In practical engineering applications, many materials and components often bear repeated compressive loads, such as springs in automotive parts and blade tenons in aircraft engines. The compression fatigue heating test machine can accurately simulate the compression fatigue load and the resulting heating situation of these components in actual operation, making the test results closer to actual working conditions and providing reliable basis for product design and optimization.

This testing machine can not only measure the mechanical properties of materials under unidirectional compression, but also conduct in-depth research on the fatigue performance and heating characteristics of materials during repeated compression processes. By analyzing the stress-strain curve and temperature time curve of the specimen during the fatigue process, key performance indicators such as fatigue limit, fatigue life, and heating rate of the material can be understood, providing information for material selection and application.

Measurement steps of compression fatigue heating testing machine:

1. Preparation before the experiment

-Equipment inspection: Ensure that all parts of the testing machine are connected properly, without any looseness, damage, or other issues. Check the power and grounding conditions, and confirm that the equipment is powered on normally. Inspect the electrical and mechanical components of the equipment, including load, speed, displacement, and measurement systems, to ensure their proper functioning and accurate calibration.

-Sample preparation: According to the experimental requirements, prepare samples that meet the specified size and shape. The surface of the samples should be smooth and defect free, and the quantity should meet the experimental requirements and be numbered and marked. For some special materials, it may be necessary to pre treat the sample under specific environmental conditions such as temperature and humidity.

-Parameter setting: Based on the purpose of the experiment and the characteristics of the sample, set relevant parameters on the control software or operation panel of the testing machine, such as loading rate, loading amplitude, frequency, number of tests, load, etc.

2. Sample installation: Accurately install the sample to be tested in the testing fixture of the testing machine, ensuring that the position of the sample is correct. The loading surface should be in close contact with the loading head of the testing machine, and it should be ensured that the sample will not slide or tilt during the loading process. For specimens that require axial force, ensure that the axis of the specimen coincides with the loading axis of the testing machine.

3. Apply load: Start the fatigue testing machine and apply compressive load according to the set parameters. According to the experimental requirements, continuous loading or specific loading modes such as sine wave, triangular wave, etc. can be selected for loading. During the loading process, closely monitor the operating status of the testing machine and the response of the specimen.

4. Data monitoring and recording: By connecting sensors or using the measuring device provided by the testing machine, continuously monitor the load, displacement, strain, temperature and other data during the testing process, and ensure the accuracy and completeness of the recorded data. It is possible to observe the trend of data changes in real time in order to detect abnormal situations in a timely manner.

5. Test completion and data processing: When the set test completion conditions are reached, such as reaching a certain number of cycles, sample damage or failure, the test is terminated. Organize and analyze the data recorded during the experimental process, calculate the fatigue life, fatigue strength, temperature rise and other performance indicators of the material, and draw corresponding curves or charts, such as stress-strain curves, temperature time curves, etc.