Optical comparators are measurement systems that offer extremely accurate and repeatable measurement data. They use video images, geometric dimensioning and tolerance (GD&T),light, lenses, mirrors, and cameras to examine the tolerances of parts, assemblies, and components. Optical comparators are a valuable tool used by quality control inspection teams to determine the effectiveness of production methods and…
How to Compare Products Downhole Laboratory testing such as the ASTM G65 wear test can give a good indication of an alloy’s performance. However, it will never accurately recreate the punishment that a hardband experiences downhole. Not only abrasive wear, but impact wear plays a big part, not to mention extreme temperatures, the effect of…
FREQUENTLY ASKED QUESTIONS 1. What standards cover the process of Cold Root Rolling? A. Both NS-1 and DS-1 have standards in place that cover the process of Cold Root Rolling to one extent or the other. Many of the major Rotary Shouldered Connection OEMs also have internal standards that cover some aspect of this process.…