A Brief Introduction to Charpy Impact Testing


Charpy Impact Tester is a laboratory testing machine that reveals the amount of energy absorbed by a material during fracture. This absorbed energy is an assessment of the available strength or toughness of material. Eventually, it is designed to determine whether the material is brittle or ductile in nature. Universities, automotive and aerospace companies, research laboratories and steel manufacturers are typical users for impact testing systems.

An overview of Charpy Impact testing
Salient Features
A Charpy Impact Tester is a high-performance machine that has a pendulum with a defined length and mass. It is ideal for testing metals to Charpy and Izod standards of 150 Joules capacity. The key features of the impact tester are as follows:
·         Attachments
Accessories for Charpy Impact Testing are easily fit into the machine unit. Each test requires a specific fixture, hammers and specimen adapters.
·         Results
According to the test, the fall angle of 150 degrees can produce optimum test parameters. The touchscreen control unit examines and displays the test results.
·         Safe operating system
After completion of the test, the pendulum returns to its starting position automatically. The motor-driven hammer also auto-returns after the test. It enhances productivity and ensures safe processes. This allows the starting angle to be changed according to the test, which enables optimum test parameters.
·         Quick processing
Electromagnetic brakes, clutches, cabin doors, and other control mechanisms respond quickly for better operation. The automatic testing mode of the device enables fast and continuous testing.
·         Machinery
The smart and stable frame of the machine is erected of solid steel. The user-friendly mechanism has a digital control unit to display results and a safe manual mode for the operator.


How does Charpy Impact Tester work?
During the Charpy impact testing, the pendulum is dropped from a specific height to put pressure on a notched sample. It creates a massive impact on the sample, which is further analysed in quantitative and qualitative form. Firstly, the quantitative results give a definite insight into the amount of force that a material can absorb at the point of fracture. Secondly, the qualitative conclusions of the test provide valuable information about the ductility of the materials being tested.
Charpy impact testing is conducted in various industries, including forging, rubber, and plastic industry. It is a high-level test to determine the ductility and malleability of a material. However, the notch used in the test must be of suitable specimens as it has a significant influence on the test results. The results of impact testing help ensure whether the material is best for an industrial application.

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