Manufacturing Processes- 2

Bhil Surendra sing

Basic Introduction• What is Manufacturing Process?→ The Tranforms raw materials in to different forms that went in to them different forms called Manufacturing. Process has different maeaning in different field as a verb process mean doing the things to material that will produce product.

* Manufacturing Process define as process of conversely raw material in to products encompass the design and manufacturing of good using verious method , techniques like man, Machine and Money

Importance Of Manufacturing

The term may refer to range of human activity, from handicraft to high tech,but is most commonly applied to industrial production in which raw material are transformed into finished goods on latge scale.

Such finished goods may be used for manufacturing. Product such as aircraft, household applieances, or sold to wholesalers, who in turn sell them to retailers.

Manufacturing takes turns under all types of economic systems. In free market economy, manufacturing is usually directed

toward the mass production of product for sale to consumers at a profit.

In mixed market economics, manufacturing occurs under some degree of government regulation.

Importance Of Manufacturing

The manufacturing sector is closely conneted with engineering and industrial design.

*Examples*- Examples of major manufactures in north america include general motors corp. General Electric, precicion cast parts.According to some economics , manufacturing is a

wealth-producing sector of economy, whereas a services sector tends to be wealth-consuming.

Manufacturing provides important material support for nation infrastructure and national defence.

Classification & Selection of the manufacturing process

1. Basically Used in engineering industries a) Change the physical properties of the work material b)Change the shape and size of work piece. c) Produce desired Dimensional accuracy and surface finish.2. Based on nature of work involved processes a) Casting process b) shearing & forming Processes c) Fabrication processes d) Joinning Processes e) Primary Metal Working Processes f) Machining Processes g) Surface finishing processes

Casting Processes• Casting is primary manufacturing processe in which a

solid is melted, heated to proper temp. and is then poured into cavity or mould, which contains it In the proper shape during Solidification.

• Choosing Casting: shaping such as machining, forging,welding,stamping,etc.

*Reason: Good bearing qualities . - strength and lightness in certain light metal alloys. - uniform properties from direction standpoint,

Casting process

Shearing and Forming Processes• Forming as is defined by DIN 8580 As manufacturing

through the three dimesional or plastic modification of a shape while retainning its mass and material structure.

• In contrast to deformation, forming is the modification of shape with controlled geometry.

• In this process the metal is heated to temp. below solidus temp. and at the same time large force is applied on the heated metals such that the metal flows perpendicular to the applied force and takes desired shapes.

Shearing and Forming Processes

Fabrication processes* Manufactured as single unit they are manufactured as different component are assembled to get product.• Joining processes are widely used in fabrication.• Example: welding, brazing, soldering, fastening,

press fitting.etc.• In these processes two or more pieces of metal

parts are joined together to product desired shape and size of the product.

Fabrication processes

Material Removal Processes* The processes of removing the undesired or unwanted material from work piece or job or component to product a required shape using cutting tools.