In order to ensure the smooth incision of laser cutting stainless steel brushed UV table tennis racket rubber, it is necessary to start from multiple links and control the cutting process in all directions. First of all, the selection and debugging of laser equipment is the key foundation. Different types of laser equipment have different beam quality and energy distribution. Only by selecting laser equipment with good beam mode and high energy concentration can the premise of precise cutting be provided. Before cutting, it is also necessary to finely debug the power, frequency, pulse width and other parameters of the laser equipment to make the laser energy output stable and meet the requirements of rubber cutting. Appropriate laser parameters can make the laser beam melt or vaporize stainless steel brushed wire and UV coating in an instant, and accurately control the heat affected area at the same time to avoid uneven problems such as burrs and depressions in the incision due to excessive or insufficient energy.
The focusing system plays an important role in ensuring the smoothness of the incision. After the laser beam is focused by the focusing mirror, the spot size and energy density will change. A high-quality focusing system can focus the laser beam into a very small spot, concentrate the energy in the cutting area, and achieve precise cutting. During the cutting process, the focus position must be accurately adjusted according to the thickness and material characteristics of the uv table tennis racket rubber. If the focus position is inaccurate, the spot becomes larger and the energy is dispersed, which will not only reduce the cutting efficiency, but also cause uneven edges of the cut. Only by accurately positioning the focus point on the cutting surface of the rubber can the laser beam act on the material in the best state and cut a smooth cut.
The cutting path planning has a significant impact on the flatness of the cut. Before cutting, use professional computer-aided design software to optimize the cutting graphics of the table tennis racket rubber. Reasonably plan the cutting path to avoid unnecessary repeated cutting and sharp turns, and reduce the frequent start and stop and sudden changes in direction of the laser beam during the cutting process. Because frequent start and stop and sharp turns will cause the laser energy to be unstable, leaving marks at the cut and affecting the flatness. Using a smooth cutting path, such as cutting the internal complex graphics first and then cutting the external contour, can make the laser beam act on the uv table tennis racket rubber smoothly, ensure the continuity and stability of the cutting process, and thus obtain a smooth cut.
The stability of the workbench should not be ignored either. When cutting the table tennis racket rubber, it needs to be placed on a stable workbench. If the workbench shakes or vibrates, the rubber will be displaced during the cutting process, resulting in deviation or unevenness of the cut. Therefore, it is very important to choose a sturdy workbench with shock absorption function. The surface of the workbench must also be flat and smooth to avoid squeezing or pulling the rubber due to uneven surface. At the same time, the UV table tennis racket rubber is firmly fixed on the workbench by vacuum adsorption or clamps to prevent it from moving during the cutting process, ensuring that the laser beam can accurately cut along the predetermined path and ensure the flatness of the cut.
The use of cutting auxiliary gas is also an important factor in ensuring the flatness of the cut. During the laser cutting process, auxiliary gas, such as oxygen, nitrogen, etc., is sprayed into the cutting area. The auxiliary gas can blow away the slag and vaporized substances generated during the cutting process to prevent these substances from adhering to the cut surface and affecting the flatness. Different auxiliary gases and gas pressures have different effects on the cutting effect. For example, when oxygen is used as an auxiliary gas, it can react with stainless steel to release additional heat, which helps to increase the cutting speed, but it may also cause the incision to oxidize and discolor; while nitrogen can protect the incision, prevent oxidation, and keep the incision smooth. According to the characteristics of stainless steel wire drawing and UV coating, selecting the appropriate auxiliary gas type and accurately controlling the gas pressure and flow rate can effectively clean the cutting area and make the incision smoother.
The post-cutting treatment process is also helpful to further improve the flatness of the incision. After the cutting is completed, the incision of the uv table tennis racket rubber is slightly trimmed and polished. Use fine sandpaper or polishing tools to gently polish along the direction of the incision to remove the remaining tiny burrs and uneven parts. For some more demanding situations, chemical treatment or plasma treatment can also be used to micro-repair the surface of the incision to make the incision smoother. At the same time, during the treatment process, pay attention to avoid damage to other parts of the rubber to ensure that the overall quality and performance of the rubber are not affected, and finally obtain an ideal flat incision.
