【正文】 ...3第一章 緒論 ................................................................................................................................3 冷擠壓成形技術(shù)發(fā)展概況 .................................................................................................4 選題依據(jù)和設(shè)計(jì)主要內(nèi)容 ................................................................................................6 畢業(yè)設(shè)計(jì)（論文）的內(nèi)容 .........................................................................................6 畢業(yè)設(shè)計(jì)（論文）的要求 ........................................................................................6第二章 冷擠壓工藝設(shè)計(jì) ..........................................................................................................7 擠壓工藝步驟 .....................................................................................................................7 工藝設(shè)計(jì)步驟 ....................................................................................................................9 計(jì)算毛坯的體積 .........................................................................................................9 確定坯料尺寸 ...........................................................................................................10 計(jì)算冷擠壓變形程度 ...............................................................................................11 確定擠壓件的基本數(shù)據(jù) ...........................................................................................13 確定擠壓次數(shù) ...........................................................................................................13 工序設(shè)計(jì) ...................................................................................................................13 工藝方案確定 ...........................................................................................................19 各主要工序工作特點(diǎn)進(jìn)一步分析 ...........................................................................21第三章 壓力設(shè)備選擇 ............................................................................................................24 各主要工序所需鐓擠力 ..................................................................................................24 主要設(shè)備選用 ..................................................................................................................25第四章 模具設(shè)計(jì) ........................................................................................................................26 冷擠壓模具設(shè)計(jì)要求 .......................................................................................................27 凸模設(shè)計(jì)依據(jù) ...................................................................................................................28 冷擠壓組合凹模設(shè)計(jì)依據(jù) ...............................................................................................29 凸模設(shè)計(jì) ...........................................................................................................................34 鐓平凸模設(shè)計(jì) ...........................................................................................................34 凹模設(shè)計(jì) ...................................................................................................................36 預(yù)成形模具設(shè)計(jì) ..............................................................................................................37 預(yù)成形凸模設(shè)計(jì) .......................................................................................................38 預(yù)成形凹模設(shè)計(jì) .......................................................................................................39 終成形模具設(shè)計(jì) ..............................................................................................................41 終成形凸模設(shè)計(jì) .......................................................................................................41 終成形凹模設(shè)計(jì) .......................................................................................................42 冷擠壓模架設(shè)計(jì) ...............................................................................................................43 冷擠壓模架設(shè)計(jì)的基本原則 ...................................................................................43 模架的設(shè)計(jì) ...............................................................................................................44 其它零件設(shè)計(jì) ...........................................................................................................46安徽建筑工業(yè)學(xué)院畢業(yè)論文2第五章 擠壓模具零件加工工藝的編制 ................................................................................51 加工工藝編制原則 ..........................................................................................................51 加工工藝的編制 ..............................................................................................................51第六章 總結(jié)及課題展望 ............................................................................................................54 本文工作總結(jié) ..................................................................................................................54 課題展望 ..........................................................................................................................55參考文獻(xiàn) ......................................................................................................................................56謝 辭 ........................................................................................................................................57附錄一：英文科技文獻(xiàn)翻譯 ......................................................................................................58英文翻譯： ..................................................................................................................................63附錄二 畢業(yè)設(shè)計(jì)任務(wù)書 ..........................................................................................................67安徽建筑工業(yè)學(xué)院畢業(yè)論文3冷擠壓模具設(shè)計(jì)及其成形過程機(jī)械與電氣工程學(xué)院 機(jī)械設(shè)計(jì)制造及其自動(dòng)化專業(yè)06 城建機(jī)械 喬紅嬌 指導(dǎo)老師 雷聲第一章 緒論擠壓就是零件金屬毛坯放在擠壓模腔中，在一定溫度下，通過壓力機(jī)上固定的凸?；虬寄Ｏ蛎魇┘訅毫Γ菇饘倜鳟a(chǎn)生塑性變形而制得零件的加工方法。擠壓的加工原理是金屬坯料處于三向壓應(yīng)力狀態(tài)下變形時(shí)，能大大提高金屬的塑性，允許金屬有較大的變形。擠壓即可在專用擠壓機(jī)上進(jìn)行，也可在一般的機(jī)械壓力機(jī)、液壓機(jī)、摩擦壓力機(jī)以及高速錘上進(jìn)行。而冷擠壓除了前面列出的共性優(yōu)點(diǎn)外，還有它自己獨(dú)特的優(yōu)點(diǎn)。擠壓按照擠壓坯料的溫