【正文】 英文資料 Highspeed milling Highspeed machining is an advanced manufacturing technology, different from the traditional processing methods. The spindle speed, cutting feed rate, cutting a small amount of units within the time of removal of material has increased three to six times. With high efficiency, high precision and high quality surface as the basic characteristics of the automobile industry, aerospace, mold manufacturing and instrumentation industry, such as access to a wide range of applications, has made significant economic benefits, is the contemporary importance of advanced manufacturing technology. For a long time, people die on the processing has been using a grinding or milling EDM (EDM) processing, grinding, polishing methods. Although the high hardness of the EDM machine parts, but the lower the productivity of its application is limited. With the development of highspeed processing technology, used to replace highspeed cutting, grinding and polishing process to die processing has bee possible. To shorten the processing cycle, processing and reliable quality assurance, lower processing costs. 1 One of the advantages of highspeed machining Highspeed machining as a dieefficient manufacturing, highquality, low power consumption in an advanced manufacturing technology. In conventional machining in a series of problems has plagued by highspeed machining of the application have been resolved. Increase productivity Highspeed cutting of the spindle speed, feed rate pared withtraditional machining, in the nature of the leap, the metal removal rate increased 30 percent to 40 percent, cutting force reduced by 30 percent, the cutting tool life increased by 70% . Hardened parts can be processed, a fixture in many parts to be pleted rough, semifinishing and fine, and all other processes, the plex can reach parts of the surface quality requirements, thus increasing the processing productivity and petitiveness of products in the market. Improve processing accuracy and surface quality Highspeed machines generally have high rigidity and precision, and other characteristics, processing, cutting the depth of small, fast and feed, cutting force low, the workpiece to reduce heat distortion, and high precision machining, surface roughness small. Milling will be no highspeed processing and milling marks the surface so that the parts greatly enhance the quality of the surface. Processing Aluminum when up , pieces of steel processing at up to ~ . Cutting reduce the heat Because the main axis milling machine highspeed rotation, cutting a shallow cutting, and feed very quickly, and the blade length of the workpiece contacts and contact time is very short, a decrease of blades and parts of the heat conduction. Highspeed cutting by dry milling or oil cooked up absolute (mist) lubrication system, to avoid the traditional processing tool in contact with the workpiece and a lot of shortings to ensure that the tool is not high temperature under the conditions of work, extended tool life. This is conducive to processing thinwalled parts Highspeed cutting of small cutting force, a higher degree of stability, Machinable with highquality employees pared to the pany may be very good, but other than the pany39。s employees may Suanbu Le outstanding work performance. For our China practice, we use the models to determine the method of staff training needs are simple and effective. This study models can be an external object, it can also be a bination of internal and external. We must first clear strategy for the development of enterprises. Through the internal and external business environment and organizational resources, such as analysis, the future development of a clear business goals and operational priorities. According to the business development strategy can be pared to find the business models, through a parative analysis of the finalization of business models. In determining business models, a, is the understanding of its development strategy, or its market share and market growth rate, or the staff of the situation, and so on, according to the panies to determine the actual situation. As enterprises in different period of development, its focus is different, which means that enterprises need to invest the manpower and financial resources the focus is different. So in a certain period of time, enterprises should accurately selected their business models pared with the departments and posts, so more practical significance, because the business models are not always good, but to pare some aspects did not have much practical significance, Furthermore This can more fully concentrate on the business use of limited resources. Identify business models, and then take the enterprise of the corresponding departments and staff with the business models for parison, the two can be found in the performance gap, a parative analysis to find reasons, in accordance with this business reality, the final identification of training needs. The cost of training is needed, if not through an effective way to determine whether panies need to train and the training of the way, but blind to training, such training is difficult to achieve the desired results. A parison only difference between this model is simple and practical training. Can be part of some alternative technology, such as EDM, grinding high intensity and high hardness processing Highspeed cutting a major feature of highspeed cutting machine has the hardness of HRC60 parts. With the use of coated carbide cutter mold processing, directly to the installation of a hardened tool steel processing forming, effectively avoid the installation of several parts of the fixture error and improve the parts of the geometric location accuracy. In the mold of traditional processing, heat treat