Resources

The author discusses the disadvantages of using a finishing endmill for roughing applications. He also presents a quick, systematic, step-by-step series of calculations that allows machinists to optimize metalcutting when applying coarse-pitch, cobalt-HSS roughing endmills.

Article May 1, 2000 Kip Hanson

From Maudsley to CNC: The Evolution of Thread Cutting

A look at the different types of inserts used for single-point threading and how to figure feed rates for cutting threads on a CNC lathe. Also offers programming tips and recommendations for reducing tool wear.

Article May 1, 2000 Kimberly R. Pontius

Abrasive Personality: Drilling Performance

High-silicon aluminum--aluminum that consists of at least 11.8 percent silicon--has qualities such as lightness and strength that appeal to automakers. The abrasives nature of the material, however, makes it difficult to machine. The author offers suggestions for milling, tapping, drilling, turning and grinding high-silicon aluminum.

Article April 1, 2000

Getting to the Bottom of Chatter

Tool chatter is one of the biggest obstacles to effective machining that job nshops face. The author discusses the sources of chatter and offers nsuggestions for minimizing it.

Article April 1, 2000 Dennis Esford

Added Dimensions: 5-Axis Machining

A rotary table allows a 3-axis vertical machining center to machine in the n4th and 5th axes. The author explains the different types of rotary tables nthat are available and discusses the advantages and disadvantages of each.

Article April 1, 2000 Mark Richardson

High Expectations: Drilling Performance

People in the aerospace industry expect a lot from reamers. The author, an nengineer who works for a manufacturer of aerospace components, discusses nstrategies for job shops interested in developing a precision reaming nprogram.

Article April 1, 2000 Derek Phillips

Don’t Toss that Indexable Tool

Ninety-nine percent of indexable tools that break can be repaired, according to companies that repair tools. And, they say, a broken indexable tool can nbe repaired so it performs as well as or better than the original.

Article April 1, 2000 Derek Phillips

Company Saves Big with Custom Indexable Tool

Switching from a brazed-tip trepanning tool to an indexable-insert tool nreduced downtime for a manufacturer of cast iron cylinder heads by 45 nminutes. And, incredibly, the price-per-piece dropped so much that the ncompany could save $690,000 annually.

Article April 1, 2000

Expanding Possibilities and Self-Improvement: Turning Performance

Round-up of five recently introduced indexable tools: stub drill, universal nmilling cutter, center-cutting endmill, dovetail cutter and insert clamp.n

Article March 1, 2000 Dennis Esford

Software Solutions: Safety, Standards & Compliance

Tool management software is designed to help users of cutting tools get more control of their toolcribs. The article describes the types of tool management software available, the savings possible by utilizing software and includes comments from shop owners who've installed these systems.

Article March 1, 2000 Don Graham

Dry Out: Drilling Performance

As the government publishes ever-stricter regulations for metalworking fluids, more shops try dry machining. The author examines the cost benefits of machining dry and looks at the various types of tool materials designed to enhance dry-machining applications.

Article March 1, 2000 William Shaffer

Getting a Better Edge: Design & Engineering

The author, an expert on cutting tool edge preparation, explains the importance of applying the proper edge hone to a tool. He also discusses a brush-type honing machine designed to apply a variable edge--a capability not available with other machines on the market.

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