Telebrineller Hardness Testing
The first step in performing Telebrineller Hardness Testing is to prepare the surface of the test object. It is important for the surface to be clear of dirt and rust as much as possible. The presence of dirt and rust may affect the results of the test because the indentation made will not be accurate. To clean the surface, use any standard cleaner and microfiber wash cloth. Use a grinder or sander, if necessary, to remove any rust or decarburized metal. Removal of paint and coatings is not necessary to perform the Telebrineller Hardness Test, unless the coating is thick. An even layer of paint will not affect the results of the test.
Once the surface is clean, the testing areas need to be determined. A test object's hardness may not be the same throughout its entirety. One area may be softer than another, and hardness testing will help determine any patterns in hardness throughout the object. It is a good idea to create a grid and take multiple samples evenly across the test object. The number of samples and location of samples to be taken needs to be determined before beginning the testing process. It is also important to avoid taking samples close to the edge of the test object, because the hardness of the edges may not accurately represent the hardness of the entire test object.