ASME Y14.8 2022

$98.04

ASME Y14.8 – 2022 – Castings, Forgings, and Molded Parts

Published By	Publication Date	Number of Pages
ASME	2022	66

Guaranteed Safe Checkout

Category: ASME

If you have any questions, feel free to reach out to our online customer service team by clicking on the bottom right corner. We’re here to assist you 24/7.
Email:[email protected]

Description

This Standard covers definitions of terms and features unique to casting, forging, and molded-part technologies with recommendations for their uniform specification on engineering drawings and related documents. Castings, forgings, and molded parts are delineated as “part” or “parts” throughout the Standard. ASME Y14.8-2022 is a replacement of ASME Y14.8-2009.

PDF Catalog

PDF Pages	PDF Title
4	CONTENTS
7	FOREWORD
8	ASME Y14 COMMITTEE ROSTER
9	CORRESPONDENCE WITH THE Y14 COMMITTEE
10	Section 1 Scope 1.1 GENERAL 1.2 DIMENSIONING AND TOLERANCING 1.3 ASME Y14 SERIES CONVENTIONS 1.3.1 Mandatory, Recommended, Guidance, and Optional Words 1.3.2 Cross-Reference of Standards 1.3.3 Invocation of Referenced Standards
11	1.3.4 Definitions 1.3.5 Parentheses Following a Definition 1.3.6 Notes 1.3.7 Acronyms and Abbreviations 1.3.8 Units 1.3.9 Figures 1.3.10 Precedence of Standards 1.3.11 Use of an ASME Y14 Case 1.3.12 Product Definition Without Reference to a Standard
12	Section 2 References
13	Section 3 Definitions 3.1 DEFINITIONS 3.1.1 Casting 3.1.2 Corner Radius 3.1.3 Die 3.1.4 Die Closure 3.1.5 Draft 3.1.6 Drawing 3.1.7 Fillet Radius 3.1.8 Flash 3.1.9 Flash Extension 3.1.10 Forging
14	3.1.11 Forging Plane 3.1.12 Full Feature Axis 3.1.13 Full Feature Center Plane 3.1.14 Gate 3.1.15 Grain Direction 3.1.16 Grain Flow 3.1.17 Match Draft 3.1.18 Mismatch 3.1.19 Mold 3.1.20 Mold Line 3.1.21 Mold Line Center Line 3.1.22 Mold Line Center Point 3.1.23 Parting Line 3.1.24 Parting Plane 3.1.25 Parting Surface 3.1.26 Pattern 3.1.27 Riser 3.1.28 Riser Stub 3.1.29 Round 3.1.30 Scale 3.1.31 Sink
15	3.1.32 Vent Marks 3.1.33 Wall 3.1.34 Wall Thickness Figures Figure 3-1 Fillet and Corner Radius Figure 3-2 Fillet and Corner Radii
16	Section 4 Drawing Presentation Methods 4.1 GENERAL 4.2 SEPARATE REQUIREMENTS DRAWING METHOD 4.3 COMBINED REQUIREMENTS DRAWING METHOD
17	Figure 4-1 Separate Drawing Method — Casting, Forging, and Molding Requirements
18	Figure 4-2 Combined Drawing Method
19	Section 5 Drawing Practices 5.1 GENERAL 5.2 AS-CAST, AS-FORGED, AND AS-MOLDED SURFACES 5.3 CORNER AND FILLET RADII 5.4 DRAFT 5.4.1 Methods for Specifying Dimensions Affected by Draft 5.4.2 Match Draft 5.5 FLASH EXTENSION 5.6 EJECTOR PIN DEPRESSIONS OR PROTRUSIONS
20	5.7 MOLD LINE DIMENSIONS AND TOLERANCES 5.7.1 Circular Mold Line 5.7.2 Parallel Line Elements at a Mold Line 5.8 FULL FEATURE MODIFIER 5.9 DIE CLOSURE 5.10 SURFACE IRREGULARITIES CAUSED BY MANUFACTURING PROCESSES 5.11 ORIENTATION OF FORGING PLANE 5.12 MARKING 5.13 MISMATCH 5.14 PARTING LINES 5.14.1 All Around This Side of Parting Line
21	5.14.2 All Over This Side of Parting Line 5.15 SHARP CORNERS 5.16 GRAIN DIRECTION 5.17 PRODUCT DEFINITION DATA REQUIREMENTS 5.17.1 3D Model 5.17.2 Controlling Document 5.17.3 Concurrent Engineering 5.18 WALL THICKNESS AS A REFINEMENT OF PROFILE OF A SURFACE
22	Figure 5-1 Draft Angle Figure 5-2 Datum Plane and Forging Plane
23	Figure 5-3 Drafted Surfaces Controlled With Profile of a Surface Figure 5-4 Draft Adds Material
24	Figure 5-5 Draft Reduces Material
25	Figure 5-6 “DFT INCL” Example Figure 5-7 Size at Specific Locations for a Drafted Feature
26	Figure 5-8 “+DFT” Example
27	Figure 5-9 “−DFT” Example Figure 5-10 Match Draft
28	Figure 5-11 Flash Extension Figure 5-12 Boss Circular Mold Line and Mold Line Center Point
29	Figure 5-13 Hole Circular Mold Line and Mold Line Center Point
30	Figure 5-14 Use of Full Feature Modifier
33	Figure 5-15 Die Closure
34	Figure 5-16 Mismatch
35	Figure 5-17 Parting Line Locations Figure 5-18 Parting Line Symbol Application
36	Figure 5-19 All Around This Side of Parting Line Symbol Application Figure 5-20 All Around This Side of Parting Line
37	Figure 5-21 All Over This Side of Parting Line Symbol Application Figure 5-22 All Over This Side of Parting Line Figure 5-23 Grain Direction Specified
38	Figure 5-24 Profile Refined by Wall Thickness
39	Section 6 Datum Referencing 6.1 GENERAL 6.2 DATUM TARGETS 6.2.1 Datum Target Location 6.2.2 Effect of Draft and Parting Lines 6.2.3 Placement of Local Dimensions 6.3 MACHINED DATUM FEATURES 6.3.1 Machined Datum Reference Frame 6.3.2 Machined Datum Reference Frame Established With Optimization of Material 6.4 EQUALIZING DATUMS
40	6.4.1 Movable Target Simulators 6.5 DATUM TARGETS AND PROFILE TOLERANCING
41	Figure 6-1 Datum Targets Establishing a Datum Reference Frame
42	Figure 6-2 Datum Targets Within the Same Die Segment
43	Figure 6-3 Equalizing Datums
44	Figure 6-4 Optimum Location of Equalizing Datum Targets Figure 6-5 Datum Targets Located Opposite Machined Surfaces
45	Figure 6-6 Datum Targets Offset From the Datum Plane
46	Figure 6-7 Effect of Draft and Parting Line on Datums
47	Figure 6-8 Placement of Local Dimensions Affected by Draft
48	Figure 6-9 Machined Datum Features Located From Cast, Forged, or Molded Datum Features Figure 6-10 Machine Centers Establishing a Datum Axis
49	Figure 6-11 Movable Datum Target Simulators Establishing a Datum Center Plane
50	Figure 6-12 Movable Datum Target Simulators Establishing Two Datum Center Planes
51	Figure 6-13 Equalized Datums Established by Fixed Datum Target Simulators
52	Figure 6-14 Datum Targets and Profile Tolerancing
53	Section 7 Drawing Notes and Items 7.1 GENERAL 7.2 DRAWING ITEMS 7.3 SAMPLE GENERAL NOTES
54	7.4 SAMPLE LOCAL NOTES
55	NONMANDATORY APPENDIX A GLOSSARY OF CASTING, FORGING, AND MOLDED-PART TERMS A-1 GENERAL A-2 CASTING TERMS
56	A-3 FORGING TERMS A-4 MOLDED-PART TERMS
57	NONMANDATORY APPENDIX B SAMPLE DRAWINGS B-1 PRINCIPLES OF DIMENSIONING B-2 GENERAL NOTES ON FIGURES
58	Figure B-1 Sample Molded-Part Drawing
59	Figure B-2 Sample Die-Cast Part Drawing
60	Figure C-1 Form and Proportion of Symbols NONMANDATORY APPENDIX C FORM AND PROPORTION OF SYMBOLS C-1 GENERAL C-2 FORM AND PROPORTION
61	Figure D-1 Movable Target Symbol NONMANDATORY APPENDIX D FORMER PRACTICES D-1 GENERAL D-2 MOVABLE TARGET SYMBOL DEFINITION REMOVED D-3 END-ITEM DRAWING METHOD REMOVED
62	Figure D-2 End-Item Method