Sirsalliyan Small Air Compressor

Speed Cut

How To Improve The Efficiency Of Lowering The Processing Cost Cutting

Now the production of both efficiency and cost savings, improve cutting efficiency and reduce the processing cost is the long-term pursuit of metal-cutting technology development goals. How can I do that? In general, to improve cutting efficiency and reduce processing costs in three ways: increased cutting speed, feed rate increase and improve the depth of cut. ?

1. High-speed cutting?

Cutting speed increase reflects Machinery The overall level of manufacturing technology advances, the machinery manufacturing industry has brought enormous economic benefits.

From the development of cutting history, often cutting through the development and improvement Tools Materials to significantly enhance the cutting speed so as to improve cutting efficiency and reduce production costs. Since the 80s of the 20th century, Europe and the United States through a large number of test tool manufacturing research on the cutting mechanism of a new breakthrough in the understanding that when the cutting speed by more than a certain critical value (due to material differences), the tool wear is not Taylor curve according to the law increased dramatically, but at a later interval increased with cutting speed reductions, and increased again after going through a trough. Although this phenomenon has not been a consistent theoretical explanation, but does not preclude the basis of this law range near the bottom in this high-speed machining technology. At present, the industrialized countries of the aviation, Car , Power machinery, tooling, bearings, machine tools, etc. According to this theory the development of high-speed cutting, so that these industries significantly improve product quality, significantly reduce processing costs, access to market competitive advantage. ?

Theoretical analysis and proven, high-speed cutting is a systematic project. From a technical level, the high-speed cutting involving high-speed spindle units, feed and high speed increase (decrease) the speed of the drive system, high-speed CNC control system, high rigidity of the machine tool structure, the rapid processing and transmission of data, dynamic balance control, superhard cutting tool materials and coating technology fields; from Management The level, the high-speed cutting process involving high-speed concept, new management methods. As part of the system, only the co-ordination between the various links in order to play its due benefits. If the die surface, if other aspects are in line with the requirements of high speed machining, but the CAM data processing instead of using only linear interpolation or circular interpolation spline curve interpolation to simulate the surface of the curve, the machine feed system is always in the process of constant acceleration and deceleration, they can not achieve the desired feed rate, thus limiting the cutting efficiency and lower production costs. Similarly, if used in high speed milling in the general structure of three-edge Legislative Mills , Because of its usually been the center of a tooth structure, balancing performance deficiencies, the same can not achieve the desired speed, processing efficiency can be expected.

Walter is the world leader in one of the metal cutting tools, in and around the world, especially the German car manufacturing industry Cooperation Accumulated a great deal of successful experience. Walter (Wuxi) Co., Ltd. China began early in the practice of high-speed machining. See the rapid development of high-speed cutting is in China, as domestic enterprises system tools partners, Walter (Wuxi) is very willing to share with the Chinese manufacturing high-speed cutting of technological achievements. ?

In high speed machining, the tool should first full attention to security issues. Milling is the main process high-speed cutting applications, milling (including face milling cutter, cutter and die cutter) is the major high-speed cutting tools. When this type of tool parts in high-speed rotation to be under a lot of centrifugal force, due to its role far beyond the role of cutting force (the centrifugal force is too large can lead to broken knives), therefore become the main tool load. Germany in the 20th century, since the early 90's high-speed milling of security technology research, and the machine Manufacturers Association's support, formed by the university research institutions, cutting tool manufacturers, research institutes and tool users to participate in working groups engaged in high-speed milling of security technology. After nearly a decade of work, made a series of initial results, the development of the German national standard was adopted as European standards, and promote the worldwide development of high speed machining technology. In the process, Walter, together with the working group on high-speed milling of strength calculation was studied. Specifically for high-speed milling by the finite element method, were used to develop the cutter body, knife, blade, clamping Screw The calculation module, can also simulate the blade in the knife in the slide, in tightening the screw head and the work load of the deformation. Of calculations show that, when the speed reached a certain critical speed, the screw to achieve the critical stress and tensile deformation occurs. The critical velocity is reached before the first bend, screws, the actual length of variable length, clamping force reduced, resulting in displacement of blade production.

To ensure the safety of cutting, the provisions of the German standard tool product manufacturers should be at least more than the maximum speed of 60% of the nominal case can be shifted, at least the nominal maximum speed of more than manufacturers of 100% can occur under disintegration or break the whole tool.

In practice, Walter in 2000, a comprehensive sample, the list of almost all the reaming, boring and milling tools in different diameters of the maximum speed, ensuring the origin of Use blades and accessories under the conditions of origin milling is very safe.

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