in high-temperature applications such as the machining of exotic metals. TiAlN coatings, on the other hand, perform better at higher temperatures. This article describes the properties of TiAlN that make it the coating to use with high-temperature work.

Article February 1, 1998 Jeff Fox

Stop Drill Breakage: Drilling Performance

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.

Article December 1, 1997 Nancy Narbut

Grinding With Segments: Heavy Stock Removal Guide

Segmented grinding wheels can help in heavy stock-removal applications with large contact areas. This guide covers where grinding segments fit and what shops should watch.

Article December 1, 1997 William Sluhan

Itching for a Solution: Safety, Standards & Compliance

This article reviews the causes of skin irritation suffered by some shop workers, with special attention paid to skin conditions that result from poorly maintained metalcutting fluids. The article also discusses the factors that can aggravate skin problems and suggests ways that workers can protect themselves from skin irritants.

Article December 1, 1997 Steve Pike

Absolute Zero: General Industry Coverage

When digital calipers that did not have to be zeroed before each measurement were introduced, they represented a significant advancement in electronic gaging. This article explains the technology behind these absolute-reading instruments and how they are used to make typical shop-floor measurements.

Article December 1, 1997 Dennis Myers

Buyer Beware: Supply Chain & Logistics

This article warns against the dangers in recent manufacturing supply trends. According to the author, both outsourcing and integrated-supply programs can have seriously detrimental effects on productivity and innovation. In this article, he explains the reasoning behind his views.

Article October 1, 1997 Dann Rypka

Getting a Grip on Productivity

This article guides the reader through the many decisions that must be made when selecting and installing a hydraulic workholding system. Basic hydraulic system design principles and maintenance also are discussed.

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