How to Use Hardness Testers Correctly: Comprehensive Guide to Factors Affecting Measurement Accuracy

Mastering the correct use of hardness testers is essential to ensure precise material hardness measurement. This guide delves into the measurement principles of popular hardness testers such as Rockwell, Brinell, and Vickers, while systematically exploring critical factors that influence accuracy—including indenter shape, applied load, and surface condition. Real-world industrial scenarios illustrate how to minimize errors and enhance testing reliability. Designed for both new technicians and quality engineers seeking to optimize processes, this article offers a thorough understanding from the underlying theory to practical operation, helping you improve efficiency and increase data credibility.