试棒加工操作指导书

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1、试棒加工操作指导书WorkingInstructionforTestCouponMachining程序编号ProcedureN.O程序版本号Procedureedition参考文件Reference参考文件版本号Referenceedition001.0目的Purpose指导操作工使用数控机床正确加工试棒，规范试棒加工的操作方法。Thisprocedureisestablishedtoprovidethetestcouponrequirementsandcautionstotheoperatorwhilema

2、chiningthetestcoupon,2.0范围Scope本规范适用于所有试棒加工。Thisprocedureisapplicabletothemachiningofallkindsoftestcouponbeforetesting.3.0职责Responsibility按照本程序操作是试样加工操作人员的职责。It’stheresponsibilityoftheoperatortoensurethecompliancetothisprocedure.4.0参考规范Referencestandard：AST

3、ME8/E8M金属材料拉伸试验方法TensiontestingmethodofmetallicmaterialsASTMB557锻造与铸造铝和镁合金产品拉伸试验的标准检测方法TestMethodsforTensionTestingWroughtandCastAluminum-andMagnesium-AlloyProducts5.0设备Equipment数控机床：按照ASTME8/E8M、ASTMB557规范中尺寸要求进行加工。CNCmachine:beingcapabletomachinethetestco

4、uponinaccordancewithASTME8/E8MandASTMB557.6.0试棒Testcoupon试棒加工时要核对试棒数量、标识、批次、材质等信息是否与来料流程卡一致，确认无误后按要求进行加工。6.1试棒尺寸——应按试验材料产品技术条件规定，采用实际全尺寸或经机械加工的试棒。SpecimenSize—Testspecimensshallbeeithersubstantiallyfullsizeormachined,asprescribedintheproductSpecificationsfo

5、rthematerialbeingtested.6.2钢件标准试棒与小尺寸试棒加工尺寸如图1所示.6.2.1，直径为12.5mm圆柱试棒普遍地应用于铸造和锻造金属材料试验。Thestandard12.5-mmdiameterroundtestspecimenisusedquitegenerallyfortestingmetallicmaterials,bothcastandwrought.6.2.2当试验材料不能制备标准试棒时可以使用与标准试棒成比例的小试棒。采用这种任何小尺寸试棒时，保证测量伸长的标距为试棒

6、直径的4倍。Small-sizespecimensproportionaltothestandardspecimenmaybeusedwhenitisnecessarytotestmaterialfromwhichthestandardspecimenorspecimenscannotbeprepared.Inanysuchsmall-sizespecimenitisimportantthatthegagelengthformeasurementofelongationbefourtimesthediamet

7、erofthespecimen.6.2.3试棒标距以外的端部形状，应与材料和试验机头部或夹具相配合，以便使力能延轴向施加。Theshapeoftheendsofthespecimenoutsideofthegagelengthshallbesuitabletothematerialandofashapetofittheholdersorgripsofthetestingmachinesothattheforcesmaybeappliedaxially.名义直径NominalDimeter尺寸/英尺Dimens

8、ions/mm(in).标准样件StandSpecimen与标准成比例的小尺寸样件Small-SizeSpecimensProportionaltoStandar12.5(0.500)9.0(0.350)6.0(0.250)4.0(0.160)G—计量长度Gagelength50.0±0.1(2.000±0.005)36.0±0.1(1.400±0.005)25.0±0.1(1.000±0.005)