In order to ensure that the fiberglass fiber yarn is wound continuously and uniformly onto the mandrel, it is essential to maintain a precise relative motion between the guide wire and the mandrel. This means following a specific winding pattern or law. The winding law plays a crucial role in determining the quality of the final product and also influences the directional strength distribution within the structure.
During the winding process, the length of the wear-resistant hammer cylinder is typically determined by the width of the fiber yarn layer. However, since most designs focus primarily on mechanical performance rather than production feasibility, there is often a mismatch between the intended winding angle and other design parameters. As a result, adjustments are usually required to obtain accurate winding parameters that closely match the desired specifications.
There are generally two common approaches for modifying winding parameters: one involves adjusting the dwell angle to achieve the desired fiber sheet width and winding angle, while the other fixes the dwell angle by modifying both the width and the winding angle of the fiber yarn. Both methods aim to improve the overall winding quality and consistency.
The first approach can help bring the central portion of the cylinder closer to the design specifications, but it has significant drawbacks, particularly when the dwell angle is set to zero. In such cases, the normal winding requirements may not be met, which can negatively impact the quality of the winding ends. On the other hand, the second method ensures optimal winding performance and guarantees that the dwell angle meets the required standards without compromising the original design intent. Due to its advantages, the second correction method is more widely used today.
In practice, engineers often combine both strategies depending on the specific application and constraints. It’s important to carefully evaluate the trade-offs between different correction techniques to achieve the best possible balance between structural integrity, production efficiency, and long-term durability of the final product.
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