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Mitchell Kirby

Mitchell Kirby is vice president of manufacturing for Riten Industries Inc., Washington Court House, Ohio. For more information about the company’s standard and custom workholders, call (800) 338-0027 or visit www.riten.com.

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Article July 15, 2015 Mitchell Kirby

Growth of customized workholding: General Industry Coverage

Metalworking is becoming increasingly specialized, with manufacturers of lathes and grinders offering a variety of capacities, bed lengths and other options. This promises the user the ability to create custom machining solutions to "meet any production need." While this is true to a point, standard options have their limits, and truly customized machines cost more and have extended delivery times.

Article February 15, 2015 Mitchell Kirby

Bad parts? Check the tailstock

Every lathe and grinder operator has, at one time or another, struggled with workpieces that are out of round, tapered or have poor finish. The "quick fix" is typically replacing centers. The more involved fix requires replacing spindle bearings that appear to have failed prematurely.

Article August 15, 2014 Mitchell Kirby

Saving face: Get a grip on machined parts with face drivers

When turning long parts, the traditional workholding technique is to chuck one end of the part and support the other end with a live or dead center. This is generally effective but has two drawbacks.

Article February 15, 2014 Mitchell Kirby

Why good live centers go bad

Regardless of a live center's brand, its quality is acceptable or the center manufacturer wouldn't be in business. In addition, most center designers have kept pace with today's high-horsepower machines, aggressive machining parameters and high-pressure coolant applications to avoid limiting the accuracy and service life of a live center.

Mitchell Kirby

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