ASTM B820-2009 铜和铜合金带材可成形性测定用弯曲试验的标准试验方法

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【英文标准名称】:StandardTestMethodforBendTestforDeterminingtheFormabilityofCopperandCopperAlloyStrip
【原文标准名称】:铜和铜合金带材可成形性测定用弯曲试验的标准试验方法
【标准号】:ASTMB820-2009
【标准状态】:现行
【国别】:
【发布日期】:2009
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:B05.06
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:弯曲半径;弯曲试验;铜和铜合金带材;可成形性试验;断裂;纵向弯曲;心轴;横向弯曲;弯曲测试-金属材料;铜合金;铜弹性试验;断裂-金属材料;可成形性测试;荷载试验-金属/合金;弹簧
【英文主题词】:bendradius;bendtest;copperandcopperalloystrip;formabilitytest;fracture;longitudinalbend;mandrel;transversebend;Bendtesting--metallicmaterials;Copperalloy;Copperspringtest;Cracking--metallicmaterials;Formabilitytesting;Loading
【摘要】:Thisbendtestprovidesinformationastotheformabilityortheabilityofcopperandcopperalloystriptoresistcrackingwhenbeingformed.Thistestmethodcanbeusedasaqualitycontroltooltodetermineifmaterialwillformtoagivenradius.Thistestmethodisalsousefulinresearchanddevelopmenttoprovidedataforuseinselectingaspringmaterialthatwillsafelyformtothegeometryofagivenpart.Theresultsaresuitablefordirectapplicationindesignandmanufacturing,onlywhenallfactorssuchasthegeometryofthepart,punchanddiedesign,lubrication,stampingspeed,andothermaterialpropertiesareknown.1.1Thistestmethoddescribesthetechniqueofbendtestingcopperandcopperalloystripsamplestodetermineproductformabilityortheabilitytoresistcrackingwhenformingabendaroundaspecificradius.Thecriterionforfailureistheoccurrenceofcracksontheouterradiusofcurvature(convex).1.2Thisbendtestislimitedtostripfrom0.003toandincluding0.031in.thick.(0.076toandincluding0.79mm).1.3Thesizeoftheformingradiiusedinthistestshallbe0.005toandincluding0.250in.(0.127toandincluding6.35mm).1.4Units8212;Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:H62
【国际标准分类号】:77_150_30
【页数】:3P.;A4
【正文语种】: