Vickers Hardness Testing Machine Diagram

For the vickers hardness test a square base pyramid with a opening angle of 136 is used as the indenter opening angle angle between two opposite surfaces of the pyramid.

Vickers hardness testing machine diagram.

The microhardness test procedure astm e 384 specifies a range of light loads using a diamond indenter to make an indentation. The test measures indentation hardness using a diamond indenter. It s easy to use with advantages over other tests that include less risk of damaging your test piece. The vickers hardness test was developed in 1921 by robert l.

The indenter is the same for both ranges therefore vickers hardness values are continuous over the total range of hardness for metals typically hv100 to hv1000. Hardness testing machine vickers limited engineering group container packaging machinery division vickers armstrongs crayford works telephone. Sandland at vickers ltd as an alternative to the brinell method to measure the hardness of materials. The vickers test is often easier to use than other hardness tests since the required calculations are independent of the size of the indenter and the indenter can be used for all materials irrespective of hardness.

The vickers test has two distinct force ranges micro 10g to 1000g and macro 1kg to 100kg to cover all testing requirements. The plunger pi see arrangement diagram in h. The vickers hardness test method also referred to as a microhardness test method is mostly used for small parts thin sections or case depth work. A modern lcd monitor digital vickers optical hardness tester machine.

Smith and george e.