(3) The speed of innovation in new grades and new products is greatly accelerated
As a tool, tools are the most dynamic process factor in a manufacturing system and are in the process of continuous innovation. In the modern cutting technology stage, the development of the tool has two major characteristics: First, the speed of innovation is accelerating. The biennial Beijing International Machine Tool Show (CIMT) has become a "new product launch" for tool manufacturers around the world, new material grades, new coated products, new tool (sheet) structures, new tool holders. And clamping technology, new processing methods, and so on. The second is to establish innovative ideas for system optimization. On the basis of system optimization, the newly developed coated hard alloy grades can often increase the cutting efficiency by more than 20% compared with the original grades, and some can even reach more than 50%. A new tool product can provide a new processing effect, or significantly improve the processing efficiency, such as the popular high-feed milling cutter in recent years, the feed per tooth reaches 3.5~4.0mm/z, which is the general milling cutter. 10 times; another example, the amount of feed for a shaved turning insert can be doubled.
(4) The connotation of modern cutting technology
After the cutting process entered a new stage of modern cutting technology, many new related technologies appeared, which expanded the connotation of cutting technology. For example, high-speed cutting technology was first applied to rotating tools, mainly milling. In the early days, the spindle speed exceeded 10000r/min as the threshold for high-speed cutting. Around this goal, the technology related to the machining center was developed including high-speed spindle and fast. Feed, high plus (minus) speed technology and CNC systems for high-speed cutting; developed tool-related technologies including HSK tool holders, 7:24 two-sided contact holders, safety technology for high-speed rotary tools and tool balancing technology. In order to use high-speed machining of solid carbide universal tools, it is necessary to improve the accuracy and rigidity of tool clamping. New hydraulic chucks and tooling adjustment technologies such as hydraulic chucks, hot chucks and force shrink chucks have been developed. In addition, in order to improve tool utilization and reduce tool management costs, tools such as tool management software and cutting database have been developed to improve the overall level of cutting processing with modern information technology.
3. How to apply modern cutting technology to improve processing efficiency
At present, the development situation of the mechanical cutting industry is very good. So, how to apply modern cutting technology to improve the processing efficiency of enterprises? You can start from the following aspects:
(1) Improve tool material properties and develop coating technology
An important symbol of the rapid development of cutting technology in recent years is the continuous improvement of the performance of tool materials and the rapid advancement of coating technology, especially the large-scale cemented carbide materials and their turning and milling inserts. The newly developed carbide inserts of various tool companies are springing up, and their varieties cover all fields of cutting and processing. Usually the introduction of a new grade can increase cutting efficiency by 20% to 30%, and some even up to 100%. Therefore, a comprehensive review of the old materials used by the company for a long time, the elimination of some of the old brands, the use of the corresponding new materials, new grades, especially the use of coated grades instead of uncoated grades, can improve the processing efficiency can receive immediate results.
(2) Development of new tool structures
Rapid development of new tool structures plays an important role in improving machining efficiency. For example, Sandvik Coromant's new CoroDrill880 carbide indexable shallow hole drill can improve the feed rate or cutting speed compared with the original shallow hole drill due to the significant improvement in the structure of the tool (sheet). Nearly double, the processing efficiency can be increased by about 70%, and better processing accuracy and surface quality can be obtained. For example, when Harbin Steam Turbine Works produced the first 600,000 kW supercritical steam turbine unit in China, it encountered the problem of large-diameter deep hole machining. If it was processed with traditional hole machining tools, each hole should be 6.7 hours, and the machining task could not be completed. . Later, the plant used a composite drill from Kennametal, the processing time of each hole was only 0.5h, the processing time was reduced by about 93%, and the processing task of about 200 deep holes was not completed in the original 40d (day), 5d. It’s all done. It can be seen that enterprises should actively use abundant advanced tool resources to improve processing efficiency or solve the processing problems encountered in production, and use this as an opportunity to continuously improve the application level of cutting technology and tools.
(3) Development and adoption of new tools
In recent years, the tool industry has developed new tools for certain machinery industries, which have the characteristics of high efficiency or innovative technology, and play an important role in promoting the progress of processing technology in the industry. For example, the insert milling (drill) knife, multi-function milling cutter, large feed milling cutter, horn milling cutter and other tools developed for the mold industry have played an important role in improving mold processing efficiency and innovating mold processing technology. Therefore, enterprises should keep abreast of and collect the latest developments of the industry's cutting tools, and use them for us to maintain the advanced cutting processing level and leading processing efficiency.
In addition, cutting technology has some common results, such as indexable tools instead of welding knives, squeezing blades and spiral-blade inserts with horns, and other integral indexable inserts that can replace general-purpose high-speed steel knives. Alloy drills, end mills and other tools, these tools have a general effect on the processing efficiency of a large number of large-scale car, milling and drilling processes, and have long been proved by production practice. However, the unavoidable fact is that there are still quite a few enterprises that have not fully adopted this part of technology for various reasons, and have been using tools that have long since fallen behind, thus restricting the development of enterprises for a long time. Companies should plan to use common advanced cutting technology and tools to quickly change the appearance of the tool.
4. Conclusion
China is a country with relatively backward cutting technology. Existing technologies and products have not been able to meet the demand for advanced tools in important industrial sectors of manufacturing. Therefore, accelerating the development of cutting technology and mastering the core technology of modern cutting is not only of great practical significance but also increasingly urgent for China's historical task of building and manufacturing a strong country and completing new industrialization, and realizing the goal of revitalizing the equipment manufacturing industry.
Previous page
Roll Up Door Servo Motor,Automatic Roller Shutter Door Opener,Roller Shutter Door Servo System,Glass Sliding Door Motor
Shenzhen Hongfa Automatic Door Co., Ltd. , https://www.hffastdoor.com