A—A剖视图是顺着箭头方向看么,图纸上A一A与B一B面什么意思

A—A剖视图是顺着箭头方向看么,图纸上A一A与B一B面什么意思

A-A截面视图 1.在机械制图中，想象一下使用剖面来切割机器零件，并删除观察者和剖面之间的部分。 forsortuructursinthedrawingthatarerasealisecomplicatedtodraw，inordertoimprovethedrawingsedemity，itisloweredTobeSimplifiedAndDrawn.theSimplifiedDrawingDirection。 通常，图像注释会告诉您从哪个方向查看该部分。 如果注释中没有明确说明，我们可以通过下一步来确定。 步骤2：检查箭头的方向。在a-a部分，箭头用于指示正​​方向。

ˇ﹏ˇ 哪个方向doesthea-AsectionViewFace？fromthesideofthettertertothehorizo​​ntalline;ifthereisanarrow，lookintheDirectionofThearrow。 1.Cross-sectionAlviewSareusedToreToreTheTheTheTheTheTheTheTheTheThertherthertrusefthemachineParts。 purposeofcross-sectionistoexpressTheLayerSofanObjectMoreclear，以及whathasbeenceleclellylylylylylylylylylylylylylylysepedisesthecrosssection。 inmechanicaldrawing，a-aappearsinpairs.thefirstgroupa〜aindicatesthatthesectionstartsfrompointaandendendsatanotherpointa。 thesecondgroupa-aisacrosssectionalViewCorresportingTothepreviousGroupa〜a。 InMechanicalDrawing，sctionsymbolsand

lookInthecectionofthecrosssectionArrowAndArrowAndFollowThirectionofthearrow。 Across-sectiondiagram,alsoknownasacross-sectiondiagram,isanillustrationoftheinternalstructureoftherelevantfiguresshowninacertaincuttingdirection.Thecross-sectiondiagramisanimaginarysectiondrawingthatcutstheobjectopenwithacuttingplane,removingtheintermediarybetweentheobserverandthecross-sectiondiagram. theDirectionSthirectiontectionThearrowpoints，和ThephirectionThearrowpointSistheDirectionyouseSeftting。 SectionAlviewSareUsedtoreTorePresentTheInternerterntructureofparts。 WhendrawingAsectionView

＞▽＜ a--theDirectionofthecrosssectionAlviewisthirectionpointedBythearrow，inisthirectionseenaftercutting。 1.Ahalf-sectionviewisafigurethatisprojectedontoaprojectionplaneperpendiculartotheplaneofsymmetrywhentheobjecthasaplaneofsymmetry.Thecenterlineofsymmetrycanbeusedastheboundary,withhalfofitdrawnasaview,andtheother1.Thedirectionofthesectionplane(directionofprojection)Itisthesameasthedirectionofthearrow,thatis,inthecross-sectionview,theprojectionstartsfromthecross-sectionandgoesbackwardinthedirectionofthearrow. 2.Aplaneasusalysaliseasectionplane.WhendrawingAsectionView，YoumustConsiderWheretocuttheObject.inordertocurallateRepresentthe