Method for testing metal rods by universal testing machine

Universal testing machineThe detection methods for metal rods are as follows:
bending
Bending testProvide important information about the plasticity and toughness of materials. The suitability of the material needs to be tested. Due to the diversity of materials, samples and applications and the continuous development of materials science, special test fixtures are needed.
Determined based on the sample diameter and bending diameter. The bending fixture provides an adjustable support span and replaceable indenter, so that a single fixture can be used for bar tests of multiple sizes.
Stretch
Tensile testing provides a relatively simple, low-wood-forming technology for the development or evaluation of the mechanical properties of metal materials, which provides information on the reaction of metal and alloy materials to mechanical loads. In some cases, manufacturers can test samples that are very close to the final product. In other cases, the raw material must be cut or folded. Both types of tests are practical in material comparison, quality control inspection and alloy development. Many important factors need to be considered in bar sample testing, and the metal tensile universal testing machine is specially designed for this. To meet the fixture requirements for material testing, the company provides a range of various flat-mouth, v-shaped or special fixtures. Most wedge clamps have a front opening design, which provides sample tooling for shoulder and threaded ends. The split sleeve design of shoulder-end sample tooling accelerates the progress of production site testing.
Cut
Many applications and product designs use bars affected by shear stress. These applications range from simple pins and U-hook adapters to safety pins that serve as mechanical safety devices to protect expensive equipment. Therefore, it is necessary to understand the properties of bars under actual shear conditions.
Press and shear test fixtures
Single shear and double shear test fixture.
Turn around
Torsional testMaterial characteristics such as shear modulus, shear strength, shear fracture modulus and plasticity can be tested. To determine the above-mentioned material properties, it is necessary to accurately measure the torque distance and torsion angle on a fixed scale. Although it may seem simple, the torsion test increases the difficulty of testing because the bars are often difficult to clamp, and the torsion angle is not easy to measure. The sample often needs to be processed into a small intermediate area and is diagonal or hexagonal at the clamping end.
To obtain accurate test results, it is crucial to keep the test samples in the fixture centered. During the test, the circular sample is difficult to clamp without sliding.http://www.hssdtest.com/