注塑模具和设计指导

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1、...外國工程師傳授的design資料，供大家享受。bbs.icax.cn9s0l#ffb$ZK[HInjectionMoldingDesignGuidelinesCAD/CAM/CAE综合资讯网站论坛i3xxIoM注塑模具设计指导0MBbt5Lzbbs.icax.cnwww.iCAx.cnN]u{1mMuchhasbeenwrittenregardingdesignguidelinesforinjectionmolding.Yet,thedesignguidelinescanbes

2、ummedupinjustafewdesignrules.已经有许多关于设计注塑模具的书了,但是设计准则可以被概括以下几点:U)J9L7^CAD,CAE,CAM,ICAX,idesign,模具,设计,招聘,培训iCAx开思论坛9m$

3、h9VAhUseuniformwallthicknessesthroughoutthepart.Thiswillminimizesinking,warping,residualstresses,andimprovemoldfillandcycletimes.1.零件整体壁厚保

4、持均匀.这样可以最小化缩坑,翘曲,强度减小,模具填充和循环时间.@'O"mqp1FzCAD,CAE,CAM,ICAX,idesign,模具,设计,招聘,培训4Ln
?dH%`3dI,}Usegenerousradiusatallcorners.Theinsidecornerradiusshouldbeaminimumofonematerialthickness.2.在转角处大量采用圆角.圆角内部最小半径为一个壁厚.({r8]r"Y5b$JYwww.iCAx.cn9J1S,n;WT    u
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5、x(~5Vbbs.icax.cnUsetheleastthicknesscompliantwiththeprocess,material,orproductdesignrequirements.Usingtheleastwallthicknessfortheprocessensuresrapidcooling,shortcycletimes,andminimumshotweight.Alltheseresultintheleastpossiblepartcost.www.iCAx.cn3[G+d^&W3.根据

6、工艺,材料,产品设计需求.采用最小壁厚.最小壁厚的应用可以确保快速的冷却,短循环时间和减少喷射重量.所有这些最终达到最小的产品成本.2u4H8D(t:PV]Z"peCAD,CAE,CAM,ICAX,idesign,模具,设计,招聘,培训Designpartstofacilitateeasywithdrawalfromthemoldbyprovidingdraft(taper)inthedirectionofmoldopeningorclosing.CAD/CAM/CAE综合资讯网站论坛4l6Z7v.V2jQ0G

7、%~4.在模具开合方向设置拔模角便于设备的运做.*P:r(Z`    yUseribsorgussetstoimprovepartstiffnessinbending.Thisavoidstheuseofthicksectiontoachievethesame,therebysavingonpartweight,materialcosts,andcycletimecosts.5.为了提高产品强度抵抗弯曲应该加筋或肋.避免用厚的结构达到同样的效果,以此减少了产品重量,材料成本,循环时间成本.Theuseofribsi

8、CAx开思论坛8o.y+p-p    t*C筋的应用J9x4LbP#Hbbbs.icax.cnRibsincreasethebendingstiffnessofapart.Withoutribs,thethicknesshastobeincreasedtoincreasethebendingstiffness.Addingribsincreasesthemomentofinertia,whichincreasesthebendingstiffness.Bendingstiffness=E(Young'sMod

9、ulus)xI(MomentofInertia)如果没有筋来增加强度,厚度就必须增加(费话一堆).加强筋增加了转动惯量!y%V-`&dEg{Zswww.iCAx.cnl)OeCVCTheribthicknessshouldbelessthanthewallthickness-tokeepsinkingtoaminimum.T