GB/T 4458.1-2002Mechanical drawings -- General principles of presentation -- Views (English PDF)

Foreword

This Part is one of the series national standards of Mechanical Drawings – General Principle

of Presentation. The projected structure of these national standards, their corresponding

national standards, and the national standards they replace are listed as follows.

--- GB/T 4457.4-2002 Mechanical Drawings - General Principles of Presentation – Lines

(ISO 128-24, replacing GB/T 4457.4-1984)

--- GB/T 4458.1-2002 Mechanical Drawings - General Principles of Presentation – Views

(ISO 128-34, replacing GB/T 4458.1-1984)

--- GB/T 4458.6-2002 Mechanical Drawings - General Principles of Presentation – Sections

(ISO 128-44, replacing GB/T 4458.1-1984 [Translator Note. here it shall be GB/T

4458.6-1984])

This Part corresponds to ISO 128-34.2001 Technical Drawings – General Principles of

Presentation – Part 34.Views on Mechanical Engineering Drawings (English Version). This

Part is modified and adopted by the consistency degree with ISO 128-34.2001, with the main

differences as follows.

--- Add a new Clause 4 Basic Requirements; and include relevant content into the

description of this Clause;

--- Supplement and improve the relevant content of 5.7 "Partial Enlarged Views";

--- Rearrange the clauses and subclauses of the standard.

This Part replace the content related to "view drawing" in GB/T 4458.1-1984 Mechanical

Drawings - Representation of Drawings.

Compared with GB/T 4458.1-1984, the major changes of this Part are as follows.

--- The basic representation methods for "basic views," "directional views," and "oblique

views" are detailed in GB/T 17451-1998 Technical Drawing – General Principles of

Presentation - Views; and this Part only provides note date references and supplements;

--- Delete the "rotate views";

--- Add the format of partial views using third-angle projection;

--- Mark the line types for drawing;

--- Imagine intersection lines have been changed from thick solid lines to thin solid lines

(01.1 line type);

Mechanical Drawings – General Principes of Presentation –

Views

1 Scope

This Part specifies the methods of view representation.

This Part applies to technical drawings created in mechanical drawing using orthographic

projection (see GB/T 14692).

Unless otherwise specified, the drawing methods specified in this Part are first-angle

projections.

2 Normative References

The provisions in following documents become the provisions of this Part through reference in

this Party of GB/T 4458.For dated references, the subsequent amendments (excluding

corrigendum) or revisions do not apply to this Part, however, parties who reach an agreement

based on this Part are encouraged to study if the latest versions of these documents are

applicable. For undated references, the latest edition of the referenced document applies.

GB/T 4458.4 Mechanical drawings – Dimensioning (neq ISO 129)

GB/T 10609.4 Technical drawings - Requirements for microcopying (neq ISO 6428)

GB/T 13361 Technical drawings - General terms (neq ISO 10209-1)

GB/T 14692 Technical drawings - Projection methods (neq ISO 5456)

GB/T 16675.1 Technical drawings - Simplified representation - Part 1.Pictorial

presentation

GB/T 16948 Technical product documentation - Vocabulary - Terms relating to projection

methods (eqv ISO 10209-2)

GB/T 17450 Technical drawings - Basic conventions for lines (idt ISO 128-20)

GB/T 17451-1998 Technical drawings - General principles of presentation - Views

GB/T 4457.4-2002 Mechanical drawings - General principles of presentation – Lines (ISO

128-24, Technical drawing – General principles of presentation – Part 24.Lines on

mechanical engineering drawing, MOD)

3 Terms and Definitions

For the purposes of this Document, the terms and definitions given in GB/T 13361 and GB/T

16948 apply.

4 Basic Requirements

5 Representation Methods of the View