汽车刹车片模具设计论文Word文档格式.docx

汽车刹车片模具设计论文Word文档格式.docx

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可加工复杂形状工件等一系列优点，使其在现代工业中的地位也越来越高。

相应

的，粉末冶金模具作为现代高速成型技术在工艺装备中起到越来越大的作用。

特

别是在汽车行业中应用的比例越来越重,是现代汽车行业发展的重要支柱之一,

现代工业发展的一个方向.

本次设计了一套汽车刹车片的压制模。

本课题主要是从对零件压坯的尺寸，密度，质量

和高度等计算，来确定阴模与模冲的类型，再通过对压机的选择设计所需要的模具，顶出方

式的选择,加热方式的选择,对模具的材料进行选择,强度校核,粗糙度的确定,最后画出零件

图和装配图。

关键字：

粉末冶金；

压制成形；

刹车片模具

Abstract

Powdermetallurgyisabranchofmetallurgyandmaterialssciencewhoisan

undesirablematerialmeltingmetallurgymethod.Withthedevelopmentof

economy,Becauseofpowdermetallurgyprocesswithhighefficiency,stablequality,

lowcostandcanbeprocessedwithcomplicatedshapesadvantages,sothatit’s

positioninmodernindustryaremoreandmoreimportant.Accordingly,powder

metallurgydieasamodernhigh-speedmoldingtechnologyplayanincreasingly

importanttoleintheprocessequipment.Especiallyintheautomotiveindustry,anincreasing

proportionofre-application,isoneoftheimportantpillarsofthemodernautomobileindustryand

alsoisadirectionofModernindustrialdevelopment.

Thisdesignisapressdieofbrakepads.Theprojectmustbasisonpart’ssize,

density,heightandmasstodesignthemild’sstampingtype.Thenbasisonpress

machinetochoicemold’stype.ThenIchoicethebestwayforpushing-outand

boiling.NextstepareSelectingthematerialofthemoldandStrengthcheck.Thelastway,I

mustdeterminetheroughnessanddrawthepartsandassemblydrawingsfinally.

KeyWords:

Powdermetallurgy;

stampingshape;

Brakepadsmold

第1章绪论..................................................................................................................1

1.1粉末冶金概述....................................................................................................................1

1.2模具工业在现代工业国民经济中的地位........................................................................4

1.3粉末冶金模具的现状.....................................................................................................4

第2章粉末冶金模具设计的原则..............................................................................5

2.1通用粉末成形压机的选择原则.......................................................................................5

2.2压坯的选用原则...............................................................................................................5

2.3压制成形模具设计准则....................................................................................................6

第3章模具的设计和材料选择..................................................................................6

3.1压坯的要求和压制方式的选择........................................................................................6

3.1.1压制方式的选择....................................................................................................9

3.1.2顶出方式的决定..................................................................................................11

3.1.3加热板的排布方案..............................................................................................11

3.2阴模的设计.....................................................................................................................12

3.3上下模冲的设计.............................................................................................................12

3.3.1下模冲长度的设计..............................................................................................12

3.3.2上模冲的设计......................................................................................................13

3.4其它模架零件的设计.....................................................................................................13

3.5连接方式的设计.............................................................................................................14

3.5.1上下模座与固定板之间的连接..........................................................................14

3.5.2下模座与阴模固定板之间的连接......................................................................14

3.6阴模材料的选择..............................................................................................................14

3.7模冲材料的选择.............................................................................................................15

3.8模架的材料选择.............................................................................................................15

第4章强度的校核....................................................................................................16

4.1压机的选择.....................................................................................................................16

4.2模冲强度校核..................................................................................................................16

第5章模具间的余量的计算................................................................................................17

5.1下模冲的弹性变形余量.................................................................................................17