Orthographic and Pictorial Views

Engineering Drawing and Related Documentation Practices

AN A MERICAN NA TIONAL S T AND ARD

ASME Y14.3

ADOPTION NOTICE

ASME Y14.3, “Orthographic and Pictorial Views,” was adopted on 28 January 2013 for use by the Department of Defense (DoD). Proposed changes by DoD activities must be submitted to the DoD Adopting Activity: Commander,

U.S. ARDEC, ATTN RDAR-QES-E, Picatinny Arsenal, NJ 07806-5000 or emailed to usarmy.picatinny.ardec.list.ardec-stdzn-branch@mail.mil. Copies of this document may be purchased from The American Society of Mechanical Engineers, Two Park Avenue, New York, New York, United States, 10016. https://www.asme.org.

Custodians: Adopting Activity:

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Navy — SA (Project DRPR-2013-006)

Air Force — 16 DLA — DH

Review Activities:

Army — AV, CR, MI, PT, TE, TM Navy — AS, CG, CH, MC, NP

Air Force — 04, 13, 99 DLA — IS

OSD — SE

Other — CM, MP, DC2, NS

NOTE: The activities listed above were interested in this document as of the date of this document. Since organizations and responsibilities can change, you should verify the currency of the information above using the ASSIST Online database at https://assist.dla.mil.

AREA DRPR

ASME Y14.3-2012

[Revision of ASME Y14.3-2003 (R2008)

and Consolidation of ASME Y14.4M-1989 (R2009)]

ASME Y14.3-2012

[Revision of ASME Y14.3-2003 (R2008)

and Consolidation of ASME Y14.4M-1989 (R2009)]

Orthographic and Pictorial Views

Engineering Drawing and Related Documentation Practices

AN AMERICAN NATIONAL STANDARD

Two Park Avenue • New York, NY • 10016 USA

Date of Issuance: August 30, 2013

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The American Society of Mechanical Engineers Two Park Avenue, New York, NY 10016-5990

Copyright © 2013 by

THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS

All rights reserved Printed in U.S.A.

CONTENTS

Foreword vi

Committee Roster vii

Correspondence With the Y14 Committee viii

iii

1. Drawings With One View 25

2. Drawings With Two Views 25

3. Drawing With Three Orthographic Views 26

4. Drawing With Three Orthographic Views of a Stamping 26

5. Front View and Partial Auxiliary Views 27

6. Partial Auxiliary View 27

7. Partial Auxiliary, Partial Front, and Right-Side Views 28

8. Partial Primary and Secondary Auxiliary Views 28

9. Detail 29

10. Phantom Lines for Related Parts 29

1. Section Lining 32

2. Zone Referencing for Removed Sections 32

3. Full Section, Cutting Plane Omitted 33

4. Half Section, Cutting Plane Omitted 33

5. Identifying Sections 34

6. Arrow Method — Identifying Sections 35

7. Bent and Offset Cutting Planes 35

8. Full Section 36

9. Half Section, Assembly 36

10. Omission of Visible Lines 37

11. Omission of Hidden Lines 37

12. Constructed Offset Section View 38

13. Aligned Section 38

14. Removed Section 39

15. Removed Sections on Center Lines 39

16. Revolved Sections 40

17. Broken-Out Sections 40

18. Auxiliary Sections 40

1. Model 43

2. Model and Drawing Graphic Sheet 44

3. Design Model With Offset Section 45

4. Design Model Cutting Plane 46

5. Design Model With Cutting-Plane Intersection Lines Shown 47

6. Axonometric Views, Coordinate System Shown, Section View Rotated 48

7. Drawing Graphic Sheet, Cutting-Plane Intersection Lines Shown 49

8. Section View in the Same Orientation as the View Containing the Cutting Plane 50

1. Line Precedence 52

2. Use of Hidden Lines in Pictorial 53

3. Rotated Features to Show True Shape 53

4. Small Intersections 54

5. Large Intersections 54

6. Conventional Representation, Filleted and Rounded Corners 55

7. Conventional Representations, Fillets, Rounds, and Runouts 55

8. Fillets and Rounds 56

9. Conventional Representation, Breaks in Elongated Features 57

10. Break Lines 58

11. Section Through Ribs 58

12. Conventional Representation of Ribs 59

13. True Geometry Through Ribs 59

14. Section Across Ribs 60

15. Section Views and Section Lining 60

16. Section Through Assembly 61

17. Section Through Shafts, Keys, Bolts, Nuts, and Like Items 61

18. Spokes in Section 62

19. Rotated Features 62

    iv

20. Conventional Representation of Rotated Features 63

21. Intersections in Section 63

22. Intersections. 64

1. Comparison of Standard Section With Exploded Assembly 65

   Nonmandatory Appendices

   
   

   A	Space Geometry ...............................................................................................................................................	67
   B	Space Analysis and Applications ..................................................................................................................	72
   C	Illustrations.......................................................................................................................................................	78
   Index	............................................................................................................................................................................	83

   
   

   v

   FOREWORD

   
   

   This issue is a revision of ASME Y14.3-2003, formerly titled “Multiview and Sectional View Drawings.” This revi- sion of ASME Y14.3 was initiated in response to industry and DoD requests that international practices and computer aided design (CAD) capabilities be accommodated. The work on this revision of the standard began in April 2009 in a virtual meeting of the ASME Y14 Subcommittee 3 (SC3). Work moved forward with a focus on adding practices relevant to CAD utilization.

   Following the April 2009 meeting, the chairman of SC3, B. A. Wilson, and the chairman of SC4, J. D. Keith, began discussions regarding the possible merge of content from ASME Y14.3 and Y14.4 to locate orthographic and pictorial view requirements in one standard. A new scope and charter of SC3 was drafted to cover the combined content, and it was submitted to the ASME Y14 committee for approval. Approval was given and members of SC4 were combined with SC3. ASME Y14.3 was given a new title of “Orthographic and Pictorial Views.”

   The first meeting of the combined subcommittees was held in April, 2010. During 2010, the chairman of SC3 began working with N. H. Smith, chairman of SC41, to determine if view-specific content in ASME Y14.41 should be moved into ASME Y14.3. The cooperative efforts between SC3 and SC41 resulted in movement of view-specific content from ASME Y14.41 into ASME Y14.3.

   ASME Y14.3 now includes requirements for orthographic and pictorial views, whether product definition is accom- plished by 2D drawing only, model only, or both. Generally, view requirements are applicable regardless of means of creation, but there are some specific requirements limited in applicability based on view creation method.

   This revision of ASME Y14.3 continues a transition to standardize view requirements that are compatible with CAD capabilities and common industry practices. The inclusion of CAD specific requirements was initiated in the development of ASME Y14.3-2003 as well as in the development of ASME Y14.41-2003. It is expected that in the future, the requirements in ASME Y14.3 will continue to move towards one set of requirements that are consist- ent regardless of view creation method. At this time, there are practices that are limited to constructed views or to model-based views. It is anticipated that future revisions of this Standard will continue to expand coverage of view requirements for CAD-created views with the constructed view conventions potentially being removed when there is no longer a need for them.

   Significant revisions include the following:

   1. reorganizing to include and advance the content of ASME Y14.3-2003, ASME Y14.4-1989(R2004), and applica- ble paragraphs and figures from ASME Y14.41-2012

   2. making view requirements based on CAD practices and capabilities more prevalent throughout the standard

   3. noting as such, requirements applicable to only constructed views , and excluding from constructed view prac- tices, the newer practices when applicable only to CAD-created views

In this Standard, anything identified as a requirement is mandatory. Compliance with requirements is not optional except where more than one method is provided in which case one of the options shall be used. Actions, drawing elements, or other items identified as practices are typical but are not required, except where those practices are expressed as requirements or specified as practices to be used.

The successful revision of this Standard is attributed to the commitment of the committee members and the sup- port of their sponsoring companies. The commitment of their time and contributed expertise are gratefully acknowl- edged. J.D. Keith, former chairman of ASME Y14 SC4, worked alongside with the SC3 chairman to keep the work on schedule and ensure that it was technically correct. N.H. Smith, chairman of ASME Y14 SC41, worked closely with the SC3 chairman to transition technical content from ASME Y14.41 to ASME Y14.3. L.F. Irwin served as a technical liaison between SC3 and SC41 to ensure the technical intent of the Y14.41 material was correctly merged into Y14.3.

R.H. Settle created the figures for this and the previous edition of ASME Y14.3. J.B. Burleigh, R.G. Campbell, R.R. Cruz, J.I. Miles, and A. Watts served as section leaders, each of whom worked to develop the first draft of one or more of the Sections.

It is our intention for future revisions of this Standard to continue moving us forward towards defining common practices that are applicable regardless of view creation methods. Interested parties are invited to contact ASME for involvement in future development efforts.

Suggestions for improvement of this Standard are welcome. They should be addressed to The American Society of Mechanical Engineers; Attn: Secretary, Y14 Standards Committee; Two Park Avenue; New York, NY 10016-5990.

This Standard was approved as an American National Standard on November 30, 2012.

vi

ASME Y14 COMMITTEE

Engineering Drawing and Related Documentation Practices

(The following is the roster of the Committee at the time of approval of this Standard.)

STANDARDS COMMITTEE OFFICERS

F. Bakos, Jr., Chair

W. A. Kaba, Vice Chair

C. J. Gomez, Secretary

STANDARDS COMMITTEE PERSONNEL

A. R. Anderson, Dimensional Dynamics, LLC E. F. McCarthy, Raytheon Missile Systems

F. Bakos, Jr., Consultant P. J. McCuistion, Ohio University

J. V. Burleigh, Consultant J. D. Meadows, James D. Meadows & Associates, Inc.

D. E. Day, Tec-Ease, Inc. M. E. Meloro, Northrop Grumman Corp.

K. Dobert, Siemens PLM H. W. Oakes, United States Air Force

C. J. Gomez, The American Society of Mechanical Engineers N. H. Smith, Spirit AeroSystems

B. A. Harding, Purdue University M. J. Stahl, Caterpillar, Inc.

D. H. Honsinger, Consultant N. Stern, United States Army

W. A. Kaba, Spirit AeroSystems R. G. Wilhelm, University of North Carolina

1. Krulikowski, Effective Training, Inc. B. A. Wilson, Boeing

   
   

   SUBCOMMITTEE 3 — ORTHOGRAPHIC AND PICTORIAL VIEWS

2. A. Wilson, Chair, Boeing J. D. Meadows, James D. Meadows & Associates, Inc.

J. V. Burleigh, Consultant J. I. Miles, Sr., Lockheed Martin Aeronautics Co.

R. G. Campbell, Harper College H. W. Oakes, United States Air Force

R. R. Cruz, GE Aviation R. H. Settle, Naval Surface Warfare Ctr/DD

L. G. Davis, Consultant M. J. Stahl, Caterpillar Inc.

R. D. Green, Boeing N