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ASME Y14.8 - 2022 - Castings, Forgings, and Molded Parts, 2022
- CONTENTS
- FOREWORD
- ASME Y14 COMMITTEE ROSTER
- CORRESPONDENCE WITH THE Y14 COMMITTEE
- Section 1 Scope [Go to Page]
- 1.1 GENERAL
- 1.2 DIMENSIONING AND TOLERANCING
- 1.3 ASME Y14 SERIES CONVENTIONS [Go to Page]
- 1.3.1 Mandatory, Recommended, Guidance, and Optional Words
- 1.3.2 Cross-Reference of Standards
- 1.3.3 Invocation of Referenced Standards
- 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
- Section 2 References
- Section 3 Definitions [Go to Page]
- 3.1 DEFINITIONS [Go to Page]
- 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
- 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
- 3.1.32 Vent Marks
- 3.1.33 Wall
- 3.1.34 Wall Thickness
- Section 4 Drawing Presentation Methods [Go to Page]
- 4.1 GENERAL
- 4.2 SEPARATE REQUIREMENTS DRAWING METHOD
- 4.3 COMBINED REQUIREMENTS DRAWING METHOD
- Section 5 Drawing Practices [Go to Page]
- 5.1 GENERAL
- 5.2 AS-CAST, AS-FORGED, AND AS-MOLDED SURFACES
- 5.3 CORNER AND FILLET RADII
- 5.4 DRAFT [Go to Page]
- 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
- 5.7 MOLD LINE DIMENSIONS AND TOLERANCES [Go to Page]
- 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 [Go to Page]
- 5.14.1 All Around This Side of Parting Line
- 5.14.2 All Over This Side of Parting Line
- 5.15 SHARP CORNERS
- 5.16 GRAIN DIRECTION
- 5.17 PRODUCT DEFINITION DATA REQUIREMENTS [Go to Page]
- 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
- Section 6 Datum Referencing [Go to Page]
- 6.1 GENERAL
- 6.2 DATUM TARGETS [Go to Page]
- 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 [Go to Page]
- 6.3.1 Machined Datum Reference Frame
- 6.3.2 Machined Datum Reference Frame Established With Optimization of Material
- 6.4 EQUALIZING DATUMS [Go to Page]
- 6.4.1 Movable Target Simulators
- 6.5 DATUM TARGETS AND PROFILE TOLERANCING
- Section 7 Drawing Notes and Items [Go to Page]
- 7.1 GENERAL
- 7.2 DRAWING ITEMS
- 7.3 SAMPLE GENERAL NOTES
- 7.4 SAMPLE LOCAL NOTES
- Figures [Go to Page]
- Figure 3-1 Fillet and Corner Radius
- Figure 3-2 Fillet and Corner Radii
- Figure 4-1 Separate Drawing Method — Casting, Forging, and Molding Requirements
- Figure 4-2 Combined Drawing Method
- Figure 5-1 Draft Angle
- Figure 5-2 Datum Plane and Forging Plane
- Figure 5-3 Drafted Surfaces Controlled With Profile of a Surface
- Figure 5-4 Draft Adds Material
- Figure 5-5 Draft Reduces Material
- Figure 5-6 “DFT INCL” Example
- Figure 5-7 Size at Specific Locations for a Drafted Feature
- Figure 5-8 “+DFT” Example
- Figure 5-9 “−DFT” Example
- Figure 5-10 Match Draft
- Figure 5-11 Flash Extension
- Figure 5-12 Boss Circular Mold Line and Mold Line Center Point
- Figure 5-13 Hole Circular Mold Line and Mold Line Center Point
- Figure 5-14 Use of Full Feature Modifier
- Figure 5-15 Die Closure
- Figure 5-16 Mismatch
- Figure 5-17 Parting Line Locations
- Figure 5-18 Parting Line Symbol Application
- Figure 5-19 All Around This Side of Parting Line Symbol Application
- Figure 5-20 All Around This Side of Parting Line
- 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
- Figure 5-24 Profile Refined by Wall Thickness
- Figure 6-1 Datum Targets Establishing a Datum Reference Frame
- Figure 6-2 Datum Targets Within the Same Die Segment
- Figure 6-3 Equalizing Datums
- Figure 6-4 Optimum Location of Equalizing Datum Targets
- Figure 6-5 Datum Targets Located Opposite Machined Surfaces
- Figure 6-6 Datum Targets Offset From the Datum Plane
- Figure 6-7 Effect of Draft and Parting Line on Datums
- Figure 6-8 Placement of Local Dimensions Affected by Draft
- Figure 6-9 Machined Datum Features Located From Cast, Forged, or Molded Datum Features
- Figure 6-10 Machine Centers Establishing a Datum Axis
- Figure 6-11 Movable Datum Target Simulators Establishing a Datum Center Plane
- Figure 6-12 Movable Datum Target Simulators Establishing Two Datum Center Planes
- Figure 6-13 Equalized Datums Established by Fixed Datum Target Simulators
- Figure 6-14 Datum Targets and Profile Tolerancing
- Figure B-1 Sample Molded-Part Drawing
- Figure B-2 Sample Die-Cast Part Drawing
- Figure C-1 Form and Proportion of Symbols
- Figure D-1 Movable Target Symbol
- Figure D-2 End-Item Method
- NONMANDATORY APPENDIX A GLOSSARY OF CASTING, FORGING, AND MOLDED-PART TERMS [Go to Page]
- A-1 GENERAL
- A-2 CASTING TERMS
- A-3 FORGING TERMS
- A-4 MOLDED-PART TERMS
- NONMANDATORY APPENDIX B SAMPLE DRAWINGS [Go to Page]
- B-1 PRINCIPLES OF DIMENSIONING
- B-2 GENERAL NOTES ON FIGURES
- NONMANDATORY APPENDIX C FORM AND PROPORTION OF SYMBOLS [Go to Page]
- C-1 GENERAL
- C-2 FORM AND PROPORTION
- NONMANDATORY APPENDIX D FORMER PRACTICES [Go to Page]
- D-1 GENERAL
- D-2 MOVABLE TARGET SYMBOL DEFINITION REMOVED
- D-3 END-ITEM DRAWING METHOD REMOVED [Go to Page]
