Do you ever wonder what is required to execute a Leeb test?
The Leeb method is categorized with other hardness testing techniques, which determine the resistance of a material to permanent damage. It’s one of the methods certified for hardness testing by the ISO 16859and ASTM A956 standards. The Leeb hardness test is a unique measurement for metallic materials’ hardness. While the other hardness tests cause an indentation by the impact of an indenter, the Leeb test method uses a rebound off a sample with sufficient weight and toughness. Let’s learn more about the Leeb hardness test method and its requirements.
I. Leeb Hardness Test
As briefly mentioned above, the Leeb hardness test method works very efficiently and accurately with samples that are rigid and have sufficient weight. Therefore, samples like sheet aluminum, small die-cast parts, and lightweight parts are typically not appropriate for the Leeb test. The Leeb hardness test is measured by the ratio of the impact velocity against the rebound. Moreover, the Leeb method can only be achieved with stationary samples that don’t easily move. The lesser the sample rigidity, the more likely it is to get an inaccurate result. Typically, the impact velocity ranges between 1.4 and 3.0 m/s. The Leeb hardness test can also be carried out in two different ways: using the bench hardness tester, a regular (stationary) type, and the portable (mobile) type. Advanced Leeb testers are more mobile which allows easy movement and innovative features.
