本文選題：彈性材料 + 微細(xì)電解加工�。� 參考：《西安工業(yè)大學(xué)》2015年碩士論文

【摘要】：隨著微納米技術(shù)的快速發(fā)展,微細(xì)電解加工技術(shù)已成為先進(jìn)制造技術(shù)的一個(gè)重要方面。微細(xì)電解加工技術(shù)可以解決傳統(tǒng)加工方法不能實(shí)現(xiàn)或難以實(shí)現(xiàn)的難切削金屬材料微小型零件的加工制造問(wèn)題。針對(duì)某軍用飛機(jī)加速度計(jì)的薄壁撓性零件存在的加工難題(彈性材料難切削、結(jié)構(gòu)尺寸微小成形加工困難等),利用微細(xì)電解加工方法對(duì)撓性零件上的矩形微槽和梯形狀微結(jié)構(gòu)進(jìn)行了工藝研究,對(duì)彈性材料微結(jié)構(gòu)的加工難題的解決和微細(xì)電解加工方法的發(fā)展都具有促進(jìn)作用。在微細(xì)電解加工理論研究基礎(chǔ)上,分析了彈性材料3J21的組成成分,選擇了合適的電解液,并進(jìn)行了工藝參數(shù)(加工電壓、進(jìn)給速度、脈沖寬度、電解液濃度等)對(duì)彈性材料電解加工精度影響的基礎(chǔ)性實(shí)驗(yàn),得到加工彈性材料所需較優(yōu)的工藝參數(shù)組合。通過(guò)研究分析微細(xì)圓柱電極制作原理和成形規(guī)律,采用微細(xì)圓形孔在線電解反拷成形方法,成功制作出實(shí)驗(yàn)所需的工作段直徑為10μm的多階微細(xì)圓柱電極。在分析撓性零件結(jié)構(gòu)的基礎(chǔ)上,制定了梯形狀微結(jié)構(gòu)和矩形微槽結(jié)構(gòu)的微細(xì)電解銑削加工工藝方案。利用微細(xì)電解行銑方法加工出了上底寬1.305mm、下底寬0.503mm、高為0.403mm的梯形狀微結(jié)構(gòu)。采用粗、精加工兩個(gè)階段進(jìn)行了矩形微槽結(jié)構(gòu)的微細(xì)電解銑削加工利用直徑為80μm的微細(xì)圓柱電極通過(guò)行銑進(jìn)行粗加工,并為精加工留一定加工余量；采用直徑為10μmm底面絕緣的微細(xì)圓柱電極對(duì)矩形微槽的側(cè)面進(jìn)行環(huán)形精修,然后利用側(cè)面絕緣的多階微細(xì)圓柱電極對(duì)矩形微槽的底面進(jìn)行平面行銑,成功加工出槽寬為150.6μmm、槽底厚度為10.5μm、槽底半徑為10.3μm的矩形微槽。所加工的梯形狀微結(jié)構(gòu)和矩形微槽均滿足設(shè)計(jì)要求。理論分析和實(shí)驗(yàn)研究表明,微細(xì)電解銑削加工技術(shù)是彈性材料鎳鐵合金3J21材料微小結(jié)構(gòu)的理想加工方法。該研究解決了某軍用飛機(jī)加速度計(jì)撓性零件上微小結(jié)構(gòu)的加工難題,可為同類或相似彈性材料微小結(jié)構(gòu)的難加工問(wèn)題解決提供借鑒,同時(shí)對(duì)微細(xì)電解加工技術(shù)的發(fā)展也具有一定促進(jìn)作用。
[Abstract]:With the rapid development of nanotechnology, micro machining technology has become an important aspect of advanced manufacturing technology. The electrochemical micro machining technology can not solve the processing of traditional processing method realized the hard cutting material micro parts manufacturing problems. Aiming at the problem of machining a military aircraft accelerometer thin flexible parts (elastic material cutting, small size structure forming difficulty, etc.) of the rectangular flexible parts of the micro groove and trapezoid micro structure are studied by using electrochemical micro machining method, have a role in promoting the development and solve the micro electrolytic machining method of elastic material micro structure. The processing problem in ECM on the basis of theoretical research, composition of 3J21 elastic material analysis, select the appropriate electrolyte, and the process parameters (processing power Pressure, feed rate, pulse width, electrolyte concentration) on the basis of electrochemical machining accuracy of elastic material influence, processed elastic material required for the processing of optimum parameters. Through the analysis of cylindrical micro electrode fabrication principle and the forming rule, the online micro forming method of circular hole electrolytic cuffed and successful production work the experimental diameter required for multi order micro cylinder electrodes 10 m. Based on the analysis of the structure of flexible parts, making the trapezoidal shaped micro structure and rectangular micro groove structure micro electrochemical milling process. Using micro electrolysis method for milling processing on the bottom width of 1.305mm, bottom width 0.503mm high trapezoidal shaped 0.403mm micro structure. The rough, finishing two stages of rectangular micro groove structure of micro electrochemical milling with micro cylinder electrodes of 80 m diameter by rough milling Processing, and leave some allowance for finish machining; with the diameter of 10 mm at the bottom side of the insulated cylindrical micro electrode on the rectangular micro groove of annular refinement, and then use the multi order micro cylinder electrodes on the side surface of the insulating rectangular micro groove bottom plane for milling, processing groove width of 150.6 mm, bottom thickness is 10.5 m, bottom radius is 10.3 m rectangular micro groove shape. The processing of micro structure and rectangular micro groove can meet the design requirements. Theoretical analysis and experimental results show that the micro electrochemical milling technology is an ideal processing method of micro structure of elastic material of nickel iron alloy 3J21 material the study solves the problem of machining micro accelerometer military aircraft structure flexible parts, can provide reference for similar or similar to solve the problem of difficult machining of micro structure of elastic material, and the development of electrochemical micromachining technology is It has a certain effect.

【學(xué)位授予單位】：西安工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：V261.5

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本文編號(hào)：1762834