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The Mechanism And Experimental Investigation Of Ultrasonic Deburring Based On The Cavitation Effects

Posted on:2016-04-26Degree:MasterType:Thesis
Country:ChinaCandidate:H C ZhangFull Text:PDF
GTID:2272330470451970Subject:Mechanical engineering
Abstract/Summary:PDF Full Text Request
With the rapid development of science and technology, the market also putforward higher requirements for the machining accuracy and the surface qualityof products. The application of precision, complex and microminiaturecomponents has been extended more and more widely in aerospace, defenseindustry and national economy. With the development of manufacturingtechnology and machining process for components, surface quality ofcomponents have been improved greatly, The burrs in the traditional sense canbe removed completely, but for precision components, micro burrs’ legitimacyare in question. For example, precision requirement for some aviation precisioncomponents can be up to0.001mm level or even higher. Therefore, how toremove the micro-burrs effectively is always a difficult problem formanufacturers.By comparing with the traditional way of deburring, we can find thatultrasonic deburring has the incomparable advantages. For components, withhigh accuracy, can not change the morphology and size, complicated shape or pollution-free, the way of electrochemistry, high-pressure water jet or thermalenergy deburring unable to meet the demands. Ultrasound can not only removethe burrs, but also clean the parts. Although ultrasonic technology has beenincreasingly mature, ultrasonic deburring mechanism is lack of system research.The main works of this paper as follow:1. The actuality of advanced deburring methods make a summary,comparison of different methods, analyze the scope of application of ultrasonicdeburring.2. Analyze the mechanism of ultrasonic deburring, evaluate the effect ofvarious parameters on the deburring quality.3. Using of BJG-TY2400ultrasonic deburring equipment and tap water asmedium, put aluminum foil into the cleaning tank, using cavitation erodes thealuminum foil, MATLAB software and scanner are used to analyze thealuminum foil erosion image and achieve the goal of quantitative measurement.The ultrasonic cavitation field can be established at the same time.4. Single cavitation bubble subjected to underwater explosion aresimulated through the ABAQUS structure-acoustic coupling method, change theexplosion distance and the thickness of the burr, observe the force condition ofburr.5. To take advantage of BJG-TY2400equipment machining components,using the optical microscope observation of burrs, and measure the burr size,summarize the scope of ultrasonic deburring size. Through theoretical analysis, simulation and experimental results, itprovide some certain theories and practice references for the using ultrasonicdeburring in future.
Keywords/Search Tags:ultrasonic, cavitation effect, micro-burr, numerical simulation, experimental research
PDF Full Text Request
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