EBVR Unit Tes Brinell, Vickers dan Rockwell Hardness

BRINELL, VICKERS & ROCKWELL HARDNESS TESTING UNIT - EBVR

SISTEM INOVATIF

The Brinell, Vickers and Rockwell Hardness Testing Unit, "EBVR", allows to measure and to determine Brinell, Vickers and Rockwell hardness of metallic materials or test pieces.

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The Brinell, Vickers and Rockwell Hardness Testing Unit, "EBVR", consists of a hardness testing machine that determines the three main types of hardness (Brinell, Vickers and Rockwell). It can be adapted to determine hardness of ferrous materials (steel, casting pieces, etc.), nonferrous materials (aluminum and copper alloys, etc.), test pieces and alloys.

The most common method used to calculate the hardness of a metal is measuring the indentation strength with the aid of a tool of specific geometry. It consists on measuring the imprint generated when exerting a preset load on the test piece for a specific time.

A penetrating ball of specific diameter is used in the Brinell hardness test to press the surface of the test piece with a specific force. The EBVR unit employs balls of 2.5 mm and 5 mm.

The Vickers method allows to measure the hardness of practically all metallic materials, regardless their state and thickness. It employs a square base pyramid-shaped indenter made of diamond. Such indenter is applied perpendicularly to the surface whose hardness is going to be measured.

The Rockwell method generates a small size imprint during the test. It employs small quenched steel balls or a cone made of diamond for the indentation. The measuring process with the indenter made of diamond is used for hard materials, such as quenched materials.

LATIHAN DAN PRAKTEK PEDOMAN

LATIHAN PRAKTIS YANG DIANDAL TERMASUK DALAM PANDUAN

  1. Familiarization with the use of instrumentation to perform hardness tests.
  2. Study and familiarization with the Brinell, Vickers and Rockwell hardness testing unit.
  3. Brinell hardness measurement on different materials.
  4. Vickers hardness measurement on different materials.
  5. Rockwell hardness measurement on different materials.
  6. Observation of the behaviour of diverse materials under different loads.
  7. Knowledge of the types of standard test pieces for these types of tests.
  8. Knowledge of the types of standard indenters for these types of tests.

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