鈑金沖壓件質量要求

1、精選優(yōu)質文檔-傾情為你奉上精選優(yōu)質文檔-傾情為你奉上專心-專注-專業(yè)專心-專注-專業(yè)精選優(yōu)質文檔-傾情為你奉上專心-專注-專業(yè)DKBA華為技術有限公司內部技術規(guī)范DKBA0.450.0040 REV C鈑金沖壓件質量要求Specification For Sheet-metal Punching Part 2012年07月30日發(fā)布 20012年09月1日實施華為技術有限公司Huawei Technologies Co., Ltd.版權所有 侵權必究All rights reserved修訂聲明Revision declaration本規(guī)范擬制與解釋部門：整機工程部基礎平臺部本規(guī)范的相關系列規(guī)

2、范或文件:無相關國際規(guī)范或文件一致性：無替代或作廢的其它規(guī)范或文件：無相關規(guī)范或文件的相互關系：無規(guī)范號主要起草部門專家主要評審部門專家修訂情況DKBA0.450.0040 REV C基礎平臺部：潘建軍（）肖春秀()整機工程部：郭天次（）許志敏（），黃濤（）張實（），鐘宏輝（），張潤孝（）MQE:陳亮（）SQE:王進（）1、增加了自鉚質量要求；2、刷新了鈑金件公差要求。DKBA0.450.0040 REV B質量成本管理部：肖春秀53994整機工程部:周偉 ,鄭玲 李俊周 ,魏華 楊曦晨 ,和永超 57041MQE：曾松來TQC：馬寶興39736CEG：鄭連東 1、將外觀表面的定義引用于DKB

3、A0.400.00212、增加了翻邊攻絲的質量要求；DKBA0.450.0040 REV1.0質量成本管理部：肖春秀53994質量成本管理部：盛輝21628、周偉16271結構平臺開發(fā)部：鄭玲15593MQE：陳軍17658TQC：馬寶興39736新歸檔目 錄 TOC o 1-3 h z u 圖目錄 TOC h z c 圖 表目錄 TOC h z c 表 REF 文檔名稱 h * MERGEFORMAT 鈑金沖壓件質量要求 Specification For Sheet-metal Punching Part范 圍Scope:本規(guī)范規(guī)定了華為的鈑金沖壓件（表面處理前）的質量要求、檢驗規(guī)則。本規(guī)

4、范適用于華為所有的鈑金沖壓件（表面處理前），設計圖中有注明的要求以設計圖為準，圖中未注明的按此規(guī)范為準。簡 介Brief introduction：規(guī)定了鈑金沖壓件(零件級)的質量要求及檢驗規(guī)則。關鍵詞Key words：外觀、表面狀態(tài)、工藝槽口、圓角半徑、A類區(qū)域、B類區(qū)域、毛刺、毛刺高度華為技術文件優(yōu)先級說明：華為產品生產執(zhí)行的技術文件有：華為圖紙、華為企業(yè)標準規(guī)范、通信設備行業(yè)標準、中國國家標準、國際標準。這些標準的優(yōu)先級別從高到低依次為：華為圖紙-華為企業(yè)標準規(guī)范-通信設備行業(yè)標準-中國國家標準-國際標準。如果各級文件之間有不一致的地方，應按最高級別的文件執(zhí)行。在華為企業(yè)標準規(guī)范中，產

5、品專用標準優(yōu)先于通用技術標準。術語和定義Term&Definition：縮略語Abbreviations 英文全名 Full spelling中文解釋 Chinese explanationA類區(qū)域Class A Area在鈑金供應商交貨時，產品在正常工作位置手能觸膜到的邊角區(qū)域；以及設計圖中特別要求的部位。B類區(qū)域Class B Area不屬于A類的區(qū)域都為B類區(qū)域毛刺Burr指板料沖裁后留在沖裁件斷面邊緣鋒利的凸起，毛刺高度Height Of Burr指板料沖裁后留在沖裁件斷面邊緣鋒利的凸起的高度毛刺面Surface of Burr指邊緣有毛刺的沖裁件平面。對于落料，毛刺面是接觸凸模的平面

6、；對于沖孔，毛刺面是接觸凹模的平面。1級表面Class 1 Surface重要外觀表面，體現產品外觀形象，具有裝飾性，可以直接正視到的主要外觀表面。主要包括機柜、插框（包括一體化機箱和數通機箱）、無線射頻模塊、盒式結構、拉手條等的正面和正面上主要零部件的外表面、機柜前門開門后的正視面、高度小于、等于1.8米的機柜頂面（如Hert中機柜頂面）等。2級表面Class 2 Surface主要外表面，半裝飾性的經?？梢姷耐庥^表面。主要包括機柜方孔條正面、機柜外部側面、機柜后面、插框（包括一體化機箱和數通機箱）、無線射頻模塊的外部側面和后面及防護網等處經常被打開的可視面等。小五金件、機柜機箱附件等均定義

7、為2級表面。3級表面Class 3 Surface次要外表面和內表面，不是以裝飾為目的，表面質量要求不高的結構表面。主要包括機柜、插框（包括一體化機箱和數通機箱）、無線射頻模塊、盒式結構、拉手條等的內表面和底面、高度大于1.8米的機柜頂面以及安裝支架、綁線架、內部框架、內部焊件的所有表面等。除1、2級表面外的表面均為3級表面。 技術要求外觀及表面狀態(tài)一般要求零件的毛刺面朝向要求毛刺面朝向零件里面，如圖1：圖 SEQ 圖 * ARABIC 1 折彎件毛刺方向示意圖特殊情況：按編碼級分析零件之間的裝配關系，零件的毛刺面應在里面或非功能面；如“L”型的零件為滑道，則毛刺面應在零件的外面，與上圖相反。

8、沖裁類平板零件圓角要求圖樣上未注明的外形和內緣小于或等于90的尖角處應制成圓角（見 REF _Ref n h * MERGEFORMAT 圖2），其圓角半徑r按 REF _Ref n h * MERGEFORMAT 表1規(guī)定。圖 SEQ 圖 * ARABIC 2 平板件的尖角示意圖表 SEQ 表 * ARABIC 1 平板件圓角半徑r值材料厚度 t 0.30.30.50.5112233圓角半徑r0.20.30.511.50.5t零件上止裂孔、工藝槽要求當設計文件或圖樣上注明允許開止裂孔或工藝槽口時，其止裂孔直徑和工藝槽口尺寸，按下列要求選擇：1、止裂孔直徑d（見圖3）不大于2t； 圖 SEQ

9、圖 * ARABIC 3 止裂孔直徑示意圖2、工藝槽口尺寸L和b（見 REF _Ref n h * MERGEFORMAT 圖4）；當t0.5mm時，1mmb1.5 t （如1.5t1，則b=1）；當t0.5mm時，b=1mm。Lt+r+0.5b圖 SEQ 圖 * ARABIC 4 工藝槽口示意圖彎曲零件未注圓角R要求當圖樣上未注明彎曲半徑時，允許按內彎曲半徑R不大于t（t為材料厚）且最小值為0.2。翻邊攻絲質量要求1、普通翻邊高度H值和螺紋壽命滿足以下要求：圖 SEQ 圖 * ARABIC 5 翻邊攻絲示意圖表 SEQ 表 * ARABIC 2 普通翻邊高度H值和螺紋最少反復打入次數螺紋規(guī)格

10、板厚T翻邊高度H（公差+0.30）內圓角R最大值最少反復打入次數M30.81.80.3121.02301.22.2301.52.430M41.02.4301.22.6301.5330M51.22.4301.52.7302、 薄板連接用的帶錐臺翻邊攻絲 該翻邊攻絲孔用于薄板連接的場景，實現M3國標沉頭螺釘在0.8、1.0mm板材上不凸出板面,使翻邊高度H值和螺紋壽命滿足以下要求圖 SEQ 圖 * ARABIC 6 薄板連接用帶錐臺翻邊攻絲孔結構示意圖表 SEQ 表 * ARABIC 3 薄板連接用帶錐臺翻邊攻絲孔翻邊高度H值和螺紋最少反復打入次數螺紋規(guī)格材料板厚T翻邊后底孔內徑D1(參考)翻邊高

11、度H（公差+0.20）沉頭孔大徑D3 (公差0.1)最少反復打入次數M3鋼1000636316016040040010001000沖裁特征圓孔直徑0.100.150.20-0.150.200.30-孔間距0.100.150.200.250.300.150.200.300.400.50孔邊距0.100.150.200.250.300.150.200.300.400.50直邊距0.100.150.200.250.300.150.200.300.400.50沖裁角度030030030-1.0030030-特征分類尺寸分類特征示意圖f級(精密精度)m級(中等精度)6363160160400400100

12、01000636316016040040010001000成型特征孔到折彎邊距離0.150.200.200.250.300.200.300.500.500.50(1次折彎)直邊到折彎邊距離0.150.200.200.250.300.200.300.500.500.50(1次折彎)孔間距0.200.250.250.300.400.250.300.500.500.75(2次折彎)折彎邊到折彎邊距離0.150.200.200.250.300.250.300.500.500.75(2次折彎)直邊到折彎邊距離0.200.250.250.300.400.300.400.500.751.00(3次折彎)折彎

13、邊到折彎邊距離0.250.300.300.400.500.300.400.500.751.00(4次折彎)孔間距0.200.250.250.300.400.300.400.500.751.00(4次折彎)特征分類尺寸分類特征示意圖f級(精密精度)m級(中等精度)636316016040040010001000636316016040040010001000成型特征直邊到直邊距離0.200.250.250.300.400.300.400.500.751.00(4次折彎)局部成型1010252563-1010252563-形狀尺寸0.150.200.30-0.200.300.50-局部成型0.15

14、0.200.200.250.300.200.300.500.751.00位置尺寸壓死邊長度0.15-0.30-壓死邊厚度0.2-0.3-(無間隙)00壓死邊厚度0.20-0.30-(有間隙)折彎角度0.50.50.50.50.51.01.01.01.01.0特征分類尺寸分類特征示意圖f級(精密精度)m級(中等精度)636316016040040010001000636316016040040010001000其它特征噴涂保護尺寸1.01.51.51.52.01.01.51.51.52.0絲印尺寸0.50.50.50.5-0.50.50.50.5-平面度0.30.50.81.530.50.81.

15、535(平面內少量沖裁特征)平面度0.50.81.5350.81.5357(平面內有成形、焊縫或密孔等特征)說明：上表適用于厚度不大于1.5mm板材，大于1.5mm厚度的板材其公差可酌情相應增加30%左右；上表適用于冷軋板、鍍鋅板等常用板材，彈簧板等板材其公差可酌情相應增加；沖密孔（通風孔）尺寸公差可參照相應沖裁尺寸公差放大；壓印、壓字、加強筋、線橋、凸臺、敲落孔、百葉窗等特征公差均可參照局部成形公差值；壓鉚螺母/螺柱/螺釘等位置尺寸公差值在其底孔的位置尺寸公差值基礎上加0.05；注示為的沖裁角度、折彎角度的尺寸分段分別指相應特征沖裁短邊尺寸、折彎短邊尺寸數值分段；注示為的公差數值根據工序調整

16、（先折彎后沖孔）可按沖裁孔間距標注公差；注示為的平面度尺寸分段指平面內最大對角線長度尺寸分段；直線度公差值可參照上表中的平面度公差值執(zhí)行；對于多于4折的折彎特征，其累積公差按每折加0.05的精度來處理；對于多于4折的折彎特征，可以提高其中某一折的尺寸精度，提高的精度值可參照1次折彎精度；對于上表中未列出的特征，其尺寸公差可參照相似/相近的特征公差來處理；其它說明鈑金件尺寸及公差要求是指鈑金件成品尺寸及公差，即表面處理（鈍化、氧化、電鍍、噴涂等）后的尺寸及公差；檢驗規(guī)則檢驗類別一般檢驗一般檢驗是指根據設計圖樣和工藝文件的規(guī)定，對鈑金沖壓件進行的外觀檢驗、尺寸及公差配合檢驗及常規(guī)性能檢驗。外觀檢驗

17、是依靠手摸、目測、光照反射、光照投影等方法對鈑金沖壓件的外觀進行檢驗；尺寸及公差配合檢驗是采用工具、夾具、量具，以檢驗鈑金沖壓件的尺寸、形狀、位置公差；一般檢驗可按工藝文件要求或采用標準樣件作為對照判定的依據。補充檢驗補充檢驗是指一般檢驗以外的檢驗。它包括硬度檢驗、磁性檢驗、彈性檢驗、滲透檢驗、無損探傷檢驗等。檢驗原則鈑金沖壓件必須進行首件檢驗、巡回檢驗和驗收檢驗；鈑金沖壓件原則上只進行一般檢驗；當設計圖樣或其它技術文件有具體要求時，應進行補充檢驗；批量生產的鈑金沖壓件，按需要可進行抽檢或全檢，抽檢的方法一般按GB 2828和GB 2829的規(guī)進行；全檢一般僅檢驗主要部分（包括特定的外觀要求）

18、。檢驗規(guī)定沖裁、剪切零件的外形按最大尺寸處進行測量；內孔按最小尺寸處進行測量；止裂孔直徑及工藝槽口尺寸，只在展開料時檢查，零件成形后不作檢查；加工后易變形，而在裝配時能重新恢復所需幾何形狀的零件，其尺寸和形狀誤差，可在裝配狀態(tài)下測量，在自由狀態(tài)下允許超出極限尺寸。Contents TOC h z t 標題 1,1,標題 2,2,標題 3,3, Heading 1,1,Heading 2,2,Heading 3,3 Figures TOC h z t Figure Description,1 c Figure Tables TOC f t h z t Table Description,1 c

19、Table Specifications for Sheet-metal Punching PartsScopeThis specification covers the general quality requirements and inspection rules for Huawei sheet-metal punching parts (before surface treatment).This specification applies to Huaweis all sheet-metal punching parts (before surface treatment). Re

20、ference is given to the design drawings with noted requirement and to this specification if not noted in the design drawing.Brief IntroductionThis specification provides the general quality requirements and inspection rules for sheet-metal punching parts.KeywordsAppearance, surface status, technical

21、 rabbet, fillet radius, class A area, class B area, burr, and burr height.Revision DeclarationStatement on the Priority of Huawei Technical DocumentsHuawei products are manufactured based on the following documents which are listed in order of priority: Huawei drawings, Huawei enterprise technical s

22、tandards, telecommunications industry standards, China national standards, and international standards. Shall there be discrepancy between these documents, the document of the highest priority takes precedence.Among Huawei enterprise technical standards, specific product standards have higher priori

23、ties than general standards.Term & DefinitionFull SpellingChinese ExplanationClass A AreaCorner areas touchable by hands in the normal working position of products when delivered by sheet-metal suppliers; and areas specially required in design drawings.Class B AreaAreas except for Class A AreaBurrBu

24、rr on the cross section of finished products when blanking sheet metalHeight Of BurrBurr height on the cross section of finished products when blanking sheet metalLevel 1 SurfaceCritical surface represents the product appearance. Through this kind of decorative surface, you can directly see the majo

25、r product appearance, including the outer surface of the front and of the main parts installed on the front of the cabinet, subrack (involving the integrated chassis and data communications chassis), radio frequency module, box, handle bar, and the surface that you can directly see after opening the

26、 front door of the cabinet.Level 2 SurfaceMajor outer surface is half-decorative and is commonly seen, including the front of the mount bar on the cabinet, sides outside the cabinet, rear of the cabinet, sides outside and at rear of the subrack (involving the integrated chassis and data communicatio

27、ns chassis) and radio frequency module, and topside of the cabinet that is lower than 1.8 m. Surfaces of the ironware and accessories of the cabinet and chassis are all defined as level 2 surfaces.Level 3 SurfaceMinor outer surface and inner surface. These surfaces are not decoration-oriented and no

28、t demanding on the surface quality, including the inner surface and underside of the cabinet, subrack (involving the integrated chassis and data communications chassis), radio frequency module, box, and handle bar, topside of the cabinet that is higher than 1.8m, and all surfaces of the installing s

29、upport, bundling rack, inner frame, and inner solder. Surfaces that not belong to level 1 and level 2 surfaces are level 3 surfaces.Technical RequirementsGeneral Requirements for Appearance and Surface The burr surface is required to be inside the parts, as shown in REF _Ref r h * MERGEFORMAT Figure

30、 1:Figure SEQ Figure * ARABIC 1 Burr of bendsExceptions: the burr surface is the inner surface or non-functional surface of parts if the assembling relationship between parts is analyzed based on the coding level; the burr surface is the outer surface of parts if L-shaped parts are slideways, and op

31、posite to the above diagram. Blanked and sheared panel parts taper angles with outer shapes and inner edges smaller than or equal to 90 which are not noted on the drawing should be made as fillets (as shown in REF _Ref n h * MERGEFORMAT Figure 2) with a radius (r) specified as Table 1.Figure SEQ Fig

32、ure * ARABIC 2 Taper angles of panel partsTable SEQ Table * ARABIC 1 Radius (r) of taper angleThickness (t) of materials 0.30.30.50.5112233Radius (r) of taper angle 0.20.30.511.50.5t If allowable as marked in design documents or drawings, stop holes or technical rabbets can be open according to the

33、following hole diameter and rabbet size.d, diameter of stop holes (as shown in REF _Ref n h Figure 3), should be smaller than or equal to 2 t;Figure SEQ Figure * ARABIC 3 Diameter of stop holesL and b, sizes of technical rabbets (as shown in REF _Ref n h Figure 4);When t 0.5 mm, 1 mm b 1.5 t (if 1.5

34、 t 1, b = 1)When t 0.5 mm, b = 1 mm.L t + r+0.5bFigure SEQ Figure * ARABIC 4 Technical rabbetParts formed by curving without a curving radius noted on the drawing can be made with an internally curving radius R no larger than t (thickness of materials) and no smaller than 0.2.Requirements for flangi

35、ng-hole with thread：Requirements for height(H) and Min removable times of flanging (as shown in REF _Ref n h * MERGEFORMAT Figure 5) Figure SEQ Figure * ARABIC 5 Schematic diagram for flanging-hole with threadTable SEQ Table * ARABIC 2 The data of height(H) and Min removable timesThreadPlate thickne

36、ss(T)Inner diameter of flanging-hole(D1)High of flanging-hole(H)(Tolerance 0+0.3)Max. RMin removable times(Time)M30.82.51.80.3121.02301.22.2301.52.430M41.03.32.4301.22.6301.5330M51.24.22.4301.52.7302、 Flanging-hole with thread for thin sheet connectedThe flanging-hole is used in thin sheet connected

37、, to achieve that standard countersunk head screw M3 could be sunk into the plate surface with thickness 0.8mm or 1.0 mm. Requirements for height(H) and Min removable times of flanging (as shown in REF _Ref n h * MERGEFORMAT Figure 6).Figure SEQ Figure * ARABIC 6 Schematic diagram for flanging-hole

38、with thread for thin sheet connectedTable SEQ Table * ARABIC 3 The data of height(H) and Min removable times for flanging-hole with thread for thin sheet connectedThreadMaterialPlate thickness(T)Inner diameter of flanging-hole D1(Reference)High of flanging-hole(H)(Tolerance 0+0.2)Outer diameter of f

39、langing-hole D3 (Tolerance0.1)Min removable times(Time)M3Steel 1000 63631601604004001000 1000BlankingHole diameter0.100.150.20N/AN/A0.150.200.30N/AN/ADistance between two holes0.100.150.200.250.300.150.200.300.400.50Distance between a hole and an edge0.100.150.200.250.300.150.200.300.400.50Distance

40、between a line and an edge0.100.150.200.250.300.150.200.300.400.50Blanking angle 030030030N/AN/A1.0030030N/AN/ACharacteristicDiameter, Distance, or AnglePictureLevel f (High Precision)Level m (Average Precision) 636316016040040010001000 63631601604004001000 1000FormingDistance between a hole and a b

41、ent flange0.150.200.200.250.300.200.300.500.500.50(one bend)Distance between a bent flange and a flat edge0.150.200.200.250.300.200.300.500.500.50(one bend)Distance between two holes0.200.250.250.300.400.250.300.500.500.75(two bends)Distance between two bent flanges0.150.200.200.250.300.250.300.500.

42、500.75(two bends)Distance between a flat edge and a bent flange0.200.250.250.300.400.300.400.500.751.00(three bends)Distance between two bent flanges0.250.300.300.400.500.300.400.500.751.00(four bends)Distance between two holes0.200.250.250.300.400.300.400.500.751.00(four bends)CharacteristicDiamete

43、r, Distance, or AnglePictureLevel f (High Precision)Level m (Average Precision) 636316016040040010001000 63631601604004001000 1000FormingDistance between two flat edges0.200.250.250.300.400.300.400.500.751.00(four bends)Partial forming 1010252563N/AN/A1010252563N/AN/AHeight0.150.200.30N/AN/A0.200.30

44、0.50N/AN/APartial forming0.150.200.200.250.300.200.300.500.751.00LengthLength of a blank holding surface (zero gap)0.15N/AN/AN/AN/A0.30N/AN/AN/AN/ADepth of a blank holding joint (zero gap)0.2N/AN/AN/AN/A0.3N/AN/AN/AN/A00Depth of a blank holding joint (with gap)0.20N/AN/AN/AN/A0.30N/AN/AN/AN/ABending

45、 angle 0.50.50.50.50.51.01.01.01.01.0CharacteristicDiameter, Distance, or AnglePictureLevel f (High Precision)Level m (Average Precision) 63631601604004001000 1000 63631601604004001000 1000OthersSize of a free-of-painting area1.01.51.51.52.01.01.51.51.52.0Length of a silk screen0.50.50.50.5N/A0.50.5

46、0.50.5N/AFlatness 0.30.50.81.530.50.81.535(with little blanking processes)Flatness 0.50.81.5350.81.5357(with forming, welding, and piercing processes)The table applies only to metal sheets with depths less than or equal to 1.5 mm. For metal sheets with greater depths, the tolerances increase by arou

47、nd 30%.The table applies only to common metal sheets, such as cold-rolled sheets and galvanized sheets. Spring sheets allow larger tolerances.Size tolerances for high-density holes (ventilation holes) can be larger than blanking tolerances.For tolerances for imprinted marks, imprinted words, ribs, l

48、ine bridges, embossments, knock-off holes, and shutters, see the tolerances for partial forming in the table.Size tolerances for rivet nuts, studs, or screws are 0.05 larger than those for hole sizes.Size segments of tolerances marked with correspond to the lengths of the shorter blanking flange and

49、 bent flange.Tolerances marked with are adjusted based the process sequence (bending first and piercing later) and can be the distance between two holes.Size segments of tolerances marked with correspond to the length of the longest diagonal line on a surface.Straightness tolerances equal the flatne

50、ss tolerances.If more than four bends are applied, tolerance for each additional bend increases by 0.05.Tolerances for listed characteristics in the table apply to similar unlisted characteristics.RemarksThe sizes, diameters, and distances and their tolerances apply to finished metal sheets that have undergone surface processing, such as passivation, oxidation, plating, and painting.Inspection Rule Inspection CategoryGeneral InspectionGeneral inspection involves appearance checks, size and allowance t