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2022
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Yuanhao Stretch Bend Sharing: The Difference between Stretch and Bend in Mechanical Test
Author:
Qingdao Yuanhao
With the continuous development of our science and technology, there are many kinds of materials, and the quality of the original materials is gradually getting better. Therefore, to ensure the quality of materials, it is very important to do a good job of mechanical performance testing, so as to verify whether the product quality is up to standard! Because of this, physical and mechanical testing machines (including testing machines, tensile testing machines, fatigue testing machines, torsion testing machines, impact testing machines, etc.) The industry has a very good development, and different technologies and solutions are applied in various testing machine fields. The tensile testing machine has been greatly improved. This test instrument is used to perform mechanical tests, such as tension, bending, compression, shear, etc. About materials, and this article is mainly to understand the difference between stretching and bending in mechanical tests! Follow togetherYuanhao Pull BendCome and have a look!
1. For the bending test, the sample is simple to operate and its shape is relatively simple. In addition, in the bending test, there is no time deflection in the tensile test, and the line of action of the flexural force of the tensile test specimen cannot accurately pass through the axis of the specimen, resulting in additional bending stress, which has a certain impact on the test results. In addition, the bending test can show the plasticity of the material. It is commonly used to determine the strength of brittle and low plastic materials (such as cast iron, tool steel and cemented carbide) and to show their plasticity. The bending mechanical properties of alloy tool steels during heat treatment affect the test results, and the quenching temperature range can be determined.
2. The surface stress of the tested bending specimen is large, which can flexibly reflect the defects on the surface of the material. Therefore, the performance and quality of some chemical heat treatment and surface heat treatment such as surface quenching and carburizing are often compared.
This is the difference between stretching and bending in the mechanical test introduced by Yuanhao bending above. Hope to help you!
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