論文標(biāo)準(zhǔn)WORD格式排版 23頁(yè)

目 錄
第一章前言 …………………………………………………………1
§1.1引言 ……………………………………………………………1
§1.2擠壓的分類 …………………………………………………1
§1.3擠壓技術(shù)的特點(diǎn)及應(yīng)用范圍 ………………………………2
第二章挀蝫……………………………………………………………4
§2.1設(shè)計(jì)任務(wù)書(shū) ……………………………………………………4
§2.2工藝分析 ………………………………………………………5
§2.3工藝方案的確定 ………………………………………………5
§2.4工藝方案的校核 ………………………………………………6
§2.5毛坯選擇與制備 ………………………………………………7
§2.6工藝參數(shù)的計(jì)算 ………………………………………………8
§2.7 模具設(shè)計(jì) ……………………………………………………10
§2.8 擠壓過(guò)程 毛坯與模具的潤(rùn)滑及中間退火工藝 ……………13
第三章 結(jié)論 …………………………………………………………15
第三章致謝 …………………………………………………………16
第四章參考文獻(xiàn) ……………………………………………………17
附： 英文參考

摘要
本文的主要內(nèi)容是對(duì)擠壓模具的設(shè)計(jì)。通過(guò)對(duì)冷擠壓模具設(shè)計(jì)過(guò)程的闡述，詳細(xì)的說(shuō)明了冷擠壓模具的設(shè)計(jì)步驟﹑設(shè)計(jì)要領(lǐng)﹑設(shè)計(jì)細(xì)節(jié)﹑與注意事項(xiàng)。重點(diǎn)表述了冷擠壓實(shí)心件﹑空心件的模具設(shè)計(jì)。
此件為一個(gè)長(zhǎng)為428mm,最大外徑為64mm，中間還有一30mm深，長(zhǎng)為342mm的拉桿?？紤]到此制件機(jī)加工十分困難，因此，選擇擠壓工藝來(lái)成形此制件。另外此制件的材料為42CrMo,硬度很大。因此，本設(shè)計(jì)的重點(diǎn)是單位擠壓力的計(jì)算及校核。還有此制件的長(zhǎng)為428mm，壓力機(jī)開(kāi)模高度及頂出行程的校核也是本設(shè)計(jì)的主要內(nèi)容。
本設(shè)計(jì)采用冷擠壓正擠工藝來(lái)成形此制件。
模具作為一種高效快捷的加工工具，在現(xiàn)代工業(yè)中得到了廣泛的應(yīng)用并日益完善。隨著加工技術(shù)的提高和先進(jìn)工具的應(yīng)用，模具設(shè)計(jì)越來(lái)越顯示其獨(dú)特的創(chuàng)造性和藝術(shù)感。在日益完善的過(guò)程中，模具設(shè)計(jì)保留了其永恒不變的一面，如擠壓模具的頂出方式﹑固定方法和上下模結(jié)構(gòu)等。因此，可以利用以前加工的模具的大部分結(jié)構(gòu)，在加上一些成形零部件即可組成一套全新的模具。這便最大限度的節(jié)約了模具成本，充分利用了現(xiàn)有的資金。本設(shè)計(jì)的兩個(gè)成形工藝就是通過(guò)更換凸模來(lái)完成該制件。

關(guān)鍵詞：擠壓， 冷擠壓， 模具設(shè)計(jì)， 凸模， 成形工藝

Pull the pole to squeeze the craft and molding tool design
Summary
The textual and main contents design squeeze molding tool. Pass right cold squeeze the describe that molding tool design process, expatiation cold squeeze the molding tool's design step the ﹑ design the main theme ﹑ the design the details ﹑ and announcements. Point form cold squeeze the molding tool design for. Hollow piece of solid piece.
This for a long for 428 mms, biggest and outside path is 64 mm, in the center still reach a 30 mms are deep, long for 342 pulling of mms pole.In consideration of this make a machine to process very difficult, therefore, the choice squeeze the craft. Another this make the piece's material to 42 CrMo, degree of hardness very big. Therefore, the point of this design is an unit to squeeze the calculation and the examination of the dint.Still have this to make a examination for of longly for 428 mms, pressure machine open the mold high degree and crest to out the route of travel is also main contents this design.
This design the adoption is cold to squeeze the positive craft to take shape this to make the piece.
The molding tool be used ases an efficiently fast process the tool, and got the extensive application in the modern industry and increasingly perfect. A long with the exaltation that application, molding tool design that processing technology more and more show its special creation to feel with art with the advanced tool .At increasingly inside of perfect process, molding tool the design reserved its eternal constant of a crest for, if squeezing the molding tool out way, fix method with top and bottom mold construction etc. Therefore, can make use of the molding tool's big and part of constructionses that process befores, at plus some to take shape the zero parts to can immediately constitute an all new molding tool. This is then utmosted to economize the molding tool cost, to share profit to use current funds. This design of two take shape the craft is to pass to replace the convex mold to complete to should make the piece.

Key phrase: squeeze, cold squeeze, molding tool design, convex mold, take shape the craft
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