Engineering course 2 (MCL-102)

Course Objective...

Introduce fundamental concepts in Manufacturing Engineering

You will learn about:Materials and their propertiesMetal forming processMachining processWeldingCasting

This course will help you to:

• To know about materials.• Use materials properly.• To know about manufacturing.• To know about manufacturing industry.• Role of a manufacturing engineer.

Evaluation scheme:AttendanceAssignmentsTutorialsMid termLab work

IntroductionWhat is manufacturing ? what are manufacturing processes?Why should we know about it?

Requirement of manufacturing:• Need of a human being• Ideas• Design• Selection of a manufacturing process• Man , machinery, manufacturing process• Product• Fulfillment of need

example1

Example 2

example3

Example 4

example5

Manufacturing:Manufacturing can be defined as the

transformation of materials and information into goods for the satisfaction of human needs.

It can be considered as a system in which product design is the initial stage, and the delivery of finished products to the market is the final output.

Manufacturing process:Manufacturing process alter the form, shape

and/or physical properties of a given material.Manufacturing system are the combination of

manufacturing equipment and human bounds by a common material and information flow.

Manufacturing equipment is used to perform manufatuing processes.

Classification of manufacturing processes:Forming processMaterial removing processJoining process

Forming process: Metal forming can be defined as a process in

which the desired size and shape are obtained through the deformation of metals plastically under the action of externally forces.

o Forging o Rollingo Extrusiono drawing

Machining process:It’s metal removing processes. Shape is

found by removing metal.

Joining process:Unite individual work pieces to make

subassemblies or final products.

Manufacturing attributes:There are four attributes for decision making

for manufacturing system.• Cost• Time• Quality• flexibility

Importance of manufacturing:• A manufactured item has undergone a

number of changes during which a raw material become a useful product, it has added value, defined as monetary worth in terms of price.

• A manufacturing industry is the backbone for its nation’s economy.

• Provide employment.• Fulfillment of need of human being

Applications of manufacturing:Transportationa)Automobile industryb)Aeronautical industryc)Locomotivesd)Roads• Construction• Agriculture• Food and beverage• Electronics industry

Medical industrySteel industryTextile industryHeavy electrical industry

Role of manufacturing Engineer• To bring the ideas and design into reality by

proper selection of material, machine and manufacturing process.

• It is desirable for him to have thorough knowledge of material sciences, design, and manufacturing processes.

• To keep the production competitive he must select optimum tools and machines.

• To visualize the production likely to be encountered in production.

Reference books: Manufacturing Science by kalpak JianManufacturing process by H.S. BawaProduction Technology by R.K. Jain