本文選題：三維橢圓振動(dòng)輔助切削 + 微織構(gòu)�。� 參考：《南京航空航天大學(xué)》2017年碩士論文

【摘要】：為了提高橢圓振動(dòng)輔助切削加工復(fù)雜微織構(gòu)的適應(yīng)性,解決微織構(gòu)低成本、高效率制造的需求,本文以三維橢圓振動(dòng)輔助切削加工復(fù)雜微織構(gòu)為研究對象,提出實(shí)現(xiàn)空間橢圓軌跡的輔助切削裝置的設(shè)計(jì)方法,對三維橢圓振動(dòng)輔助切削裝置設(shè)計(jì)與優(yōu)化、三維橢圓輔助切削性能測試以及三維橢圓輔助切削微織構(gòu)形貌建模進(jìn)行研究,建立三維橢圓振動(dòng)輔助切削加工系統(tǒng)。論文主要研究內(nèi)容和成果包括:1.提出了一種三維橢圓振動(dòng)輔助切削裝置設(shè)計(jì)方法。通過考慮橢圓振動(dòng)輔助切削裝置的布置形式,設(shè)計(jì)三維橢圓振動(dòng)輔助切削裝置的最簡示意圖,基于最簡示意圖設(shè)計(jì)三維橢圓振動(dòng)切削裝置的結(jié)構(gòu)示意圖,根據(jù)結(jié)構(gòu)示意圖建立三維橢圓振動(dòng)輔助切削裝置模型,構(gòu)造三維橢圓振動(dòng)輔助切削裝置輸出軌跡模型,利用有限元軟件對裝置進(jìn)行模型分析與優(yōu)化。2.研究并開展了三維橢圓振動(dòng)輔助切削裝置的性能測試。為了測試設(shè)計(jì)的三維橢圓振動(dòng)輔助切削裝置的輸出性能,搭建了三維橢圓振動(dòng)輔助切削裝置性能測試平臺,開展了裝置的頻率響應(yīng)測試、相位差測試、輸出電壓測試、分辨率測試、最大行程測試,得到了裝置的輸出性能。3.研究并實(shí)現(xiàn)了三維橢圓振動(dòng)輔助切削微織構(gòu)的形貌建模和仿真方法。通過建立三維橢圓振動(dòng)輔助切削加工的運(yùn)動(dòng)軌跡方程,由刀具刀尖圓弧沿著三維橢圓振動(dòng)輔助切削加工的運(yùn)動(dòng)軌跡掃掠,將得到的掃略曲面與微織構(gòu)所在的目標(biāo)基準(zhǔn)表面求交,從而獲得三維橢圓振動(dòng)輔助切削加工微織構(gòu)的形貌模型,依據(jù)建立的形貌模型和仿真方法,分析了三維橢圓振動(dòng)輔助切削裝置的振動(dòng)參數(shù)和加工參數(shù)對織構(gòu)形貌的影響。4.研究并開發(fā)了三維橢圓振動(dòng)輔助切削加工系統(tǒng)。通過對三維橢圓振動(dòng)輔助切削加工系統(tǒng)各部分的研究和選型,搭建了加工系統(tǒng),并對凹坑微織構(gòu)進(jìn)行了加工測試。經(jīng)實(shí)驗(yàn)表明,本文的三維橢圓振動(dòng)輔助切削加工系統(tǒng)達(dá)到了預(yù)期的目的。
[Abstract]:In order to improve the adaptability of elliptical vibration assisted machining complex microtexture and solve the need of low cost and high efficiency manufacture of microtexture, this paper takes 3D elliptical vibration assisted machining complex microtexture as the research object. The design and optimization of 3D elliptical vibration assisted cutting device, the testing of 3D elliptical assisted cutting performance and the modeling of 3D elliptical assisted cutting micro-texture morphology are proposed. A three-dimensional elliptical vibration aided cutting system is established. The main contents and achievements of this paper include: 1. A design method of three-dimensional elliptical vibration assisted cutting device is presented. By considering the layout of the elliptical vibration assisted cutting device, the simplest schematic diagram of the three-dimensional elliptical vibration auxiliary cutting device is designed, and the structure diagram of the three-dimensional elliptical vibration cutting device is designed based on the simplest schematic diagram. According to the structure diagram, the model of 3D elliptic vibration assisted cutting device is established, and the output trajectory model of 3D elliptical vibration auxiliary cutting device is constructed. The finite element software is used to analyze and optimize the model of the device. The performance test of three-dimensional elliptical vibration assisted cutting device is studied and carried out. In order to test the output performance of the designed 3D elliptical vibration assisted cutting device, a three-dimensional elliptical vibration assisted cutting device performance test platform was built, and the frequency response test, phase difference test, output voltage test of the device were carried out. Resolution test, maximum stroke test, the output performance of the device. 3. 3. The shape modeling and simulation method of 3D elliptical vibration assisted cutting microtexture is studied and realized. By establishing the motion trajectory equation of 3D elliptical vibration assisted cutting, the cutting tool tip arc is swept along the moving track of 3D elliptical vibration assisted cutting, and the resultant scanning surface is intersected with the reference surface of the target in which the microtexture is located. The shape model of 3D elliptical vibration assisted machining microtexture was obtained. According to the established morphology model and simulation method, the effect of vibration parameters and machining parameters of 3D elliptical vibration assisted cutting device on texture morphology was analyzed. A three-dimensional elliptical vibration aided cutting system is studied and developed. Through the research and selection of various parts of 3D elliptical vibration assisted machining system, a machining system was built, and the machining test of pit microtexture was carried out. The experimental results show that the three-dimensional elliptical vibration aided cutting system has achieved the desired purpose.
【學(xué)位授予單位】：南京航空航天大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TG502

【參考文獻(xiàn)】

相關(guān)期刊論文 前4條

1 馬春翔,王艷,社本英二,森，

本文編號：1972075