Production drawings

The following three typical drawings are included as examples of draughtsmanship, layout, dimensioning, and tolerancing.

Figures 31.1 and 31.2 show a pulley and a shaft, and illustrate some aspects of general dimensioning and tolerancing.

Figure 31.3 shows a partly dimensioned elevation and plan view of a proposed gear-box cover, with a wide application of theoretically exact boxed dimensioning and the associated positional tolerances. To emphasize this style of dimensioning, other dimensions relating to the form of the cover have been omitted.

Completed drawings are usually presented on company standard sheets. Sizes, areas and designations are given at the start of Chapter 5. The layout of a typical sheet contains information required for identification, administration and interpretation and a company could design several types of standard sheets, particularly appropriate to their products.

If drawings are produced manually, then the drawing sheets may be supplied with printed borders and blocks containing relevant notes and headings. With CAD layouts, similar details are stored in the database.

Figures 31.4 to 31.7, clearly show that documentation can occupy much of the sheet area. The space provided for basic and supplementary information will be decided by the company; its actual position on the sheet may vary with the sheet size.

Dimensioning Method Pulley8888 2002 Borders MeasurementsEngineering Drawing
material L M,4

D6LPHI

Automotive systems

No. 7204/0131

n6 10:1

Engineering Drawing Symbols

Notes

Copyright

n1 Density to be checked in accordance with BS 5600 : Part 3 : Section 3.2 : 1988. ISO 2738 : 1987

n2 Unspecified radius 0,2 allowable on all edges. (Not shown on 5:1 views)

n3 Detail of draft feature along all flange edges.

n4 Detail of U/CUT.

n5 Hardness to be checked in accordance with BS EN 24498-1: 1993 ISO 4498-1 : 1990. In area indicated.

This drawing/or document is copyright and the property of Delphi Diesel Systems. It must not be copied (in whole or in part), used for manufacture or otherwise disclosed without prior written consent of the company. Any copies of this drawing made by any method must also include a copy of this legend.© Delphi Diesel Systems 1991

Unless otherwise stated the following are in accordance with the standard no(s) quoted:

1. Symbols & abbreviations to ISO 1101

3. I.S.O. unified threads to ISO 263 & 5864

Dimensions in millimetres (mm)

Remove sharp edges

Unless otherwise stated tolerances

Surface roughness V^

All diameters to be |(Q)| 0 0,1 -unless otherwise stated

n6 Detail of edge chamfer.

EMISSIONS CERTIFIED PRODUCT

This product has been certification tested. NO CHANGE to approved process, material, specification or supplier is permitted without formal DELPHI DIESEL SYSTEMS ENGINEERING APPROVAL

Supersedes 3Px 763/151

Similar to —

REF DRG No

First used on 7204/0100

Material

Steel

Specification 4—6—538A

Form Sinter

4

JCB 1 /9/94

Heat treatment —

3

7/6/93

7

JCB 18/4/97

Finish Natural

2

26/2/92

6

9/2/96

Drawn p Trickett Checked _

1

13/4/91

5

JCB 30/10/95

Translated by _ Checked _

Issue No.

Date & source

Issue No.

Date & source

Issue No.

Date & source

Approved qjj Date 13/4/91

Changes

Projection -f^J.

This drawing may only be altered or replaced in accordance with procedure

Current Service Cancelled |

Delphi Diesel Systems

Concord Road London W3 OSE

Do not measure undimensioned features

Title

Yoke - Spring

Classification code No.

No. 7204/0131 Sheet 1/1

Original scale ^ . -|

DELPHI

Automotive systems

No. 7206-0086

FIRST ANGLE PROJECTION 011,9

8888 2002 BordersHardness Angle Iron Scale Tolerance Bs8888 Drawing

4-2-550

19-25-86

Natural

M et erial

Silicon Iron

Heat treatment Hardness

This drawing/or document is copyright and the property of Delphi Diesel Systems it must not be copied (in whole or in part), used for manufacture or otherwise disclosed without prior written consent of the company. Any copies of this drawing made by any method must also include a copy of this legend. © Delphi Diesel Systems 2001

Ce dessin ou document est prolege par un droit de reproduction et est la propriété de Delphi Diesel Systems il ne doit pas et re copie (en entier ou en parlie.), utilise pour la fabrication ou divulgue sans accord écrit de la société. Toutes les copies de ce dessin realisees par un quelconque procede doivent également comporter un copie du cartouche. © Delphi Diesel Systems

Unless otherwise stated the following are in accordance with the standard nos quoted:

1. Metric threads to ISO 262 & 965.

2. Unified threads to ISO 263 & 5864.

3. Symbols & Abbreviations to ISO 1101.

Sauf mention particulière ce dessin est conforme aux standards suivants:

1. Filetages metriques ISO 262 ET 965

2. Filetages unifies 263 ET 5864

3. Symbol s ETAbbreviations ISO 1101

Dimensions in millimetres (mt Remove sharp edges Unless otherwise stated: -Tolerances Linear ±0.05

All diameters tc

Surface roughnes be l©l 0

Dimensions en millimetres (mi Ebavurer partout Sauf indications particulières: -tolerances generales

Angulaires ± Tout di am et re doit

Etat de su rface

-re III

Remarques n1 2 Places.

n2 For all Radii, equivalent edge condition to ISO 13715 acceptable.

n3 Unless otherwise stated surface finish is Ra.

n4 Edge condition to ISO 13715.

Isometric view (2:1)

Date & Issue Date & Issue Date &

MODIFICATIONS

Remplace dessin No.

Dessin similare A No.

Ref. Drg. No. 45-00004982/45-00004985

Dessin de reference

First used on PF1039

Date 21/11/2001

I I Survice Cancelled |

I I Rechange ^ Annule

Delphi Diesel Systems

Concord Road London W3 OSE

Delphi Diesel Systems

Concord Road London W3 OSE

Original scale 5:1 '

Classification code

Classification du ni

No. 7206-0086

1/1 No. 7206-0086

DELPHI

Automotive systems

No. 7204/0031

10 20 30 40 50 60 70 80 90 100

n1 4 places. n2 Diamond knurl

45TPI. 0.022" Pitch. 5 Places. n3 6 places.

n4 Alternative specification 4-1-262A.

This drawing/or document is copyright and the property of Delphi Diesel Systems. It must not be copied (in whole or in part), used for manufacture or otherwise disclosed without prior written consent of the company. Any copies of this drawing made by any method must also include a copy of this legend. © Delphi Diesel Systems 1988

Unless otherwise stated the following are in accordance with the standard no(s) quoted:

1. Symbols & abbreviations to ISO 1101

3. I.S.O. unified threads to ISO 263 & 5864

Dimensions in millimetres (mm) Remove sharp edges Unless otherwise stated tolerances Linear ±0,2 1,6 Angular ±-

Surface roughness ^ All diameters to be unless otherwise stated o - -

EMISSIONS CERTIFIED PRODUCT

This product has been certification tested. NO CHANGE to approved process, material, specification or supplier is permitted without formal Delphi Diesel Systems

ENGINEERING APPROVAL

Supersedes

Ref DRG No

3P X 757/35

First used on

Material

STEEL

Specification

4-1-597

0.25"

Heat treatment

JCB 21/10/91

Natural

13/7/89

Drawn NRM

27/2/88

Translated by -

Issue Date & Issue No. source No.

Date & source

Issue No.

Date & source

Approved CTT

27/2/88

This drawing may only be altered or replaced in accordance with procedure

Projection

Do not measure un dimensioned features

Delphi Diesel Systems

Tube - Spacer

Concord Road London W3 OSE

Classification code No.

Original scale

No. 7204/0031

DELPHI

Automotive systems

No. 7204/0140

Engineering Drawing Borders

Combined flash must conform to BS 6442:1984 Grade N.

This drawing/or document is copyright and the property of Delphi Diesel Systems. It must not be copied (in whole or in part), used for manufacture or otherwise disclosed without prior written consent of the company. Any copies of this drawing made by any method must also include a copy of this legend.

© Delphi Diesel Systems 1991

Unless otherwise stated the following are in accordance with the standard no(s) quoted:

1. Symbols & abbreviations to ISO 1101

3. I.S.O. unified threads to ISO 263 & 5864

Dimensions in millimetres (mm)

Remove sharp edges

Unless otherwise stated tolerances

Surface roughness \/

All diameters to be unless otherwise stated l©l g- -

EMISSIONS CERTIFIED PRODUCT

This product has been certification tested. NO CHANGE to approved process, material, specification or supplier is permitted without formal Delphi Diesel System

ENGINEERING APPROVAL

RefDRG No

3P X 763/155

First used on

7204/0149

Material

RUBBER

Specification

6-18-197

Moulding

17/9/93

Heat treatment

JCB 21/2/92

Drawn R.Trickett

Checked _

Translated by -

Date & source

Date& source

Date& source

Approved CTT

Date 27/9/91

Projection

This drawing may only be altered or replaced in accordance with procedure

Do not measure undimensioned features

Delphi Diesel Systems

Seal - Actuator body

Concord Road London W3 OSE

Classification code No.

No. 7204/0140

Engineering progress over the years has resulted in the issue of many Standards and clearly there are literally millions of drawings in circulation, which may contain minor details that have been superseded. It has been the custom in a drawing title block to record a brief note of dates when changes and modifications have occurred. A typical drawing number could be known as, for example: HB 345, for the original issue. Then HB 345A for the first reissue, HB 345B, for the second reissue. A brief note may be added to the drawing relating to the change. Each manufacturer will have their own system for recording full details and also advising current users that a change has occurred.

Examples are shown on some of the following illustrations.

In the case of textbooks, the front page generally states the publishing dates and obviously general standards used are appropriate to that date. Illustrations of typical layouts are reproduced by kind permission of Delphi Diesel Systems.

An advantage of producing a drawing on a CAD system is that the draughtsman can complete the illustration of the component or assembly on the screen. He may reposition some parts if space permits, to avoid congestion. The outline of the drawing sheet will be taken from the database on a separate layer and placed over the drawing to give a pleasing layout.

Draughtsmen have always derived much personal satisfaction from producing drawings in ink or pencil where the linework and lettering is uniform and neat, and where the illustration completely defines the requirements of the specification. A similar degree of satisfaction can be obtained by producing drawings on CAD equipment. Particular care with the spacings of centre lines, contrasts in linework, cross hatchings, positioning of dimensions, notes, etc, are all small details in their own way, but they collectively contribute to quality, balance and overall clarity. Check the reason for the position of each and every line, ensure that it conforms with the appropriate standard and that it conveys a clear and unambiguous meaning to the reader. Engineering drawings can be considered to be works of art. We both hope you will produce many.

Further Standards for design, project and risk management of interest to engineers and manufacturers

Design management

The first priority of an organization is to ensure that it survives and prospers. A business that fails to continuously develop its product range is unlikely to grow in real terms, especially with the increase in open competition across the globe.

This major series of management standards helps organizations plan ahead for products and services into the future thus ensuring continuity of revenue streams.

The BS 7OOO series - Design Management Systems is divided into concise parts applicable to different sectors.

BS 7000 - 1 Guide to managing innovation BS 7OOO - 2 Guide to managing the design of manufactured products BS 7OOO - 3 Guide to managing service design BS 7OOO - 4 Guide to managing design in construction BS 7OOO - 5 Guide to managing obsolescence BS 7OOO - 1O Glossary of terms used in design management

The standards in this series are available individually or in kit form. All six parts can also be ordered as BS 7OOO Design Management Systems kit 94.

Project management

BS 6O79-1 Project Management describes a full range of project management procedures, techniques and tools that you can select as appropriate to your project. It gives guidance on the planning and execution of projects and the application of project management techniques. The standard has a broad relevance to projects in many industries including the public sector, both at home and abroad. The principles and procedures outlined are relevant to all sizes of organization.

This standard aims primarily to provide guidance for relative newcomers to project management and to act as an aide-memoir for more experienced practitioners and those who interact with project management teams.

The other parts of BS 6079 are also available. BS 6079-2:2000 Project Management-Vocabulary BS 6079-3:2000 Project Management-Guide to the Management of Business Related Project Risk Project Management (kit 2) Contains the three parts of BS 6079 at a reduced price

BS 6079-4 Project management

Guide to project management in the construction industry BS IEC 62198

Project Risk Management Application Guidelines This standard provides an internationally approved process for managing project and project-related risks in a systematic and consistent way. It is relevant to decision-makers, including project managers, risk managers and business managers.

BS IEC 62198 provides a general introduction to project risk management, its sub-processes and influencing factors, such as:

• Establishing the context, including confirmation of project objectives

• Risk identification

• Risk assessment, including risk analysis and evaluation

• Risk treatment, impact mitigation and probability reduction

• Review and monitoring

• Communication (including consultation)

• Learning from the project

Guidelines are also provided on the organizational requirements for implementing the process of risk management appropriate to the various phases of a project.

BS 8888:2002 on CD-ROM

Contains BS 8888:2002 and the full set of 114 cross-

referenced documents.

• 114 publications on one disk, accessible at the click of a button

• A complete and comprehensive collection of all cross-referenced documents

• A concise route-map to the complex web of ISO standards within this area

Details regarding content and current prices can be obtained from the BSI Information Customers Services, 389 Chiswick High Road. London W4 4AL website: www.bsi-global.com/bsonline Tel: +44(0)20 8996 9001. Email: [email protected]

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Responses

  • katharina
    Where can i find an example of a 3rd angle drawing bs8888?
    6 years ago
  • vanessa
    Which engineering drawing symbols indicate hardness?
    5 years ago
  • DEXTER
    What do the BS8888 tolerance symbols mean?
    5 years ago
  • Osman Medhane
    Why is it important to have standard border on engineering drawing?
    5 years ago
  • ryan campos
    How to draw chamfer in engineering drawing?
    5 years ago
  • semhar
    How to use symbols in engineering drawings?
    5 years ago
  • Elisabetta Rossi
    How to show a thread on an engineering drawing?
    5 years ago
  • mehret
    How to draW A THREAD TO BS 8888?
    4 years ago
  • celendine
    How to dimensioning a shaft?
    4 years ago
  • Jacopo
    Is scale 1:6 accectible for engineering drawing iso 8888?
    2 years ago
  • Olga
    How to draw constructive spring for N4 engineering drawing?
    1 year ago
  • Yonas
    How to dimension a thread in component detail drawing?
    9 months ago
  • catherine
    How to dimension a thread in component detail engineering drawing?
    9 months ago
  • fern
    How to draw a rope pulley engineering drawing N3?
    8 months ago
  • shukornia awet
    How to section a pulley in engineering drawing?
    3 months ago

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