1、DKBA 華為技術(shù)有限公司內(nèi)部技術(shù)規(guī)范華為技術(shù)有限公司內(nèi)部技術(shù)規(guī)范 DKBA0.450.0040 REV C 鈑金沖壓件質(zhì)量要求鈑金沖壓件質(zhì)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(shí)施 華為技術(shù)有限公司 Huawei Technologies Co., Ltd. 版權(quán)所有 侵權(quán)必究 All rights reserved 修訂聲明Revision declaration 本規(guī)范擬制與解釋部門：整機(jī)工程部基礎(chǔ)平臺部 本規(guī)范的相關(guān)系列規(guī)范或文件:無 相關(guān)國際規(guī)范或文件一致性：無 替代或作廢的其

2、它規(guī)范或文件：無 相關(guān)規(guī)范或文件的相互關(guān)系：無 規(guī)范號規(guī)范號 主要起草主要起草 部門專家部門專家 主要評審部門專家主要評審部門專家修訂情況修訂情況 DKBA0.450.0040 REV C 基礎(chǔ)平臺部： 潘建軍（） 肖春秀() 整機(jī)工程部： 郭天次（）許志敏（），黃濤（）張 實(shí)（），鐘宏輝（），張潤孝（） MQE:陳亮（） SQE:王進(jìn)（） 1、增加了自鉚質(zhì)量要求； 2、刷新了鈑金件公差要求。 DKBA0.450.0040 REV B 質(zhì)量成本管理部： 肖春秀53994 整機(jī)工程部: 周偉 ,鄭玲 李俊周 ,魏華 楊曦晨 ,和永超 57041 MQE：曾松來 TQC：馬寶興39736 CEG：

3、鄭連東 1、將外觀表面的定義引用于 DKBA0.400.0021 2、增加了翻邊攻絲的質(zhì)量要求； DKBA0.450.0040 REV1.0 質(zhì)量成本管理部： 肖春秀53994 質(zhì)量成本管理部： 盛輝21628、周偉16271 結(jié)構(gòu)平臺開發(fā)部：鄭玲15593 MQE：陳軍17658 TQC：馬寶興39736 新歸檔 目目 錄錄 1.1.技術(shù)要求技術(shù)要求.6 6 1.1.1.1. 外觀及表面狀態(tài)一般要求外觀及表面狀態(tài)一般要求.6 1.1.1. 零件的毛刺面朝向要求.6 1.1.2. 沖裁類平板零件圓角要求.6 1.1.3. 零件上止裂孔、工藝槽要求.7 1.1.4. 彎曲零件未注圓角R要求 .7

4、 1.1.5. 翻邊攻絲質(zhì)量要求.8 1.1.6. 自鉚質(zhì)量要求.9 1.1.7. 零件表面的外觀要求.10 1.2.1.2. 鈑金沖壓件毛刺的要求鈑金沖壓件毛刺的要求.10 1.2.1. 毛刺的高度定義.10 1.2.2. 結(jié)構(gòu)件的毛刺區(qū)域分類.10 1.2.3. 鈑金沖壓件毛刺質(zhì)量要求.14 1.2.4. 鈑金沖壓件的熔渣要求.15 1.2.5. 鈑金沖壓件的接刀痕的要求.15 1.3.1.3. 鈑金沖壓件公差要求鈑金沖壓件公差要求.15 1.3.1. 公差要求.15 1.3.2. 鈑金件沖壓公差等級代號及數(shù)值.16 1.3.3. 其它說明.20 2.2.檢驗(yàn)規(guī)則檢驗(yàn)規(guī)則.2121 2.1

5、.2.1. 檢驗(yàn)類別檢驗(yàn)類別.21 2.1.1. 一般檢驗(yàn).21 2.1.2. 補(bǔ)充檢驗(yàn).21 2.2.2.2. 檢驗(yàn)原則檢驗(yàn)原則.21 2.3.2.3. 檢驗(yàn)規(guī)定檢驗(yàn)規(guī)定.21 圖目錄圖目錄 圖 1 折彎件毛刺方向示意圖.6 圖 2 平板件的尖角示意圖.6 圖 3 止裂孔直徑示意圖.7 圖 4 工藝槽口示意圖.7 圖 5 翻邊攻絲示意圖.8 圖 6 薄板連接用帶錐臺翻邊攻絲孔結(jié)構(gòu)示意圖.8 圖 7 自鉚連接示意圖.9 圖 8 鈑金件毛刺示意圖.10 圖 9 戶外機(jī)柜類A、B類區(qū)域判斷示意圖.12 圖 10 室內(nèi)機(jī)柜類A、B類區(qū)域判斷示意圖.13 圖 11 插箱類A、B類區(qū)域判斷示意圖.13

6、圖 12 拉手條及面板等小五金類A、B類區(qū)域判斷示意圖.14 圖 13 盒式類A、B類區(qū)域判斷示意圖.14 圖 14 倒角高度示意圖.15 表目錄表目錄 表 1 平板件圓角半徑r r值.6 表 2 普通翻邊高度H值和螺紋最少反復(fù)打入次數(shù).8 表 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(fù)打入次數(shù).9 表 4 自鉚參數(shù)表.9 表 5 自鉚連接點(diǎn)最小承力表.9 表 6 毛刺高度的極限值.15 表 7 鈑金公差數(shù)值表.16 鈑金沖壓件質(zhì)量要求鈑金沖壓件質(zhì)量要求 Specification For Sheet-metal Punching Part 范范 圍圍Scope:Scope: 本

7、規(guī)范規(guī)定了華為的鈑金沖壓件（表面處理前）的質(zhì)量要求、檢驗(yàn)規(guī)則。 本規(guī)范適用于華為所有的鈑金沖壓件（表面處理前），設(shè)計圖中有注明的要求以設(shè)計圖為準(zhǔn)，圖 中未注明的按此規(guī)范為準(zhǔn)。 簡簡 介介BriefBrief introductionintroduction： 規(guī)定了鈑金沖壓件(零件級)的質(zhì)量要求及檢驗(yàn)規(guī)則。 關(guān)鍵詞關(guān)鍵詞KeyKey wordswords： 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(shù)文件優(yōu)先級說明：華為技術(shù)文件優(yōu)先級說明： 華為產(chǎn)品生產(chǎn)執(zhí)行的技術(shù)文件有：華為圖紙、華為企業(yè)標(biāo)準(zhǔn)規(guī)范、通信設(shè)備行業(yè)標(biāo)準(zhǔn)、中國國家 標(biāo)準(zhǔn)、國際標(biāo)準(zhǔn)。這些標(biāo)準(zhǔn)的優(yōu)先級

8、別從高到低依次為：華為圖紙-華為企業(yè)標(biāo)準(zhǔn)規(guī)范-通信設(shè)備行 業(yè)標(biāo)準(zhǔn)-中國國家標(biāo)準(zhǔn)-國際標(biāo)準(zhǔn)。如果各級文件之間有不一致的地方，應(yīng)按最高級別的文件執(zhí)行。 在華為企業(yè)標(biāo)準(zhǔn)規(guī)范中，產(chǎn)品專用標(biāo)準(zhǔn)優(yōu)先于通用技術(shù)標(biāo)準(zhǔn)。 術(shù)語和定義術(shù)語和定義Term and areas specially required in design drawings. Class B AreaAreas except for Class A Area BurrBurr on the cross section of finished products when blanking sheet metal Height Of BurrB

9、urr height on the cross section of finished products when blanking sheet metal Full SpellingChinese Explanation Level 1 SurfaceCritical surface represents the product appearance. Through this kind of decorative surface, you can directly see the major product appearance, including the outer surface o

10、f 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 front door of the cabinet. Level 2 SurfaceMajor ou

11、ter 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 communications chassis) and radio frequency module, and topsid

12、e 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 not demanding on the surface quality, including the

13、 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 support, bundling rack, inner frame, and inner sol

14、der. Surfaces that not belong to level 1 and level 2 surfaces are level 3 surfaces. 1. Technical Requirements 1.1.General Requirements for Appearance and Surface 1.1.1. The burr surface is required to be inside the parts, as shown in Error! Reference source not found.: Figure 1 Burr of bends Excepti

15、ons: 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 opposite to the above diagram. 1.1.2. Blanked and shea

16、red 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 Error! Reference source not found.) with a radius (r) specified as Table 1. Taper angle Taper angle Figure 2 Taper angles of panel part

17、s Table 1 Radius (r) of taper angle Thickness (t) of materials 0.3 0.30.50.5112233 Radius (r) of taper angle 0.20.30.511.50.5t 1.1.3. If allowable as marked in design documents or drawings, stop holes or technical rabbets can be open according to the following hole diameter and rabbet size. 1、d, dia

18、meter of stop holes (as shown in Error! Reference source not found.), should be smaller than or equal to 2 t; Figure 3 Diameter of stop holes 2、L and b, sizes of technical rabbets (as shown in Error! Reference source not found.); When t 0.5 mm, 1 mm b 1.5 t (if 1.5 t 1000 Hole diameter 0.1 0 0.150.2

19、0N/AN/A 0.1 5 0.200.30N/AN/A Distance between two holes 0.1 0 0.150.200.250.30 0.1 5 0.200.300.400.50 Distance between a hole and an edge 0.1 0 0.150.200.250.30 0.1 5 0.200.300.400.50 Blanking Distance between a line and an edge 0.1 0 0.150.200.250.30 0.1 5 0.200.300.400.50 Blanking angle 03 0 03003

20、0N/AN/A 1.0 030030N/AN/A Level f (High Precision)Level m (Average Precision) Characteristi c Diameter, Distance, or Angle Picture 63 63 160 1604004001000 100 0 6363160160400 400 1000 1000 Distance between a hole and a bent flange (one bend) 0.1 5 0.200.200.250.30 0.2 0 0.300.500.500.50 Distance betw

21、een a bent flange and a flat edge (one bend) 0.1 5 0.200.200.250.30 0.2 0 0.300.500.500.50 Distance between two holes 0.2 0 0.250.250.300.40 (two bends) 0.2 5 0.300.500.500.75 Distance between two bent flanges (two bends) 0.1 5 0.200.200.250.30 0.2 5 0.300.500.500.75 Distance between a flat edge and

22、 a bent flange Forming (three bends) 0.2 0 0.250.250.300.40 0.3 0 0.400.500.751.00 Characteristi c Diameter, Distance, or Angle Picture Level f (High Precision)Level m (Average Precision) 63 63 160 1604004001000 100 0 6363160160400 400 1000 1000 Distance between two bent flanges (four bends) 0.2 5 0

23、.300.300.400.50 0.3 0 0.400.500.751.00 Distance between two holes 0.2 0 0.250.250.300.40 (four bends) 0.3 0 0.400.500.751.00 Level f (High Precision)Level m (Average Precision) Characteristic Diameter, Distance, or Angle Picture 6363160 160 400 400 1000 100 0 63 63 160 160 400 400 1000 1000 Distance

24、 between two flat edges (four bends) 0.200.250.250.300.400.300.400.500.751.00 Partial forming 1010252563N/AN/A1010252563N/AN/A Height0.150.200.30N/AN/A0.200.300.50N/AN/A Partial forming Forming Length 0.150.200.200.250.300.200.300.500.751.00 Characteristic Diameter, Distance, or Angle Picture Level

25、f (High Precision)Level m (Average Precision) 6363160 160 400 400 1000 100 0 63 63 160 160 400 400 1000 1000 Length of a blank holding surface (zero gap) 0.15N/AN/AN/AN/A0.30N/AN/AN/AN/A Depth of a blank holding joint (zero gap) 0.20.3 0 N/AN/AN/AN/A 0 N/AN/AN/AN/A Depth of a blank holding joint (wi

26、th gap) 0.20N/AN/AN/AN/A0.30N/AN/AN/AN/A Bending angle 0.50.50.50.50.51.01.01.01.01.0 Level f (High Precision)Level m (Average Precision) Characteristi c Diameter, Distance, or Angle Picture 63631601604004001000 1000 63631601604004001000 1000 Others Size of a free-of- painting area 1.01.51.51.52.01.

27、01.51.51.52.0 Characteristi c Diameter, Distance, or Angle Picture Level f (High Precision)Level m (Average Precision) 63631601604004001000 1000 63631601604004001000 1000 Length of a silk screen0.50.50.50.5N/A0.50.50.50.5N/A Flatness (with little blanking processes) 0.30.50.81.530.50.81.535 Flatness

28、 (with forming, welding, and piercing processes) 0.50.81.5350.81.5357 NOTE 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 around 30%. The table applies only to common metal sheets, such as cold-rolled

29、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, line bridges, embossments, knock-off holes, and shutters, see the toleran

30、ces 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 bent flange. Tolerances marked with are adjusted based the process se

31、quence (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 flatness tolerances. If more than four bends are applied, tolerance for e

32、ach additional bend increases by 0.05. Tolerances for listed characteristics in the table apply to similar unlisted characteristics. 1.3.3.Remarks The sizes, diameters, and distances and their tolerances apply to finished metal sheets that have undergone surface processing, such as passivation, oxid

33、ation, plating, and painting. 2. Inspection Rule 2.1. Inspection Category 2.1.1.General Inspection General inspection involves appearance checks, size and allowance tests, and regular performance tests for sheet metals according to design and technical documents. Appearance checks confirm the sheet-

34、metal punching parts by touch, visual assessment, illumination and reflection, and illumination and projection etc. Size and allowance tests examine the size, shape, position and tolerance of sheet-metal punching parts with tools, fixtures and measures. A general inspection can be conducted according to the requirements of technical documents or standard samples. 2.1.2.Supplementary Inspection Supplementary inspections are inspectio