Deflection error
Deflection error occurs in hardness testing when the testing machine frame or the clamping device is elastically deformed. This leads to incorrect readings that must be corrected.
Physical-Chemical Mechanism of Action
Deflection errors occur when the testing machine frame or the clamping device is elastically deformed under the pressure of hardness testing. This deformation affects the measurement and leads to inaccurate results.
Metallurgical Relevance & Risks in Welding
Deflection errors can lead to incorrect hardness values, misjudging the material. This can cause safety issues or malfunctions in the final product.
Workshop Practice & Instructions
To avoid deflection errors, the testing machine frames and clamping devices must be rigid and stable. If deformation occurs, the machine must be corrected, or a correction formula must be applied to adjust the readings.