Articles by Ed Tobolski

Quality Test & Inspection: Not So Hard

May 15, 2007
Performing accurate micro/macroindentation hardness-Vickers and Knoop-tests can be a difficult process, even under the best conditions. Preparing the surface properly to allow the optical measurement, and the manual indent measurement process, using a high-powered microscope, is time consuming and costly.
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Back To Basics: Hardness Testing

April 1, 2007
Hardness, as applied to most materials, particularly metals, has been defined in many ways by physicists, metallurgists and engineers. These definitions range from a “conglomeration of properties of a material more or less related to each other” to the commonly accepted idea of “resistance to permanent indentation.” These varied definitions point out the complexity of truly defining hardness so that it satisfies all the criteria associated with the characteristics of hardness.
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A Practical Field Guide for ISO 9001:2008

The purpose of this field guide is to assist organizations, step by step, in implementing a quality management system (QMS) in conformance with ISO 9001:2008, whether from scratch or by transitioning from ISO 9001:2000. It examines each sub-clause of Sections 4–8 of ISO 9001:2008, which contain the requirements, and gives a list of the documentation/documents required, internal audit questions, a summary of management’s responsibilities, and a flowchart of the steps that need to be undertaken to satisfy the requirements.

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