these technique for the process of metal

1. Metal processing Techniques
Presented To: Dr.Nida Iqbal
Presented By: 2017-BME-06
2017-BME-14
2017-BME-18
2017-BME-26
2017-BME-40
2017-BME-49

2. Introduction
Practically all metals, which are not used in cast form are
reduced to some standard shapes for subsequent processing.
Processing of metal in solid sates can be divided into two stages
1. Raw material
2. Shape of material

3. Raw Materials for Metal Processing
Raw materials for metal processing can be in different forms like
it can be in the form of liquid or in the form of powder or in the
form of solid or semi solid.

4. Important Processing Techniques
• Powder Manufacturing
• Powder metallurgy process
• Blending and Mixing
• Compaction
• Isostatic Pressing
• Injection Molding
• Powder Rolling
• Powder Extraction
• Partical Shape

5. Metal Processing Techniques
• Metal processing techniques are divided into two stages:
1) Raw Material Processes
2) Shape Processing
 Raw Material Processing are important because through
these processes we made the material to be used further for
different purposes(Raw Material Process)
 Shape processing we take the metal and give it a proper
shape which we require.

6. Powder Manufacturing
Powder manufacturing process includes following
methods
1. Distribution of raw material
2. Pre-mixing of raw material
3. Extrusion (mixing of melted raw matrial)
4. Cooling and Crushing the extruders
5. Grinding, classifying, and packing

7. Compaction
Powder compaction is the
process of compcating metal
powder in a die through the
aplication of high pressures.
Density of the compacted
powder increases with the
amount of pressure applied.

8. Metal Rolling
• Rolling is a metal forming process in which metal stock is passed
through one or more pairs of rolls to reduce the thickness and to
make the thickness uniform.
• Rolling is classified according to the temperature of the metal
rolled. If the temperature of the metal is above
its recrystallization temperature, then the process is known as hot
rolling.
• If the temperature of the metal is below its recrystallization
temperature, the process is known as cold rolling.

9. Injection Molding
Metal injection molding is a process in which finely powdered
metal is mixed with binder material to create a feedstock.
Feedstock is then shaped and solidfied using injection molding.
The molding process allows high volume,complex parts to be
shaped in a single step.

10. Injection Molding

11. Partical Shape
The shape or structure of particles is a major factor in a
powder processing operation.
Material and method of powder production are the main
varible determining powder shape.
Particle shape plays a large role in powder density and flow
charactristics.

12. Shapes of Particle

13. Forging
Forging is a manufacturing process involving the shaping of metal using
localized compressive forces. The blows are delivered with a hammer or
a die.
Forging is often classified according to the temperature at which it is
performed.
1. Cold forging
2. Warm forging
3. Hot forging.

14. Finishing Processes
Finally at the end finishing processes are employed
through which we can protect our metal from corrosion,
oxidation or deformation and also to provide specific
surface characteristics such as reflectivity, electrical
conductivity or insulation, or bearing properties and also
to give the special decorative effects to materials.

15. THANKS YOU