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1、此文档是毕业设计外文翻译成品（ 含英文原文+中文翻译），无需调整复杂的格式！下载之后直接可用，方便快捷！本文价格不贵,也就几十块钱！一辈子也就一次的事！外文标题：Development of Ultrasonic Specifically Drilling Technology And Improvement of Construction of Ultrasonic Machine Tools外文作者：Vladimir N. Khmelev , Sergey S. Khmelev, Maxim V. Khmelev, Sergey V. Levin, Yuriy M. Kuzovnikov文
2、献出处：2018 IEEE 13th International Conference and Seminar of Young Specialists(如觉得年份太老，可改为近2年，毕竟很多毕业生都这样做)英文1896单词，11070字符(字符就是印刷符)，中文3108汉字。Development of Ultrasonic Specifically Drilling Technology And Improvement of Construction of Ultrasonic Machine ToolsAbstract :The article is devoted to develop
3、ment of specified ultrasonic equipment for specifically drilling of fragile and very hard materials.Index Terms:Ultrasonic, fragile and very hard materials, boring, drilling, equipment.I.FEATURES OF ULTRASONIC SPECIFICALLY DRILLINGDeveloping of technique led to universal applying of fragile and very
4、 hard materials such as glass, semiconducting materials, ferrites and ceramics. Therefore general using of fragile and very hard materials in various industry fields is limited by absence and imperfection of existing technologies of mechanical treatment.Using nowadays electrochemical, electro-erosio
5、n and electron-beam methods dont allow to solve the problems because the methods is useful for treating of only electrically conductive cloudy materials characterized by high energy cost of process and dont guarantee necessary accuracy of treatment.Available results of researches of different author
6、s 1,2 and researches carried out for many years in Laboratory of acoustic processes and equipment (BTI AltGTU) with OOO “Center of ultrasonic technologies”3 are confirmed that the one of most effective and perspective methods of treating of fragile and very hard materials is ultrasonic specifically
7、drilling.Benefits of such method, with treatment speed exceeding in 10 times speed of diamond cutter treatment, are in low process energy (not exceed energy of traditional metalworking), in possibility of treating of almost every fragile and very hard materials and in absence of residual stresses ex
8、cluding crack formation after treatment.By the using of ultrasonic methods it can be carried out the effectively processing of such materials like agate, diamond, germanium, granite, graphite, boron carbide, quartz,ceramic, corundum, silicon, marble, nephritis, pearl, ruby, sapphire, glass, hard all
9、oys, thermo corundum, porcelain, faience, ferrites, crystal, jasper etc.Ultrasonic treating technology includes inserting of abrasive suspension in work area, thats the space between oscillating with high frequency working tool ending and surface of treating material. Abrasive grains under the actio
10、n of oscillating tool strikes beat the surface of treated material and realize it destruction.Applying of ultrasonic vibrations allows to intensify the process of fragile destruction of treating material. Usually abrasive material is the boron carbide or silicon carbide and a liquid is a water.Start
11、ing since 70-ty years of last century the fundamental physical principles of ultrasonic treatment were studied in details, the common requirements to technical features of equipment of various functionality and productivity were defined. It allows to make many ultrasonic machine tools for different
12、products and materials. These machine tools were operated successfully at factories of national factories during last decade.Therefore evolution of equipment, finding of modern materials and products and tightening of quality and productivity requirements were allowed to understand the fact that ins
13、ignificant earlier disadvantages of applied machine tools limit using in high-tech fields of modern industry. Among such advantages there are limited diameter and depth of executable perforations, unreliable mounting of working tools and insufficient process productivity.It has place the necessity t
14、o further perfecting of ultrasonic machine tools. The article is devoted to some technical solutions directed to making of ultrasonic machine tools.II.PERFECTION AND DEVELOPMENT OF PASSIVE WORKING TOOLS FOR SPECIFICALLY DRILLINGAt realization of technological processes of fragile and hard materials
15、ultrasonic treating in industry conditions it is necessary to perform various technological procedures (to perform through and blind bores of different diameter and shape). Each of such technological procedures performs more efficiently with using of specific working tools.Its known, the working too
16、ls strikes to abrasive grain in process of ultrasonic vibrating system working. Due to this it has place the destruction of working tools surface, change of it length and shape (up to 5 percents from depth of bores drilling in glass). This leads to change of: working resonant frequency, quality factor of ultrasonic vibrating system and treatment accuracy. Thereby for ultrasonic machine tool completion the worki
