One of these is the Poldi-hammer shown in the figure given above. The hammer type portable impact hardness tester is useful for simple and quick determination of Brinell hardness of metals such as steel, Cast Iron, Brass, Aluminium, Copper etc. Due to easy handling and maneuverabmore...
Load is applied to the specimen and a standard test bar in a linear direction through a special Brin ell Ball of 10 mm dia. by a hammer blow. With the impact load being consistent, the extent of indentations obtai ned on the specimen and the test bar depend on their hardness, harmore...
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