多結(jié)構(gòu)要素非軸對(duì)稱深盒形件沖壓成形工藝研究和應(yīng)用.pdf

1、華南理工大學(xué)碩士學(xué)位論文多結(jié)構(gòu)要素非軸對(duì)稱深盒形件沖壓成形工藝研究和應(yīng)用姓名：楊何發(fā)申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：機(jī)械工程指導(dǎo)教師：夏琴香梁振鋒20061128Duringthelasttenyears，theindustryofautomobilehasbeendevelopingatahighspeedinChinaThemanufacturingofitspartsbecomesgrowingup舔wellStampingisakind

2、ofplasticformingprocessinwhichapartisproducedbymeal培oftheplasticformingofthemamrialundertheactionofadieItiswidelyusedinvariousfieldsofthemetalworkinginditeanditplaysacrucialroleintheindustryformanufacturingautomobilesSot

3、hedevelopmentoftheindustryformanufacturingautomobilesreqmresstampinghavingnewdevelopmentThearticlehasintroducedthedevelopmentofthestampingformingtechnologythecharacteristicsofstampingandtheprinciplesofstampingatfirstThed

4、eepdrawingisthemaintechnologyprocessofthestampingformingitsformingprinciples，diesdesignanddefectsreasonsaremorecomplicatedthantheotherstampingformingThearticleappliesaconcremexamplethatisade印nonsymmetricboxpartstoexplain

5、theformulatingstampingplantherelationforcesconsiderationandthefirstd朋pdrawingdiedesignandthelastdeepdrawingdiedesignofthespedalpartInaddition，ithascalculatedtherelationforcesoftheotherstampingformingproceduresThesecond，t

6、hearticlehasresearchedstampingonmanykindsofstructurekeyelementsde印nonsymmetricboxpartstheroundnessradiusofdietheroundnessradiusofpunchtheholderforce，theclearancebetweenpunchanddiehowtodeterminethequali哆ofthepartsItisimpo

7、rtantthatdiscussthereasonsofthemaindefectionsegwrinkleandcrackorfractureofdeepdrawing，researchcontrollingsomeprocedureparameterstoprotectqualityproblemAtlastthearticleappliestheconcremdesignandmanufactureofthedeepdrawing

8、todiscusstheproblemsontestingprocedureItanalyzedthereasonsofappearedwrinkleandcrackorfractureinthedeepdrawinggavetheimprovedmeasures，andaccordingtoitweproducedthenodefectionsandreachingstandardproductionsKeyWords：nonsymm