MANUFACTURING PROCESSES

PRESENTED BY:GAURI BHARGAVAKUNALBHASINNAYANA MAHAJANNAVNEET KUMARHARSHIT SINGHNISHANT NAGDA

Manufacturing Process definition:

Manufacturing processes are the steps through which raw materials are transformed into a final product. The manufacturing process begins with the creation of the materials from which the design is made. These materials are then modified through manufacturing processes to become the required part.

FORMING MANUFACTURING PROCESS

Forming, or metal forming, is the metalworking process of fashioning metal parts and objects through mechanical deformation; the work piece is reshaped without adding or removing material, and its mass remains unchanged.

CHARACTERISTICS:

Large, heavy and expensive machinery is required. Production runs with many parts and steps.

FORMING PROCESSES

FORMING

COMPRESSIVE TENSILE BENDING SHEARING

COMPRESSIVE FORMING

It involves those processes where the primary means of plastic deformation is done. It includes the following processes:

ROLLING

EXTRUSION

The material is passed through a pair of rollers.

The material is forced through an orifice.

DIE FORMING

FORGING

Where the material is stamped by a press around or onto a die.

Where the material is shaped by localized compressive forces

TENSILE FORMING

Tensile forming involves those processes where raw material is extended to a point till it fractures.

EXPANDING

STRETCHING

Where the tensile load is applied along the longitudinal axis of the work piece.

Where the circumference of a hollow body is increased.

COMBINED TENSILE AND COMPRESSIVE FORMING

This category of forming processes involves those operations where it involves both tensile stresses and compressive loads.

DEEP DRAWING

A flat sheet metal blank is formed into a hollow body open on one side or a hollow body is formed into a hollow body with a smaller cross-section.

METAL SPINNING

FLANGE

Basically a metal disk or cylinder is rotated at high speed by using specially designed tool through which symmetric product are formed.

It is a process of producing protruding rim, edge, rib, or collar, as on a wheel or a pipe shaft, used to strengthen an object, hold it in place, or attach it to another object.

BENDING

Bending is a manufacturing process that produces a V-shape, U-shape, or channel shape. Similar to other forming processes it does not cause any change in the volume of the material.

Usually this sheet metal bending process can be carried out cold but may require to heat the metal sometimes.

SHEARING

When a great enough shearing force is applied, the tensile stress in the material will exceed the ultimate strength and the material will fail and separate at the cut location.

Shearing is also known as die cutting and cuts the stock without the formation of chips or the use of burning or melting. The process can be performed manually or through electric power.