【正文】
具有生產(chǎn)效率高、節(jié)約成本,節(jié)約原材料、提高產(chǎn)品質(zhì)量、降低成本等優(yōu)點(diǎn)。(2) 按照擠壓毛坯和工件形狀來分,有:棒料擠壓,管材擠壓,杯形件擠壓,竿竿擠壓,杯杯擠壓,扁平齒形擠壓……。 從不同的角度、按照不同的特征,冷擠壓有不同的分類。 From a practical sense, to take advantage of domestic production of forging equipment imports, and increased production efficiency, this will China39。關(guān)鍵詞:飛輪 冷擠壓 液壓機(jī) Isolators motorcycle flywheel cold extrusion process and die design (Chongqing Technology and Business University, Institute of Mechanical Engineering Mold 05 classes) Abstract: This paper reviews the cold extrusion technology at home and abroad the history and development of the flywheel and the cold extrusion of the status quo at home and abroad are analyzed. Paper also proposed a flywheel cold extrusion and resolve the difficult ideas and programs to process the necessary theoretical analysis and research. This article will focus on the mold design, forming the intent is to allow the flywheel can be achieved. In the mold design and installation of on, the writer should be a variety of novel structures, such as the use of prestressed die die, die to increase strength, to extend die life and save precious metals. From an economic point of view and application, installed on the use of molds made SY4100 kN hydraulic press. 從經(jīng)濟(jì)和適用的角度,模具安裝上采用國產(chǎn)SY4100千牛液壓機(jī)。本文將重點(diǎn)放在模具設(shè)計(jì)方面,意圖是讓飛輪成形得以實(shí)現(xiàn)。 畢業(yè)設(shè)計(jì)論文 第 45 頁 共 45 頁摩托車單向器飛輪冷擠壓成形工藝及模具設(shè)計(jì)(xxxxxxxxx,機(jī)械工程學(xué)院05級(jí)模具班)摘要:本文綜述了國內(nèi)外冷擠壓技術(shù)的歷史及發(fā)展?fàn)顩r,并對(duì)飛輪的冷擠壓成形國內(nèi)外現(xiàn)狀進(jìn)行了分析。論文還提出了飛輪冷擠壓成形的難點(diǎn)及解決思路,對(duì)工藝方案進(jìn)行了必要的理論分析和研究。在模具的設(shè)計(jì)和安裝上,作者應(yīng)該了多種新穎的結(jié)構(gòu),例如凹模采用預(yù)應(yīng)力組合凹模,可以提高凹模強(qiáng)度,延長模具壽命,節(jié)省貴金屬材料。 從現(xiàn)實(shí)意義上說,能夠利用國產(chǎn)的鍛壓設(shè)備生產(chǎn)進(jìn)口產(chǎn)品,并且提高了生產(chǎn)效率,這將給我國的這個(gè)摩托車生產(chǎn)大國帶來豐厚的效益。s largest producer of the motorcycle brought huge benefits. Keywords: Cold extrusion. Hydraulic .Flywheel目 錄 前言…………………………………………………………………………5冷擠壓簡(jiǎn)介………………………………………………………………… 8………………………………………………………… 8…………………………………………………………………… 8…………………………………………………………………… 8………………………………………………………………… 9………………………………………………………………… 9 …………………………………………… 10……………………………………………… 10……………………………………… 11……………………………………… 11冷擠壓毛坯的制備………………………………………………………… 12………………………………………………………… 12……………………………………………………… 12………………………………………………………… 13…………………………………………………… 14 …………………………………… 15………………………………………………………… 15………………………………………………………… 15………………………………………………………… 15冷擠壓工藝………………………………………………………………… 18……………………………………………………… 18……………………………………………………… 18冷擠壓模具設(shè)計(jì)…………………………………………………………… 20………………………………………………… 20…………………………………………………… 21………………………………………………………… 22………………………………………………………… 23………………………………………… 24………………………………………………………………… 24內(nèi)齒冷擠壓件可能出現(xiàn)的缺陷和產(chǎn)生的原因…………………………… 25致謝………………………………………………………………………… 26參考文獻(xiàn)…………………………………………………………………… 27附錄………………………………………………………………………… 28 三維造型圖……………………………………………………………………36 前 言 通過設(shè)備施加作用力,壓縮金屬坯料使之從沖頭或凹模的型腔孔或空隙中擠出成形的一種冷鍛加工方法叫冷擠壓。(1) 按照金屬被擠出的方向與加