What is the classification of metal forming processes?

Metal forming processes are classified according to the effective stresses into forming under (i) compressive, (ii) a combination of tensile and compressive, (iii) tensile, (iv) bending, and (v) shearing conditions.

What are the four forming processes?

There are four types of forming processes: forging, rolling, extruding, and drawing.

What are the two types of forming?

Combined tensile and compressive forming

This category of forming processes involves those operations where the primary means of plastic deformation involves both tensile stresses and compressive loads.

What is meant by forming process?

Forming is a process in which the shape of a partly finished product, for example sheet metal, is changed using plastic deformation. During forming, force is applied to a piece of sheet metal to change its shape rather than remove any material.

What is a primary forming process?

Almost everything we touch in the world of technology has been created through some technique or process associated with primary forming – the forming of shapes with minimal waste and loss of volume. Without these primary forming processes, the technological world as we know it today would not exist.

What is metal forging process?

Metal forging is the process in which metals are formed and shaped using compressive forces. The forces are delivered using hammering, pressing, or rolling. There are a number of forging processes – cold forging, warm forging, and hot forging – which are classified by the temperature of the metal being worked with.

What is tensile forming processes?

Tensile Forming

A process where the primary means of deformation is multiaxial or uni- tensile stress. Expanding – The hollow parts circumference is increased by tangential loading. Recessing – Holes and depressions are formed by tensile loading.

What is hot working and cold working?

Hot Working is done at temperatures above the recrystallization temperature of the metal, and Cold Working is done at temperatures below the recrystallization temperature of the metal.

What are the important material properties in metal forming?

In metal forming, the material is deformed plastically to generate the shape of the desired product. The important property of a material in metal forming processes is plasticity. Plasticity: Plasticity is defined as the mechanical property of a material that retains the deformation produced under load permanently.

What is special forming process?

1.HYDRO FORMING PROCESS. In this process te pressure over the rubber membraneis controlled throughout the forming cycle, with maximum pressure upto- 100 Mpa. This procedure allows close control of the part during forming, to prevent wrinkling (or) tearing.

What is mechanical forming?

Forming is a mechanical process used in manufacturing industries wherein materials (mostly metals) undergo plastic deformations and acquire required shapes and sizes by application of suitable stresses such as compression, shear and tension.

What is the difference between hot forming and cold forming?

Cold forging improves the strength of the metal by hardening it at room temperature. Hot forging results in optimal yield strength, low hardness, and high ductility by hardening the metal at extremely high temperatures.

How many types of forming are there?

One is bulk-forming and the other is sheet metal forming. Bulk deformation refers to the use of raw materials for forming which have a low surface area to volume ratio. Rolling, forging, extrusion, and drawing are bulk forming processes.

Is casting a forming process?

In the metal casting process, metal shapes are formed by pouring molten metal into a mold cavity, where it is cooled and later extracted from the mold. Metal casting is arguably the earliest and most influential industrial process in history.