Seminar Presentation

on

Liquid Metal Forging

Prepared by

SUNIL RATHOD (MM15M12)

Contents

1. Introduction

2. Classification of Forging processes

3. Various Forging Operations

4. Effect of forging on microstructure

5. Outline of Forging and Related Operations

6. Advantages & Disadvantages of Forging

7. Applications

8. References

Introduction

What Is Forging ?

What Is Liquid Metal Forging ?

Classification of Forging processes

By equipment

1) Forging hammer or drop hammer

2) Press forging

By process

1) Open Die Forgings or Hand forgings

2) Closed - die forging or Impression Die Forgings

Open Die Forgings or Hand forgings

•Is the simplest forging process

•In open die forging, the metal is compressed by repeated

blows by a mechanical hammer and shape is manipulated

manually.

Closed - die forging or Impression Die Forgings

•In closed die forging, the desired configuration is obtained

by squeezing the workpiece between two shaped and closed

dies.

Various Forging Operations

Coining•Closed-die forging process

•Very high pressure required

•No lubricants

Heading•Upset forging

•Nails, bolt heads, etc.

Piercing•Indenting the surface

•Pressure required is

approximately that of hardness

test

Hubbing

Various Forging Operations

Effect of forging on microstructure

•The formation of a grain structure in forged parts is

elongated in the direction of the deformation.

Orientation of Grains

Castings Forgings

Cast structure Fibre structure in forged steels

Flow lines in Forging

Forging a rod, Fullering and Edging

a) Stages in forging a connecting rod for an internal combustion

engine

b) Fullering

c) Edging operations to properly distribute the material when

preshaping the blanck for forging

Outline of Forging and Related Operations

Advantages of Forging

•Hardness and Ductility

•Grain Flow

•Intricate Shapes

Disadvantages of Forging

•High Temperature

•Cost

•Tolerances

•Maintenance

Forged components for automotive applications

References

1) Liquid forging processing of automobile wheels

V.G. Trifonov, G.R. Khalikova

2)Production Technology By ACE engg. Academy

3)Forging and Extrusion Processes by Dr. N S Mahesh

4) https://www.google.co.in/#q=liquid+metalforging

Thank YOu