[毕业设计精品]片状垫片 冲压模毕业设计

11绪论在现代化生产中，模具工业是国民经济发展的重要基础工业之一，模具在机械、电子、航空、航天、兵器、汽车、电器、仪表、轻工、农业、机械及日常生活用品的生产中，已占有十分重要的地位，在产品竞争和产品不断更新的年代，要使产品不断降低成本并具有价格优势，采用模具成形技术来制造产品是非常重要的途径之一。现代工业发达的国家对模具工业都十分重视，模具技术水平的高低反映了一个国家制造业的能力和工业发达的程度。随着工业生产的迅速发展，模具工业在国民经济中的地位将日益提高，并在国民经济发展过程中发挥越来越大的作用。数控加工技术在模具制造的应用，它不仅提高了生产效率，降低了劳动强度，还使得一些无G8873加工的G19658G1226G2476得G2499G1209加工。G1375G3926G726G12628G2345的G13459G2011G2118加工G7114G19400G19283，G3926G7536不采用数控加工技术，劳动强度G4613G5468大G727G21748G7643G3818G3783模具形G10378不G16280G2029，G3926G7536不用数控加工，G4613G5468G19602加工G1000加工G12946度低，G17837G4613G16840G7138模具G15904业已G994数控加工G4506不G2499分。本G16786G16757是作G1038模具G16786G16757G994制造G999业G8617业生，在G8617业之G2081对G6164G4410G999业G11705G16794的一G8437G13520G2524G5627G17828用。G5053G3278和G6205展G14270G5061G6164G4410的基本G10714G16782和G999业G11705G16794，G13520G2524G17828用G6164G4410G11705G16794G3533G1871G14270G5061的技能分G7524和G16311G1927G4466G19481G19394G20076的能力，G2033G8505形成G15713技术、G12661G10714G1122一G1319的大工程G5859G16794，G3533G1871G2203G1122G6518G13046的G2031新G12946G12082和G4466G17353能力G727G3533G1871G8503G11842的G16786G16757和G11752G12362G5617G5831、G10714G16782G13864G13007G4466G19481、G1017G13911G16760G11507的G12197G4410G5589度和G1017G16892G8726G4466的工作作G20130G727G17839一G8505G16769G13463和提高G16850G20076G7053G7708G16786G16757、G17176G7021G7609G19417、G10714G16782G16757G12651、G16757G12651机使用、G7003G4395表达G12573G7053G19766的能力和技G5051G727G17902过本G8437G16786G16757能G3827G17839一G8505G9157G1849的G6496G6581G1926G2399模具G16786G16757G994制造技术。22冲裁件的结构工艺性分析工G1226G2529G12228G726G10267G10378G3455G10267G3生产批量G726大批量G3材G7021G72620钢G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3工G1226厚度G7261MMG3工G1226G12946度G726IT14级G3G19658G1226G12628图G726G3926图21G6164示G3A121A3A0A121材料选择该G1926裁G1226的材G702120钢，G1038优质碳素钢，具有良好的塑G5627、焊接G5627，G2399力加工G5627，适G2524制作G1926击G1226、紧G3278G1226，G3926G3455G10267、G3455圈G12573。G322零件结构该G1926裁G1226结构G12628G2345，制G1226需要G17839G15904G1926两个6MM的孔和一个G7053形孔，属轴对G12228图形，落G7021尺寸G10386040MM，孔的中心G994边缘的距离满足要G8726，G2499G1209G1926裁。23尺寸精度3根据G19658G1226图上G6164G7643注尺寸，工G1226要G8726不高，尺寸G12946度要G8726较低，采用普G17902G1926裁完全G2499G1209满足要G8726。结G16782G726经分G7524该制G1226G2499G1209G17839G15904G1926裁。G3由G1122制G1226G1038大批量生产，应重视模具材G7021和结构的选择，保证模具的复杂程度和模具的寿命。从表21中G7609出20钢G3抗剪强度G726280400MPA抗拉强度G726360510MPA伸G19283率G726G3G325屈服强度G726S250MPA分G7524其力G4410G5627能较好，故选择20钢材G7021。A521A6A2A4A7A8A9A10A11A12A13A14A2A4A7A8A12A13A16MPAA17A15A18A19A20A15A18A21A22A15A18A23A24A25A26A27A28A29A30A31A32A33A34A35MPAS/A36A37A38A39E/MPAA40A41MPA/A40A42MPAB/A43A44A45A46A4705A48A49A50A512002302805F2103002603803208F22031028039032180082603603304503220019000010F22034028042030190102603403004402921019800015F25037032046028152703803404802623020200020F280890340480262302000002O280400360510252502100002532044040055024280202000303604804506002230020100035400520500650203202010004042052052067018340213500454405605507001636020400043冲压工艺方案确定及模具结构的确定完成此工G1226需要G1926孔、落G7021两道工序。其加工工艺G7053G7708G2499分G1038G726G3G7053G7708一G726先G1926孔，后落G7021。G2345工序模生产。G3G7053G7708二G726G1926孔落G7021复G2524G1926G2399。复G2524模生产。G3G7053G7708三G726G1926孔落G7021级G17839G1926G2399。级G17839模生产。结G2524表31分G7524G726G3G7053G7708一G726G7053G7708一模具结构G12628G2345，投G17176少，G1000每G8437G1926裁G6164需的G1926裁力较小，G2499G1209G16311G1927G1926G2399G16786备吨位不G3827的G19394G20076。其缺点在G1122G19658G1226的G12946度G19602G1122保证，并G1000G19658G1226比较小，在第二G8437G1926孔G7114，准G11842定位不宜，容易使人受伤，生产率低。G3G7053G7708二G726只需一副模具，制G1226G12946度和生产效率都较高，G1000工G1226最小壁厚大G1122凸凹模许用最小壁厚模具强度也能满足要G8726。G1926裁G1226的内孔G994边缘的相对位置G12946度较高，模具轮廓尺寸较小板G7021的定位G12946度比G7053G7708三低，制造比G7053G7708三G12628G2345。G3G7053G7708三G726G7053G7708三只需一副模具，生产效率高，操作G7053便，G12946度也能满足要G8726，但模具轮廓尺寸较大，制造复杂，成本较高。G3A5231A53A54A55A56A57A58A59A60A61A62A63A53A54A55A56A58A59A60A61A62A63A64A65A66A67A68A69A70A71A72A73A71A74A75A71A69A76A77A78A79A80A65A81A82A83IT11A84A85A86A87IT9A88A89A90A91A92A93A88A89A94A95A96A97A98A99A100A101A102A103A100A104A91A105A100A106A93A107A94A108A95A96A97A109A110A111A112A95A97A98A99A100A101A102A103A100A104A91A105A100A106A93A107A88A89A95A96A97A98A99A100A101A102A103A100A104A91A105A100A84A113A114A115A116A117A118A119A97A114A120A86A121A122A123A124A125A126A127A128A86A129A88A130A85A101A114A120A86A121A122A123A124A127A128A131A129A88A130A84A85A101A114A120A86A121A122A123A132A127A128A133A129A134A135A88A130A136A137A138A139A140A141A142A143A144A142A145A132A126A146A84A147A97A148A149A150A151A131A152A91A114A120A135A136A137A143A144A142A153A147A97A148A149A150A151A154A155A140A135A136A137A143A144A142A156A97A88A139A157A158A159A160A161A84A162A163A97A125A126A164A155A140A135A136A137A165A166A140A141A142A138A139A102A167A159A145A111A168A102A169A159A111A168A94A170A97A132A171A172A173A159A102A169A159A174A175A100A111A168A170A176A102A169A159A111A168A94A170A97A132A171A172A173A159A116A117A177A178A146A177A178A146A84A93A179A84A177A178A177A178A146A84A93A180A181A182A183A145A156A147A123A100A84A147A97A184A185A186A155A97A182A183A187A188A189A97A190A176A119A90A191A186A155A89A97A179A171A162A151A180A182A183A156A100A119A90A191A162A163A89A97A179A171A192A193A180A145A182A183A156A100A119A194A171A195A171A146A196A97A197A171A198A97A113A199A200A116A117A201A107A202A89A107A199A200A116A117A195A171A146A196A97A150A151A154A90A191A186A155A97A203A204A94A107A97A205A100A111A168A94A85A89A145A107A199A200A116A117A195A171A146A93A97A150A151A154A90A191A162A163A97A203A204A94A107A101A205A100A111A168A84A85A89A145A107A199A200A116A117G13520G2524G1209上分G7524G726采用第二种G1926孔、落G7021复G2524G1926裁模作G1038G1926裁工艺G7053G7708。54模具总体结构设计41模具类型的选择由G1926G2399工艺分G7524G2499G11705，该模具采用复G2524G1926G2399模。复G2524模采用倒装式复G2524模，因其结构G12628G2345、又G2499G1209直接利用G2399力机的打杆装置G17839G15904推G1226、卸G7021G2499靠、便G1122操作、并G1038机械化出G1226提供了有利G7477G1226，G6164G1209模具G12879G3423G1038倒装式复G2524模。G342定位方式的选择G1038保证G1926裁出G3818形完G6984的G2524格G19658G1226，G8623G3395在模具中应该有G8503G11842的位置，G8503G11842位置是G1393靠定位G19658G1226来保证的。因G1038该模具采用的是G7477G7021，控制G7477G7021的G17877G17839G7053G2533采用G4560G7021G19156。控制G7477G7021的G17877G17839G8505距采用G6389G7021G19156。G343卸料、出件方式的选择因G1038工G1226G7021厚1MM，相对较G15192，卸G7021力不大，由此G2499G11705卸G7021、出G1226G7053式的选择G2499采用G5389G5627卸G7021装置卸G7021。G344标准模架和导向零件的选择模G7562是G6984副模具的G20604G7562，模具的全G18108G19658G1226都G3278定其上，并G6227受G1926G2399过程的全G18108G17745G14667。上G991模G19400的G12946G11842位置，由G4560G7621、G4560G3883的G4560G2533G4466现。G3G7053G7708一G726采用对G16294G4560G7621模G7562。常用G1122G8190G2533G17877G7021级G17839模G6122G13449G2533G17877G7021的落G7021模、复G2524模。G3G7053G7708二G726采用后G1403G4560G7621模G7562。由G1122G2081G19766和G5050、G2503不受G19492制，G17877G7021和操作比较G7053便。因G1038G4560G7621G4445装在后G1403，操作G13785G2499G1209G11487G16277G7477G7021在模具中的G17877G17839动作。但是不能使用G9026动模G7576。G7053G7708三G726G3247G4560G7621模G7562。具有G4560G2533平G12295、G4560G2533准G11842G2499靠、G2030G5627好G12573优点。G7053G7708G3247G726中G19400G4560G7621模G7562。G4560G7621G4445装在模具的对G12228G13459上，G4560G2533平G12295、准G11842。只能一个G7053G2533G17877G7021。G3926图416G3G3G3G3AG3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3BG3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3CG3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3DG3G3A20641A207A208A209A210A207A208A209A210根据G1209上G7053G7708比较并结G2524模具结构形式和G17877G7021G7053式，G1038提高模具寿命和工G1226质量，采用后G1403G4560G7621模G7562，操作G13785G2499G1209G11487G16277G7477G7021在模具中的G17877G17839动作。由G1122G2081G19766和G5050、G2503不受G19492制，G17877G7021和操作比较G7053便，并能满足工G1226成G3423的要G8726。G2375G7053G7708二最G1351，采用后G1403G4560G7621模G7562。75模具设计工艺计算51排样、条料宽度及步距511排样方法G6502G7691G2524G10714G994G2554不但G5445G2721材G7021的经济利用，还G5445G2721制G1226的质量、模具的寿命、制G1226的生产率和模具的成本G12573技术、经济G6363G7643。G3根据材G7021经济利用程度，G6502G7691G7053G8873G2499G1209分G1038有G5235G7021、少G5235G7021和无G5235G7021G6502G7691三种，根据制G1226在G7477G7021上的G5079置形式，G6502G7691又G2499G1209分G1038直G6502、G7024G6502、对G6502、G9163G2524G6502、G3822G6502G12573G3822重形式。G3采用少、无G5235G7021G6502G7691G8873，材G7021利用率高，不但有利G1122一G8437G1926程G14731得G3822个制G1226，G13792G1000G2499G1209G12628化模具结构，降低G1926裁力，但是，因G7477G7021本G17535的G1856G5058G1209及G7477G7021G4560G2533G994定位G6164产生的G16835G5058的G5445G2721，G6164G1209模具G1926裁G1226的G1856G5058G12573级较低。G2528G7114，因模具G2345G19766受力G708G2345边G2011断G7114G709，不但G1262加G2107模具的G11964G6451，降低模具的寿命，G13792G1000也直接G5445G2721G2052G1926裁G1226的断G19766质量。G3根据G16786G16757的G19658G1226的形G10378、厚度、材G7021G12573G7053G19766的全G19766G13783G15397，G6502G7691G7053G8873采用有G5235G7021直G6502G8873，直G6502G8873G2499分G1038两种，G3926图51、图52。G3A21151A212A2138A21152A212A213512搭边值的确定G6502G7691G7114G19658G1226之G19400G1209及G19658G1226G994G7477G7021G1403边之G19400G11053G991的工艺G1325G7021，G12228G1038G6657边。G6657边的作用是G15929G1619定位G16835G5058，保G6357G7477G7021有一定的G2030度，G1209保证G19658G1226质量和G17877G7021G7053便。G6657边过大，G9022G17165材G7021。G6657边过小，G1926裁G7114容易G13740G7366G6122G15999拉断，不仅G1262G3698大G1926G1226G8623G2062，有G7114还G1262拉G1849凸、凹模G19400G19565中G6451G3363模具G2007G2487，降低模具寿命G6122G5445G2721G17877G7021工作。G6657边G1552G17902常由经G20576G11842定，表51G6164G2027G6657边G1552G1038普G17902G1926裁G7114经G20576数据之一。A21451A215A216A217A218A217A219A220A221A220A221A222MMA223A224A225A226A227A228A229A230A231A225A232A233A231A225A234A235A236A234A235A237A238A231A225AA1AA1AA1AA11151521532A239A24012215252352532A239A24023252325435A239A240343253535443A239A2404543546554根据制G1226厚度G994制G1226的G6502G7691G7053G8873G7609表51，G6657边G1552AG10382MM，A1G103815MM。513条料宽度的计算G6502G7691G7053式和G6657边G1552G11842定G1209后，G7477G7021的G4497度也G4613G2499G1209G16786G16757出。G16757G12651G7477G7021G4497度有三种G5785G1929需要G13783G15397G726G3G7081G709有G1403G2399装置G7114G7477G7021的G4497度。G39G7082G709无G1403G2399装置G7114G7477G7021的G4497度。G3G7083G709有定距G1403G2007G7114G7477G7021的G4497度。G3有G1403G2399装置的模具，能使G7477G7021G3999G13468G8851着G4560G7021板G17877G17839。G3G3有G1403G2399G7477G7021G4497度G3926图5302）（ADBG3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G1856式G70851G709式中G726G7477G7021G4497度上G1571G5058G10380，G991G1571G5058G1038。G3DG1926裁G1226的最大尺寸。G3AG1403G19766G6657边G1552。G3A24153A242A243A244A245A246A243A244本G16786G16757采用的是无G1403G2399装置的模具G3926图54A24754A248A243A244A245A246A243A244G7477G7021是由板G7021剪裁G991G7021G13792得，G1038保证G17877G7021G20046利，G16280定其上G1571G5058G1038G19658，G991G1571G5058G1038G17139G1552。G3G7477G7021G4497度G1856式G72610BD2AG440C10A249G1856式G70852G709G8505距G726G36G3G47G14G68A250G1856式G70853G709G4560尺距离G726G86G37G14G3G70A250G1856式G70854G709式中G726G3DG252G1038G1926裁G1226G3414直G1122G17877G7021G7053G2533的尺寸G726G3G3G3LG252G19658G1226边G19283G3AG252G1038G1403G6657边，MM2AG3G3G3G3G3G252G1038G7477G7021G4497度的G2345G2533G708G17139G2533G709G1571G5058，G16277表52G726G3C1G252G1038G4560尺G1122G7477G7021G4497度之G19400的G2345G19766小G19400G19565，其G1552G16277表53。A25152A252A253A254A255A44A0A253A254A44A0A16MMA17A121A1B/MMA2A3A4A5T11223350A154500405070950A15410005060810A653A50A7A8A9A10A11A7A8A9A10A55A12A13MMA14A155A15A157A18A19A20A21A22C1A71A18A19A20A21A22C1A23A24A25A26B100A93A27100200200300100A93A27100A93A28A29A24A30A26T0510505158120511582305115834051158G7609表52G2499得G7477G7021G4497度G1571G5058的G991G1571G5058G708G709G1038MM150G7609表53G17877G7021最小G19400G19565G2499G11705G726C105根据G70852G709得G726B60220505005G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3635005MM11根据G70853G709得G726A4015415MM根据G70854G709得G726S4351545MM514材料利用率在G1926G2399生产中，G6502G7691是G2554G2524G10714直接G5445G2721G2052材G7021的经济利用。G1926G2399生产的成本中，G8623G3395材G7021G17165用占60G1209上，G6502G7691的G11458的G4613是G2524G10714利用材G7021。G16792价G6502G7691经济G5627，G2524G10714G5627的G6363G7643是材G7021的利用率。材G7021利用率G17902常G1209一个G8505距内制G1226的G4466G19481G19766G12227G994G6164用G8623G3395G19766G12227的G11346分率表示G7261G708NA1/BAG709100G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G3G1856式G70855G709式中G726A1G252G1926裁G19766G12227G708MMG709G3G3G3G3BG252G7477G7021G4497度G708MMG709G3G3G3G3G3AG252G17877G7021G8505距G708MMG709NG252一个G8505距内G1926G1226数根据图51，式55G16757G12651得G726G3G3G3G3G3G31G7081188232/635415G7091007143根据图52，式55G16757G12651得G726G3G3G3G31G7081188232/435615G7091007036由上G17860G16757G12651G2499G11705G726G6502G769151的材G7021利用率大G1122G6502G769152的材G7021利用率，能有效降低成本。故G6502G769151最优。126计算冲压力与压力机的初选61计算冲裁力的公式G16757G12651G1926裁力是G1038了选择G2524适的G2399力机，G16786G16757模具和G7828G20576模具的强度，G2399力机的吨位G5529G20047大G1122G6164G16757G12651的G1926裁力，G1209适宜G1926裁的要G8726，普G17902平G2007G1926裁模，其G1926裁力PF一G14336G2499G1209G6365G991式G16757G12651G726TLKFPPG1856式G70861G709式中G726材G7021抗剪强度MPAG727LG1926裁G2620边G5647G19283G708MMG709G727T材G7021厚度G708MMG709G727G13007数PK是G13783G15397G2052G1926裁模G2007G2487的G11964G6451，凸模G994凹模G19400G19565之G8886动G708数G1552的G2476化G6122分G5079不G3355G709，G9082G9381G5785G1929，材G7021力G4410G5627能G994厚度G1856G5058的G2476化G12573因数G13792G16786置的G4445全G13007数PK，一G14336G2474PK13。根据常用G18341属G1926G2399材G7021的力G4410G5627能G7609表61，20钢抗剪强度G1038280400MPA,G2474350MPA。A3161A32A33A34A35A36A37A38A39A40A41A42A43A45A32A33A35A36A37A38A39A40A42A43A46MPAA47A48A49A51A52A53A54A48A49A56A57A58A59A60A61A58A62A60A61A63A64A65A66A67A60A61A68A69A70A72A73Q195A74A75A76260A77320320A7740028A7733200Q235A74A75A76310A77380380A7747021A7725240Q275A74A75A76400A77500500A7762015A7719280A78A79A80A81A82A83A8408FA85A75A76220A77310280A773903218008A85A75A76260A77360330A774503220010A85A75A76260A77340300A774402921020A85A75A76280A77400360A774102525045A85A75A76440A77560550A777001636065MNA85A75A76600750124001362总冲裁力、推件力、卸料力和总冲压力由G1122G1926裁模具采用G5389G2399卸G7021装置和G14270G9994落G7021G7053式。G5647的G1926裁力包括G726G7081G709G5647G1926G2399力G7082G709G5647G1926裁力G7083G709卸G7021力G7084G709推G1226力621总冲裁力PFG1926裁G5647G2620G19283G1038G7261L26024023221523146MM68331根据G70861G709得G726PF9144150A8662A87A88A89A88A89A88A89A90A90A91A92A89A94A95A92A89A96A97A95A92A98A99T/MMKXKTKDA10001A10101A10205A10105A10225A10125A10265A101650065A10200750045A1020055004A102005003A102004002A102003010063005500450025014008006005003A103A104A103A105A106A107A108A104A109A1080025A102008002A102006003A102007003A102009A110A111A112A113A114A115A116A117A118A119A120A116A122A123A124A125A126A119A127A122A123A124A128A126A129622卸料力QFPXQFKFG1856式G70862G709G7609表62得G726050XK14根据G70862G709得G7269144150050QF545727623推件力1QFPTQFNKF1G1856式G70863G709G7609表61得G726TK0550根据G70863G709得G7263002989144150055011QF624顶件力FDPDDFKFG1856式G70864G709G7609表61得G726060DK根据G70864G709得G726QF05486499114150060625总冲压力FDQQPFFFFF1G1856式G70865G709150914754683009055175815626压力机的初选根据G5647的G1926G2399力表63，G2033选G2399力机G1038G726开式G2499倾G2399力机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模具压力中心与计算模具G2399力中心是G6363G1926G2399G7114诸G1926G2399力G2524力的作用点位置。G1038了G11842保G2399力机和模具G8503常工作，应使模具的G2399力中心G994G2399力机G9381块的中心相重G2524，G2554G2029，G1262使G1926模和G2399力机G9381块产生G1571心G17745G14667，使G9381块和G4560轨之G19400产生过大的摩擦，模具G4560G2533G19658G1226加速G11964G6451，降低模具和G2399力机的使用寿命。模具的G2399力中心，G2499G6365G1209G991原G2029来G11842定G726G7081G709对G12228G19658G1226的G2345个G1926裁G1226，G1926裁的G2399力中心G1038G1926裁G1226的几何中心。G7082G709工G1226形G10378相G2528G1000分G5079对G12228G7114，G1926裁的G2399力中心G994G19658G1226的对G12228中心重G2524。G7083G709形G10378复杂的G19658G1226、G3822孔G1926模、级G17839模的G2399力中心G2499用G16311G7524G16757G12651G8873G8726出G1926模G2399力中心。G3NNNOLLLXLXLXLX212211/G1856式G70871G709NNNOLLLYLYLYLY212211/G1856式G70872G709G19658G1226属G1122G3822形孔G1926裁、G1926G2399模G2399力中心G2499G1209用G16311G7524G16757G12651G8873G8726G1926模G2399力中心。G991G19766用G16311G7524G8873G11842定G994G16757G12651模具的G2399力中心G3926图71G726G3G3G3G3G3G3G3G3G3G3A21271A213A214A215A216A213A214A217由G1122图形关G1122Y轴对G12228，其G2399力中心一定在Y轴上故Y00G3NNNNLLLXLXLXLX212211/G3G3G3G3G3G3G3G7081259420200341884341884G709G7089420018841884G709G3G3G3G3G3G3G3G31946MM故G8726得模具G2399力中心的坐G7643G155204619，在模G7576投G5445范围内，G16786G16757G2524G10714。178冲裁间隙81冲裁间隙ZG1926裁G19400G19565G7114G6363G1926裁模中凹模G2007G2487G8190G2533尺寸ADG994凸模G2007G2487G8190G2533尺寸TD的G5058G1552G3926图81，是G16786G16757模具的重要工艺参数。G3G3A21881A219A220A221A222A219A220A221A22282冲裁间隙分析G3G3G3G3G7081G709G19400G19565对G1926裁G1226尺寸G12946度的G5445G2721G1926裁G1226的尺寸G12946度是G6363G1926裁G1226的G4466G19481尺寸G994基本尺寸的G5058G1552，G5058G1552越小，G2029G12946度越高，G17837个G5058G1552包括两G7053G19766的G1571G5058，一是G1926裁G1226相对G1122凸模G6122凹模的G1571G5058，二是模具本G17535的制造G1571G5058。G7082G709G19400G19565对模具寿命的G5445G2721G3模具寿命受各种因素的G13520G2524G5445G2721，G19400G19565是也许模具寿命诸因数中最主要的因数之一，G1926裁过程中，凸模G994G15999G1926的孔之G19400，凹模G994落G7021G1226之G19400G3355有摩擦，G13792G1000G19400G19565越小，模具作用的G2399应力越大，摩擦也越G1017重，G6164G1209过小的G19400G19565对模具寿命极G1038不利。G3G3G7083G709G19400G19565对G1926裁工艺力的G5445G2721G3随着G19400G19565的G3698大，材G7021G6164受的拉应力G3698大，材G7021容易断裂分离，因此G1926裁力减小。G17902常G1926裁力的降低并不显著，当G2345边G19400G19565在材G7021厚度的520G5050G2503G7114，G1926裁力的降低不超过510。G19400G19565对卸G7021力推G7021力的G5445G2721比较显著。G19400G19565G3698大18后，从凸模里卸G7021和从凹模里推G7021都省力当当G2345边G19400G19565达G2052材G7021厚度的1525G5050G2503G7114的卸G7021力几乎G1038G19658。但G19400G19565继续G3698大，因G1038G8623G2062G3698大，又将引起卸G7021力、顶G1226力迅速G3698大。G3G7084G709G19400G19565G1552的G11842定G3由G1209上分G7524G2499G16277，凸、凹模G19400G19565对G1926裁G1226质量、G1926裁工艺力、模具寿命都有G5468大的G5445G2721。因此，G16786G16757模具G7114一定要选择G2524G10714的G19400G19565，G1209保证G1926裁G1226的断G19766质量、尺寸G12946度满足产品的要G8726，G13783G15397G2052模具在使用过程中的G11964G6451使G19400G19565G3698大，在制造新模具G7114要采用最小G2524G10714G19400G19565G1552，根据G19400G19565表81G7609得G726材G702120钢的最小双G19766G19400G19565G1552G1038010MMG727最大双G19766G19400G19565G1552G1038014MM。A22381A224A225A226A227A228A229A230A231A224A225A227A228A229A2302CA232MMA233G3A234A235A236A23708A23810A23820A23835A23809MNA238Q23516MN40A2385065MNMIN2CMAX2CMIN2CMAX2CMIN2CMAX2CMIN2CMAX2CA239A24005A241A239A242A24305060708091012151752021252753035404555606580004000480064007200920100012601320220024602600260040004600540061007200940108000600072009201040126014001800240032003600380050005600640074008801000128014400040004800640072009001000