本文選題：金剛石刀具 + 刀具參數(shù)　； 參考：《長(zhǎng)春理工大學(xué)》2017年碩士論文

【摘要】：單點(diǎn)金剛石車削技術(shù)采用單晶金剛石刀具對(duì)工件表面做微米級(jí)范圍的去除,使被加工的光學(xué)零件表面達(dá)到精度要求,實(shí)現(xiàn)超精密車削的目的。尤其是單點(diǎn)金剛石車削具有快速、低成本和高效等優(yōu)勢(shì),使其在光學(xué)、醫(yī)療器械、汽車和通信等領(lǐng)域得到廣泛應(yīng)用。在現(xiàn)代光學(xué)技術(shù)領(lǐng)域中,隨著光學(xué)技術(shù)的快速發(fā)展,對(duì)光學(xué)器件的表面精度要求越來(lái)越高,隨之帶來(lái)的對(duì)當(dāng)代超精密加工精度也越來(lái)越高,同時(shí)在單點(diǎn)金剛石車削過(guò)程中,圓弧刃金剛石刀具的各項(xiàng)參數(shù)是影響光學(xué)零件表面加工精度的一項(xiàng)重要因素,通過(guò)了解刀具各項(xiàng)參數(shù)的選擇及其對(duì)工件的作用機(jī)理,能夠有效的控制光學(xué)元件的表面質(zhì)量以及形狀精度。本文為了了解單晶金剛石刀具在切削過(guò)程中對(duì)工件表面質(zhì)量的影響,首先簡(jiǎn)要介紹了單晶金剛石晶體的性質(zhì),然后對(duì)單晶金剛石刀具刃口的鋒利度、加工時(shí)刀具幾何參數(shù)的合理選擇,以及其后刀面的難易磨方向和刀尖圓弧上的難磨比做了深入的研究。圍繞著圓弧刃金剛石刀具對(duì)光學(xué)零件的加工工藝,先從表面粗糙度的成型機(jī)理入手,分析不同后刀面輪廓刀具對(duì)不同形狀工件表面殘留高度的影響,并建立了不同后刀面輪廓刀具對(duì)工件表面粗糙度影響的理論計(jì)算模型,進(jìn)一步分析其對(duì)工件表面粗糙度影響的差異。再根據(jù)刀具的各種偏差,本文深入的分析了刀具刃口波紋度對(duì)光學(xué)零件表面面形的影響,建立刀具刃口波紋度與工件表面面形誤差之間的對(duì)應(yīng)關(guān)系,并分析刀具刃口波紋度對(duì)光學(xué)零件表面面形的影響,根據(jù)數(shù)學(xué)模型得到隨著刀具刃口波紋度的增加,對(duì)工件表面面形的影響越大,以及在利用相同刃口波紋度刀具對(duì)光學(xué)零件進(jìn)行切削時(shí),加工的口徑越大,刃口波紋度對(duì)其面形影響越嚴(yán)重。最后,本文經(jīng)過(guò)對(duì)黃銅和鋁的切削實(shí)驗(yàn),得到刀具各項(xiàng)參數(shù)對(duì)工件表面粗糙度和面形影響的實(shí)驗(yàn)結(jié)果,并對(duì)實(shí)驗(yàn)結(jié)果與理論分析相對(duì)比,進(jìn)一步分析刀具各項(xiàng)參數(shù)對(duì)工件表面的影響,最終實(shí)現(xiàn)合理的選擇刀具參數(shù)來(lái)滿足加工要求。
[Abstract]:Single point diamond turning technology uses single crystal diamond cutting tools to remove the workpiece surface in the range of micron order, which makes the surface of the optical parts machined to meet the precision requirement and achieve the purpose of ultra-precision turning. In particular, single point diamond turning has the advantages of high speed, low cost and high efficiency, which makes it widely used in the fields of optics, medical devices, automobiles and communications. In the field of modern optical technology, with the rapid development of optical technology, the surface accuracy of optical devices is becoming more and more high, and the precision of ultra-precision machining is becoming higher and higher. At the same time, in the process of single point diamond turning, The parameters of diamond cutting tools with circular arc edge are an important factor affecting the surface machining accuracy of optical parts. The selection of the parameters of the cutting tools and the mechanism of their action on the workpieces are understood. It can effectively control the surface quality and shape accuracy of optical elements. In order to understand the influence of single crystal diamond cutting tools on the surface quality of workpiece, the properties of single crystal diamond crystal and the sharpness of the cutting edge of single crystal diamond tool are introduced briefly in this paper. The reasonable selection of the geometric parameters of the tool, the direction of the grinding of the tool surface and the ratio of the grinding on the arc of the cutter tip are studied in detail. Based on the machining process of optical parts with circular arc edge diamond tools, the influence of different rear cutter profile tools on the surface residual height of workpieces with different shapes is analyzed, starting with the forming mechanism of surface roughness. The theoretical calculation model of the influence of different profile tools on the surface roughness of workpiece is established, and the difference of the influence on the surface roughness of workpiece is analyzed. Then according to the deviation of cutting tool, this paper deeply analyzes the influence of cutting edge corrugation on the surface shape of optical parts, and establishes the corresponding relationship between tool edge corrugation and workpiece surface shape error. The influence of cutting edge corrugation on the surface profile of optical parts is analyzed. According to the mathematical model, the greater the influence on the surface shape of workpiece is obtained with the increase of cutting edge corrugation. And when cutting optical parts with the same cutting edge corrugation tool, the larger the diameter of machining, the more serious the influence of edge corrugation on the surface shape. Finally, through cutting experiments on brass and aluminum, the experimental results of the influence of cutting tool parameters on the surface roughness and surface shape of workpiece are obtained, and the experimental results are compared with the theoretical analysis. The influence of cutting tool parameters on the workpiece surface is further analyzed, and the reasonable selection of tool parameters to meet the machining requirements is realized.
【學(xué)位授予單位】：長(zhǎng)春理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TG71;TG51

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 顏認(rèn);馬改;陳小丹;周一丹;;單晶金剛石刀具機(jī)械刃磨技術(shù)進(jìn)展[J];工具技術(shù);2016年09期

2 黃東方;;關(guān)于金剛石刀具刃磨技術(shù)的探討[J];科技風(fēng);2013年13期

3 楊旭東;;現(xiàn)實(shí)情況下刀具的實(shí)際前角、后角[J];科技創(chuàng)新導(dǎo)報(bào);2012年29期

4 王毅;余景池;;超精密車削刀具偏置校正方法的研究[J];機(jī)床與液壓;2012年15期

5 王毅;余景池;;超精密車削金剛石刀具刃口誤差的高精度補(bǔ)償[J];光電工程;2011年01期

6 任違;孔金星;韓長(zhǎng)慶;;超精密車削中精確對(duì)刀方法[J];機(jī)床與液壓;2010年16期

7 張效棟;房豐洲;程穎;魏桂爽;;復(fù)雜非球面鏡高效超精密車削加工法(英文)[J];納米技術(shù)與精密工程;2010年04期

8 康戰(zhàn);聶鳳明;劉勁松;張廣平;;單點(diǎn)金剛石精密數(shù)控車削加工技術(shù)及發(fā)展前景分析[J];光學(xué)技術(shù);2010年02期

9 袁哲俊;;國(guó)內(nèi)外精密加工技術(shù)最新進(jìn)展[J];工具技術(shù);2008年10期

10 王雷;;數(shù)控車床用切削刀具補(bǔ)償計(jì)算[J];機(jī)械設(shè)計(jì)與制造;2008年07期

相關(guān)博士學(xué)位論文 前2條

1 景秀并;超精密加工數(shù)值模擬與實(shí)驗(yàn)研究[D];天津大學(xué);2010年

2 宗文俊;高精度金剛石刀具的機(jī)械刃磨技術(shù)及其切削性能優(yōu)化研究[D];哈爾濱工業(yè)大學(xué);2008年

相關(guān)碩士學(xué)位論文 前4條

1 于慧娟;光學(xué)自由曲面單點(diǎn)金剛石超精密車削理論與技術(shù)研究[D];吉林大學(xué);2015年

2 許宏淮;單點(diǎn)金剛石車削加工脆性光學(xué)材料表面粗糙度的控制研究[D];復(fù)旦大學(xué);2012年

3 竇建利;光學(xué)自由曲面車削等殘高刀具路徑規(guī)劃的研究[D];吉林大學(xué);2012年

4 李智;單晶金剛石研磨方法與機(jī)理的研究[D];大連理工大學(xué);2004年

，

本文編號(hào)：2026616