Branch: Mechanical-5C(1)

Collage: S.V.M.I.T.

1. KAMAL AKHTAR (120450119156)

Manufacturing process-2

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Introduction

Classification of manufacturing process

Classification based on Function of Process

Classification based on quantity of production

Selection of manufacturing process

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Classification Based On Function of

Process

Manufacturing process used in industry

basically performed following purpose…

Changed the physically properties of work piece.

Change the shape and size of the work piece.

Produced desired dimensional accuracy and

surface finish.

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Classification Based On Function of Process:

1) Process for changing Physical properties of

work piece.

2) Casting process

3) Primary metal working processes.

4) Shearing and Forming processes.

5) Joining processes.

6) Machining processes.

7) Surface finishing processes.

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Changing Physical

Properties Physical properties of material can be change by heat

treatment like1) Carbonizing

2) tempering

3) Hardening

By hammering, bending and cold rolling of iron materials and

nonferrous metals a strengthening of the metal structure is changed

systematically. This kind of heat treatment is used for making the

steels hard and wear-resistant for certain purposes.

4) Annealing

The hardness for an annealing process is usually listed on the HRB

scale as a maximum value. It is a process to refine grain size,

improve strength, remove residual stress and affect the

electromagnetic properties.

5) Stress relieving

is a technique to remove or reduce the internal stresses created in

a metal. Stress relieving is usually accomplished by heating a metal

below the lower critical temperature and then cooling uniformly.

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Casting Process

Casting processes basically involve the introduction of a

molten metal in to a mould cavity, where up on solidification,

the metal takes on the shape of the mould cavity.

Simple and complicated shapes can be made from any metal

that can be melted.

Example of cast parts : frames, structural parts, machine

components, engine blocks, valves, pipes, statues, ornamental

artefacts…..

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Joining Processes

In this process; two or more metals are joint to each other. Or

repair/join the broken parts.

The joints are may be permanent like welding OR may be

temporary like Riveting, brazing, soldering…

Joining process are…. Screw-Fastening

Welding

Riveting

Brazing

Soldering

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Machining Processes

Machining consist of forcing cutting tool with one or more edges

through the excess materials on a work piece and removing this

excess material in the form of chip.

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Surface Finishing

Processes Surface finishing process are used ensure a smooth surface, to improve

appearance or to provided a protective coating.

Some of process are like honing and lapping are remove the unwanted

material, there primary aim is to produces a good surface finish.

Surface finishing operations are as followed…1) Polishing

2) Honing

3) buffing

4) Barrel Tumbling

5) Lapping

6) electroplating

7) Abrasive belt grinding

8) Inorganic coating

9) Anodizing

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Thank You

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