形位精度等級(jí)和加工面加工精度等級(jí)、方案

1、附錄二形位精度公差值公差等級(jí)主參數(shù) L/mm12公差等級(jí)主參數(shù) L/mm123456789101112公差值/m100.20.40.81.223581220306010160.250.511.52.546101525408016250.30.61.223581220305010025400.40.81.52.546101525406012040630.5123581220305080150631000.61.22.54610152540601002001001600.81.53581220305080120250160250124610152540601001503002504001.22.5

2、5812203050801202004004006301.536101525406010015025050063010002481220305080120200300600100016002.55101525406010015025040080016002500361220305080120200300500100025004000481525406010015025040060012004000630051020305080120200300500800150063001000061225406010015025040060010002022附表2-2圓度、圓柱度公差值公差等級(jí)公差等級(jí)主參數(shù)

3、 L/mm0123456789101112公差值/m30.10.20.30.50.81.22346101425360.10.20.40.611.52.54581218306100.120.250.40.611.52.546915223610180.150.250.50.81.223571118274318300.20.30.611.52.54681321335230500.250.40.611.52.547111625396250800.30.50.81.223581319304674801200.40.611.52.5461015223554871201800.611.223.5581218

4、2540631001802500.81.2234.571014202946721152503151.01.62.54681216233252811303154001.2235791318253657891404005001.52.546810152027406397155公差等級(jí)附表2-3平行度、垂直度、傾斜度公差值公差等級(jí)主參數(shù) L/mm123456789101112公差值/m100.40.81.5358122030508012010160.51246101525406010015016250.61.22.558122030508012020025400.81.536101525406010

5、0150250406312481220305080120200300631001.22.5510152540601001502504001001601.5361220305080120200300500160250248152540601001502504006002504002.551020305080120200300500800400630361225406010015025040060010006301000481530508012020030050080012001000160051020406010015025040060010001500160025006122550801202

6、003005008001200202225004000815306010015025040060010001500250040006300102040801202003005008001200202230006300100001225501001502504006001000150025004000附表2-4同軸度、對(duì)稱度、圓跳動(dòng)和全跳動(dòng)公差值公差等級(jí)公差等級(jí)主參數(shù) L/mm123456789101112公差值/m10.40.611.52.5461015254060130.40.611.52.54610204060120360.50.81.22358122550801506100.611.52

7、.5461015306010020010180.81.2235812204080120250183011.52.5461015255010015030030501.2235812203060120200400501201.52.54610152540801502505001202502358122030501002003006002505002.546101525406012025040080050080035812203050801503005001000800125046101525406010020040060012001250202258122030508012025050080015

8、002022315061015254060100150300600100020223150500081220305080120200400800120025005000800010152540601001502505001000150030008000100001220305080120200300600120020224000附錄三機(jī)械加工的經(jīng)濟(jì)精度附表3-1各種加工方法可能到達(dá)的公差等級(jí)加工方法公差等級(jí) IT01012345678910 11 12 13 14 15 16研磨珩磨內(nèi)外圓磨削平面磨削金剛石車削金剛石鏜削拉削鉸孔車削鏜削銑削刨削、插削鉆孔滾壓、擠壓沖壓附表3-2外圓柱面加工的經(jīng)

9、濟(jì)精度車削車削磨削/mm粗車次加工精車一次加工研磨粗磨精磨滾壓131212111097976510976鑄孔或沖孔后鑄孔或沖孔后精擴(kuò)IT/m13120120604020920964402096361601608048251225128548251286102002001005830153015106583015101018240240120703518351812870351812183028028014084452145211498445211430506203403401701005025502517111005025175080740400400200120603060302013120

10、6030208012087046046023014070357035231514070352312018010005305302601608040804027181608040271802601150600600300185804790473020185904730260360135068068034021510054100543522215100543536050015507607603802501206212062402525012062403-3孔加工的經(jīng)濟(jì)精度鉆及擴(kuò)孔鉆擴(kuò)孔鉸孔寸/mm無(wú)鉆模有鉆模粗?jǐn)U粗?jǐn)U或鉆孔后一次半精鉸擴(kuò)孔精鉸細(xì)鉸IT/m1211121112121110111098

11、761360603680808048251813861010010010058302216910182401202401207012070352719111830280140280140841408445382330503403403403401701001701005039275080460400400200120200120604630801204604602301402801407054351201802601608063401802603001859073452603603402151008450360500拉孔鏜孔磨孔研直徑根本尺寸/mm粗拉孔后或鉆孔后精拉孔粗半精精細(xì)粗精磨9871

12、211109876987613366101018352719240120703527191135271911183045332328014084453323134533231330505039273401701005039271550392715508060463040020012060463018604630188012070543546023014070543521705435211201808063405302601608063408063402418026060030018590734590734527260360680340215100845010084503036050076038

13、02501209560120956035刨削和圓柱銑刀及套式面銑刀銑削拉削磨削根本尺寸/mm刨削和圓柱銑刀及套式面銑刀銑削拉削磨削根本尺寸/mm粗半精車加工精細(xì)粗拉鑄外表精拉一次加工粗 精細(xì) IT/m13 1211 12111097611 109769797651097101843024012024012070351812 35183518128703518183052028014028014084452114140844521144521452114984452130506203401703401701005025171701005025175025502517111005025508070

14、04002022002001206030202001206030206030603020131206030801208704602304602301407035232301407035237035703523151407035120180100053026053026016080402726016080402780408040271816080401802601150600300600300185904730300185904730904790473020185904726036013506803406803402151005435 100541005435222151005436050038

15、07603802501206240 1206212062402525012062表內(nèi)資料適用于尺寸1m，構(gòu)造剛性好的零件加工：用光滑的外表作為定位基準(zhǔn)和測(cè)量基準(zhǔn)，套式面銑刀銑削的加工精度在一樣的條件下大體上比圓柱銑刀銑削高一級(jí)。細(xì)銑僅用于套式面銑刀銑削。附表3-5端面加工的經(jīng)濟(jì)精度單位：mm直徑直徑加工方法5050120120260260500車削粗0.150.200.25040精0.070.100.130.20一般0.030.040.050.07磨削周密0.020.0250.030.0353-5平面度和直線度的經(jīng)濟(jì)精度加工方法等級(jí)IT加工方法IT研磨、周密磨、刮研12粗磨、銑、刨、拉、車78

16、研磨、精磨、刮34銑、刨、車、插910磨、刮、精車56各種粗加工1112附表3-6平行度的經(jīng)濟(jì)精度加工方法研磨、珩磨、刮、周密磨磨、坐標(biāo)鏜、周密銑、周密刨123456加工方法銑、磨、刨、拉、鏜、車 各種粗加工IT789101112附表3-7端面圓跳動(dòng)和垂直度的經(jīng)濟(jì)精度加工方法研磨、精磨、精刮、周密車磨、刮、珩、精刨、精銑、精鏜IT123456加工方法各種粗加工IT789101112加工方法加工加工方法加工磨、珩磨磨、精車，一次裝夾下的內(nèi)圓磨及鏜IT12加工方法粗磨、車、鏜、拉、鏜IT7834車、鏜、鉆910各種粗加工111256附表3-9各種加工方法能到達(dá)的外表粗糙度Ra/mRa/mRa/m自

17、動(dòng)氣割、帶鋸或圓盤(pán)鋸割斷5012.515mm6.33.2鉆車5012.515mm256.3切斷銑2512.5粗有表皮12.56.3擴(kuò)孔砂輪3.21.6精6.31.6粗車12.53.2锪倒角孔的3.21.6金屬6.33.2帶導(dǎo)向的锪平面6.33.2半精車非金屬3.21.6粗鏜12.56.3車削外圓金屬3.20.8金屬6.33.2精車半精鏜非金屬1.60.4非金屬6.31.6或金剛石車金屬非金屬0.30.20.40.1鏜孔精鏜金屬非金屬3.20.81.60.4粗車12.56.3周密或金屬0.80.2金屬6.33.2金剛石鏜非金屬0.40.2外表粗糙度加工方法外表粗糙度切槽半精車精車周密車高速金屬

18、金屬非金屬6.31.66.31.66.31.60.80.40.80.212.56.33.2車削黃銅、青銅0.2車削黃銅、青銅0.20.1粗12.53.2精0.80.1精3.20.8超精加工周密0.10.05周密0.80.4鏡面加工兩次加工0.025粗12.53.2拋光精0.80.1精3.20.4周密0.10.025高速鏜半精鉸鋼一次鉸黃銅鑄鐵精鉸鉸孔二次鉸鋼、輕合金鋼周密鉸輕合金0.80.26.33.26.31.63.20.81.60.80.80.40.80.20.80.4銑削高速銑削周密粗0.80.21.60.8砂袋拋光砂布拋光0.20.11.60.1精0.40.2電拋光1.60.012粗1

19、2.53.2板牙、絲錐、自開(kāi)式3.20.8精3.21.6板牙頭刨削周密0.80.2切削車刀或梳刀車、銑6.30.8槽的外表6.33.2螺紋加工磨0.80.2粗2512.5研磨0.80.05插削精6.31.6搓絲模1.60.8滾軋拉削精1.60.4滾絲模1.60.2周密0.20.1粗滾3.21.6精0.80.2精滾1.60.8推削周密0.40.025精插1.60.8半精一次加工6.30.8精刨3.20.8切削精周密、超周密磨削0.050.025精周密、超周密磨削0.050.025磨0.80.1鏡面磨削0.05研0.40.2精周密0.80.40.20.05滾軋熱軋冷軋0.80.40.20.1精0.

20、80.2齒輪及花拉3.21.6密0.20.1鍵加工剃0.80.2珩磨粗一次加工珩磨粗一次加工0.80.2刮粗3.20.8精、周密0.20.025精0.40.05研磨粗精0.40.20.20.05滾壓加工鉗工銼削0.40.0512.50.8周密0.05砂輪清洗506.3附錄四加工面的機(jī)加工方案附表4-1外圓外表加工方案1粗車11125012.52-半精車8106.33.23-半精車-精車671.60.84-半精車-精車-滾壓拋光560.20.0255-半精車-磨削670.80.46-半精車-粗磨-精磨560.40.17半精車-粗磨-精磨-超精加工或輪式超精磨560.10.012序號(hào)加工方案經(jīng)濟(jì)加工公差等級(jí)序號(hào)加工方案經(jīng)濟(jì)加工公差等級(jí)IT加工外表適用范圍適于淬火鋼以外的各種金屬主要適于淬火鋼，也可工非鐵金屬8-半精車-精車-金剛石車560.40.025主要用于要求較高非鐵金屬9-半精車-粗磨-精磨-超精磨或鏡面磨50.025極高精度的鋼或鑄鐵的外圓加工10粗車-半精車-粗磨-精磨-研磨5級(jí)以上0.1序號(hào)加工方案經(jīng)濟(jì)加工公差等級(jí)IT加工外表粗糙度Ra/m適用范圍加工未淬火鋼及鑄鐵的實(shí)心毛坯，也可用于加工非鐵金屬但徑20mm加工未