The factors affecting the accuracy of stretch bending processing are numerous and mainly include the following aspects:

1. Precision of processing equipment: The precision of stretch bending processing equipment directly affects the processing accuracy. The precision of components such as the mechanical structure, control system, and sensors of the equipment will have an impact on the final processing effect.

2. Material performance: The mechanical properties of the material, such as yield strength, tensile strength, elongation, etc., will affect the accuracy of stretch bending processing. The deformation behavior of different materials during stretch bending processing is also different, so it is necessary to choose appropriate processing parameters for different materials.

3. Selection of processing parameters: The selection of parameters such as tension force, deformation amount, and speed in stretch bending processing has an important influence on the processing accuracy. These parameters need to be optimized based on specific processing requirements and material characteristics.

4. Design and manufacturing of molds: The design and manufacturing accuracy of molds also has an important impact on the accuracy of stretch bending processing. Factors such as the shape, size, and surface quality of the mold will affect the deformation behavior of the material and the processing accuracy.

5. Environmental factors: Temperature, humidity, and other environmental factors can also affect the accuracy of stretch bending processing. For example, changes in temperature may lead to changes in the mechanical properties of the material, thereby affecting the processing accuracy.

6. Technical level of operators: The technical level and experience of operators can also affect the accuracy of stretch bending processing. Skilled operators can better grasp the use method of equipment and the selection of processing parameters, thereby improving the processing accuracy.

7. Monitoring and adjustment during processing: During the stretch bending processing, it is necessary to monitor the processing status in real-time and make adjustments based on the actual situation. For example, when it is found that the processing accuracy has deviation, it is necessary to adjust the processing parameters or the position of the mold in time to ensure the processing accuracy.

8. Pre-processing preparations: Before performing stretch bending processing, adequate preparations need to be made, including pre-treatment of materials, cleaning and maintenance of molds, debugging of equipment, etc. The quality of these preparations will also affect the processing accuracy.

9. Post-processing treatment: After the stretch bending processing is completed, some subsequent treatment work still needs to be done, such as stress relief, surface treatment, etc. The quality of these treatments will also affect the final processing accuracy.

In summary, there are many factors that affect the accuracy of stretch bending processing, and it is necessary to comprehensively consider various factors and take corresponding measures to improve the processing accuracy.