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1、规则凹坑表面形貌润滑研究Title: Study on Surface Roughness and Lubrication of Rule Die CavitiesAbstract:The surface roughness and lubrication of rule die cavities plays a crucial role in the efficiency and quality of die-cutting process. This study focuses on investigating the relationship between surface roughn
2、ess, lubrication and die-cutting performance of rule die cavities. The aim of this study is to provide guidance for selecting proper surface finishing and lubrication methods to improve the efficiency and quality of the die-cutting process.Introduction:The rule die is a key component in the die-cutt
3、ing process. It is used to cut, score or perforate the substrate material in a precise shape. The rule die consists of a die board and a series of steel rules that stick out from the die board. The substrate material is placed on the die board and the steel rules are forced through the substrate by
4、a hydraulic press. The die-cutting process is repeated multiple times on a large sheet of substrate material to obtain desired shapes.The surface roughness of rule die cavities has a significant effect on the quality of the die-cutting process. An optimal surface roughness is required to maintain a
5、good balance between holding the substrate and releasing it after the cutting. The surface finish can be improved by using different machining methods, such as EDM or grinding. The roughness is affected by many factors, such as the material being cut, the hardness of the steel rules, the amount of p
6、ressure applied to the die-cutting and the speed of the process.The lubrication of rule die cavities is also important to reduce friction and wear of the steel rules during the cutting process. The proper lubrication can reduce the heat generated during the cutting process, which can also affect the
7、 surface roughness of the cavities. Lubricating methods such as dry lubrication with Teflon coating or wet lubrication with oil or grease can be used.Methodology:The experiments were conducted using a flatbed die-cutting press with a rule die. The materials used were a 350gsm coated paper and a 0.6m
8、m corrugated board. The surface roughness of the rule die cavities was measured using a profilometer. The lubrication methods used were dry and wet. For the dry lubrication, a Teflon coating was applied to the rule die cavities. For the wet lubrication, oil and grease were applied to the rule die ca
9、vities. The experiments were performed at different speeds and pressures to evaluate the effect of lubrication and surface roughness on the die-cutting process.Results and Discussion:The results showed that the surface roughness of the rule die cavities affects the quality of the die-cutting process
10、. A smoother surface finish resulted in a better quality cut. The lubrication methods also affected the cutting performance. The dry lubrication with Teflon coating produced a smooth cut on the paper but resulted in a rough cut on the corrugated board. The wet lubrication with oil and grease produce
11、d a smooth cut on both materials. However, excessive lubrication resulted in deformation of the substrate material.Conclusion:The study showed that the surface roughness and lubrication of rule die cavities affect the quality of the die-cutting process. An optimal surface roughness and lubrication m
12、ethod should be selected according to the material being cut and the desired quality of the cut. The findings of this study can help guide the selection of proper surface finishing and lubrication methods to improve the efficiency and quality of the die-cutting process.In addition to the surface rou
13、ghness and lubrication, the shape and size of the steel rules also play an important role in the die-cutting process. Changes in the shape and size of the steel rules can affect the quality of the cut and the efficiency of the process. Therefore, it is important to carefully design and maintain the
14、steel rules to ensure they are in optimal condition for the die-cutting process.Moreover, the selection of the appropriate lubrication method should also take into account the environmental impact of the lubricant. Some lubricants can cause environmental pollution or generate toxic fumes during the
15、die-cutting process. Therefore, it is important to consider the environmental impact of the lubricant when selecting a lubrication method.Further research is needed to explore the relationship between surface roughness, lubrication, and other factors that may affect the die-cutting process, such as
16、temperature and humidity. In addition, the development of advanced surface finishing and lubrication methods can help to further improve the efficiency and quality of the die-cutting process.In conclusion, the surface roughness and lubrication of rule die cavities are critical factors that affect the quality and efficiency of the die-cutting process. Proper selection of surface finishing and lubrication methods can help to improve the
