How to Choose a Fatigue Testing Machine

How to Choose a Fatigue Testing Machine

Fatigue tester, as the name implies, is a testing machine used to assess fatigue.

We currently utilize the following methods as the force application techniques for fatigue testing.

1. Position control involves setting a displacement to conduct fatigue tests on the test components. These parts are typically tested until the total number of cycles is reached, followed by an external inspection to determine if there are any significant deterioration issues. This generally falls under basic fatigue testing. Mechanical fatigue is primarily achieved through a mechanical eccentric mechanism to add vertical or horizontal displacement. The frequency is typically around 0.1-50 Hz. Control is also quite simple, as a PLC touch screen can effectively add the required functions. 2. Force control is the process of setting a force value to conduct fatigue tests. Currently, this type of fatigue testing mainly uses electric linear actuators and hydraulic linear actuators as the force application devices. Force control can better perform precise fatigue tests on components.

Control is primarily achieved through microcomputer control methods, offering more comprehensive and robust functionality compared to PLCs. 3. Hybrid fatigue testing involves more than just chaotic, unstructured fatigue; it is designed to handle multi-force or multi-displacement, or mixed force and displacement tests. It is mainly used for fatigue requirements in comprehensive force testing. It can perform synchronous testing at one or several points, as well as separate testing at one or several points. The testing method can be customized according to the customer's specific sample characteristics. 4. When selecting a fatigue testing machine, it is crucial to first clarify the relationship between force, displacement, and frequency. After confirming these parameters, the testing method must also be defined. Purposeful communication will facilitate a quicker and more comprehensive understanding of the machine's specifications, configuration, and pricing. A fatigue testing machine is a non-standard customized product within the category of conventional testing machines. Although components are modular, customization requires thorough communication.