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FDM 15-1995 Aluminum Forging Design Manual

Standard Number:  FDM 15-1995
Title:  Aluminum Forging Design Manual
Language:  English
Status:  Current
Publisher:  Other Standards
Price:  
Number of Pages:64  

Description:Defines a combination of high strength with light weight - outstanding properties of aluminum alloy forgings - with a rapidly expanding range of applications. Noted for its ease with which unusual shapes and extremely large components with excellent mechanical properties can be obtained.  
Catalog:I INTRODUCTION
II DIE FORGING DESIGN
Hand Forgings
Die Forgings
Die Forging Types
Blocker-Type Forgings
Finish Only Forgings
Conventional Forgings
Precision Forgings
Can and Tube Forgings
No-Draft Forgings
Basic Design Features
Parting Line
Parting Line Effect on Grain Flow
Webs at Different Levels
Parting Line Can Modify Forging Design
Die Side Thrust
Normal to Forging Plane
Intersection of Parting Line and Forging Plane
Draft Angles
Standard Draft Angles
Draft on Cylindrical Ends
Matching Parting Line Contours
Constant Draft Angles for Best Die Economy
Some Undercuts - Or Back Drafts - Are Possible
Corner Radii
Minimum Corner Radii
Recommended Corner Radii
Constant Corner Radii Reduce Die Costs
Larger Radii at Rib Ends
Sharp Corner Radii Cause Premature Die Failure
Fillet Radii
Minimum Fillet Radii
Recommended Fillet Radii
Where to Blend Fillet Radii
Larger Fillets at Intersections Less Than 90 degrees
Large Fillets Prevent Flow-Throughs
No Inside Intersection Radius in Plan View Smaller Than Fillet Radius
Minimum Web Thickness
Effect of Thin Webs
Web Tapers or Punchouts Beneficial
Die Deflection
Pockets and Recesses
"Bathtub" Sections
Punchouts
Recessing Bosses to Aid Coining Operation
Double Forgings
Symmetrical Forgings
Can- and Tube-Type Forgings
No-Draft Forgings
Stress Relieval
Non-Destructive Tests
Liquid Penetrant Inspection
Ultrasonic Test or Inspection (USI)
Electrical Conductivity (E.C.)
Hardness Test (Brinell)
Dimensional Inspection
Visual Inspection
Destructive Tests
Tension Tests
Fracture Toughness Plane Strain Fracture Toughness Test
Stress-Corrosion Cracking Test
Fatigue Test
Spectrographic Chemical Analysis
Metallographical Inspection
Grain Flow Inspection
Impact Test
Residual Stress Analysis
III TOLERANCE FOR DIE FORGINGS
Process Variables Influencing Dimensional Accuracy
Recommended Die Forging Tolerances
Die-Closure Tolerances
Dimensional Tolerances
Step Tolerances
Coining Tolerances
Match Tolerances
Straightness Tolerances
Methods and Procedures for Checking Straightness
Contour Checking
Flash Extension Tolerances
Negative Trim
Trimmed Surfaces
Draft Angle Tolerances
Knockouts
Vent Marks
Surface Roughness
Tooling Points or Datum Targets Shown on Drawings
Finish Allowances for Machining
Initial Machining Setup
Small Forgings
Large Forgings
Additional Tolerances
Out-of-Round Tolerances
Concentricity Tolerances
Squareness Tolerances
Flatness Tolerances
Break All Sharp Edges
IV FORGING DRAFTING CONVENTIONS
Full Scale
Simplified Drawing Practice
Plan View Lines Shown as Intersecting Planes
Dimensions to Points of Intersection
Decimal Dimensions
Good Dimensioning Practice
Target Points on Drawings
Avoid Chain Dimensioning
Reference Dimensions
Variables with Differing Dimensional Methods
Combined Tolerance on Side Walls
Designate Forging Plane When Parting Line Is Irregular
Uniform Draft Indicated by Concentric Radii
Dimensioning Bosses Inclined to Forging Plane
Dimensioning Acut Angle Intersections
How to Show Intersections of Webs and Tapered Ribs
Dimension Plan-View Radii at Inside Intersections
Various Methods of Incorporating Fillet Radii at Rib Intersections
Dimensioning an Offset in Plan View
Dimensioning Shallow Steps Between Two Surfaces
Deviation from Normal Dimensioning
Draft Projections at Rib Ends with Large Radii
Draft Projections on Tapered Webs
Pads Added at Parting Line
Match Marks
Vent and Knockout Marks
Types of Identification Characters on Forgings
Kinds of Identification
Contours Defined by Ordinates
Outside Corner Radii in Plan View
Dimensioning in Crowded Areas
Engineering Terms
V MATERIALS AND PROPERTIES
VI CAD/CAM/CAE APPLICATIONS IN FORGING & MANUFACTURING  
File Format:  PDF(Acrobat Reader) or Word version doc Document
File Size:  382KB
Tile in English:  Aluminum Forging Design Manual

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