机械外文翻译-高速铣削--外文翻译

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英文资料

High-speed milling

High-speed 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 high-speed processing technology, used to replace high-speed cutting, grinding

and polishing process to die processing has become possible. To shorten the processing cycle,

processing and reliable quality assurance, lower processing costs.

1 One of the advantages of high-speed machining

High-speed machining as a die-efficient manufacturing, high-quality, low power

consumption in an advanced manufacturing technology. In conventional machining in a series of

problems has plagued by high-speed machining of the application have been resolved.

1.1 Increase productivity

High-speed cutting of the spindle speed, feed rate compared 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 completed rough, semi-finishing and fine, and all other processes, the complex

can reach parts of the surface quality requirements, thus increasing the processing productivity and

competitiveness of products in the market.

1.2 Improve processing accuracy and surface quality

High-speed 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 high-

speed processing and milling marks the surface so that the parts greatly enhance the quality of the

surface. Processing Aluminum when up Ra0.40.6um, pieces of steel processing at up to Ra0.2 ~

0.4um.

1.3 Cutting reduce the heat

Because the main axis milling machine high-speed 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. High-speed 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 shortcomings to ensure that the tool is not high temperature under

the conditions of work, extended tool life.

1.4 This is conducive to processing thin-walled parts

High-speed cutting of small cutting force, a higher degree of stability, Machinable with high-

quality employees compared to the company may be very good, but other than the company'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 combination 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

compared to find the business models, through a comparative 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 companies 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 compared with the departments and posts, so more

practical significance, because the business models are not always good, but to compare 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 comparison, the two can be

found in the performance gap, a comparative 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 companies need to train and the training of the

way, but blind to training, such training is difficult to achieve the desired results. A comparison

only difference between this model is simple and practical training.

1.5 Can be part of some alternative technology, such as EDM, grinding high intensity and high

hardness processing

High-speed cutting a major feature of high-speed 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 treatment hardening of the workpiece required EDM, high-speed machining

replace the traditional method of cutting the processing, manufacturing process possible to omit

die in EDM, simplifying the processing technology and investment costs .

High-speed milling in the precincts of CNC machine tools, or for processing centre, also in the

installation of high-speed spindle on the general machine tools. The latter not only has the

processing capacity of general machine tools, but also for high-speed milling, a decrease of

investment in equipment, machine tools increased flexibility. Cutting high-speed processing can

improve the efficiency, quality improvement, streamline processes, investment and machine tool

investment and maintenance costs rise, but comprehensive, can significantly increase economic

efficiency.

2 High-speed milling

High-speed milling the main technical high-speed cutting technology is cutting the development

direction of one of it with CNC technology, microelectronic technology, new materials and new

technology, such as technology development to a higher level. High-speed machine tools and

high-speed tool to achieve high-speed cutting is the prerequisite and basic conditions, in high-

speed machining in the performance of high-speed machine tool material of choice and there are

strict requirements.

2.1 High-speed milling machine in order to achieve high-speed machining

General use of highly flexible high-speed CNC machine tools, machining centers, and some

use a dedicated high-speed milling, drilling. At the same time a high-speed machine tool spindle

system and high-speed feeding system, high stiffness of the main characteristics of high-precision

targeting and high-precision interpolation functions, especially high-precision arc interpolation

function. High-speed machining systems of the machine a higher demand, mainly in the following

areas:

General use of highly flexible high-speed CNC machine tools, machining centers, and some

use a dedicated high-speed milling, drilling. At the same time a high-speed machine tool spindle

system and high-speed feeding system, high stiffness of the main characteristics of high-precision

targeting and high-precision interpolation functions, especially high-precision arc interpolation

function. High-speed machining systems of the machine a higher demand, mainly in the following

areas:

High-speed milling machine must have a high-speed spindle, the spindle speed is generally

10000 ~ 100000 m / min, power greater than 15 kW. But also with rapid speed or in designated

spots fast-stopping performance. The main axial space not more than 0 .0 0 0 2 m m. Often using

high-speed spindle-hydrostatic bearings, air pressure-bearing, mixed ceramic bearings, magnetic

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摘要：

英文资料High-speedmillingHigh-speedmachiningisanadvancedmanufacturingtechnology,differentfromthetraditionalprocessingmethods.Thespindlespeed,cuttingfeedrate,cuttingasmallamountofunitswithinthetimeofremovalofmaterialhasincreasedthreetosixtimes.Withhighefficiency,highprecisionandhighqualitysurfaceasthebas...

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