Manufacturing Processes: Unit III: Bulk Deformation Processes

Principle of Drawing

Deformation Processes

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The process which is used to reduce the cross section of metal is called drawing.

PRINCIPLE OF DRAWING

The process which is used to reduce the cross section of metal is called drawing. It is normally a cold working process in which the material to be drawn is pulled through a tapered hole in a die as shown in Figure 3.59. However, it may be performed at elevated temperature to hot work large wires, rods or hollow sections in order to reduce forces. This drawing process requires very high force to pull the metal through the die. Drawing process primarily uses tensile forces to stretch the metal but compression also plays a significant role since the metal is squeezed as it passes through die opening.

Applications of drawing:

1. It is very much useful to produce round, rectangular, square and hexagonal shapes.

2. Electrical wire and wire frame structures are made with this process.

3. It is useful to make the hydraulic systems of vehicles and industrial machineries.

Manufacturing Processes: Unit III: Bulk Deformation Processes : Tag: : Deformation Processes - Principle of Drawing

Home | Department: Mech Department | Subject: Manufacturing Processes |

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Manufacturing Processes: Unit III: Bulk Deformation Processes

Metal Forming Processes - Introduction

Hot working and cold working of metals - Working Principle, Operations, Advantages, Limitations and Applications, Comparison

Forging Processes - Steps, Classification, Characteristics, Tools

Forging Hammers - types

Power presses - types

Typical Forging Operations

Comparison of forged components with cast components

Forging Defects - types

Advantages and Disadvantages of forging process

Rolling of Metals - Types of Rolling with Advantages, Disadvantage

Types of Rolling Mills

Flat strip rolling

Shape rolling operations - Working Principle, Types

Defects in rolled parts - two types

Principle of Drawing - Deformation Processes

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Manufacturing Processes

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