This standard specifies general tolerances for dimension, shape and position of cutting parts, cold stamping parts, pipe bending parts, weldment and plastic compression parts. It is applicable to dimensions and elements without special function requirements.
It is not applicable to the followings:
a) reference dimensions;
b) combination dimension which will no longer be processed after assembly;
c) not indicated 90° angle formed by lines or faces of the basic system;
d) extrusion, blow molding, sintering, foam or plastics products;
e) where it is specified in a special standard and indicated in the drawing or the document.
2 Normative references
The following standards contain provision which, through reference in this standard, constitute provisions of this standard. At time of publication, the editions indicated were valid. All standards are subject to revision, and all parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below.
GB/T 1800.1-1997 Limits and fits - Bases - Part 1: Terminology
3 Definitions
For the purposes of this standard, the following definitions apply.
The definitions of hole and shaft are in accordance with GB/T 1800.1.
Foreword i 1 Scope 2 Normative references 3 Definitions 4 General 5 Cutting parts 6 Cold stamping parts 7 Pipe bending parts 8 Weldment 9 Plastic compression parts
1 Scope
This standard specifies general tolerances for dimension, shape and position of cutting parts, cold stamping parts, pipe bending parts, weldment and plastic compression parts. It is applicable to dimensions and elements without special function requirements.
It is not applicable to the followings:
a) reference dimensions;
b) combination dimension which will no longer be processed after assembly;
c) not indicated 90° angle formed by lines or faces of the basic system;
d) extrusion, blow molding, sintering, foam or plastics products;
e) where it is specified in a special standard and indicated in the drawing or the document.
2 Normative references
The following standards contain provision which, through reference in this standard, constitute provisions of this standard. At time of publication, the editions indicated were valid. All standards are subject to revision, and all parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below.
GB/T 1800.1-1997 Limits and fits - Bases - Part 1: Terminology
3 Definitions
For the purposes of this standard, the following definitions apply.
The definitions of hole and shaft are in accordance with GB/T 1800.1.
Contents of HB 5800-1999
Foreword i
1 Scope
2 Normative references
3 Definitions
4 General
5 Cutting parts
6 Cold stamping parts
7 Pipe bending parts
8 Weldment
9 Plastic compression parts
