COLD WORKING PROCESSES

Question 1

process of metal forming in which the deformation of metal occurs below its recrystallization temperature. In most cases, we perform cold working of metal at room temperature.

Answer 1

Cold Working Processes

Question 2

Metal is pulled through a die to reduce diameter, increase length, or modify shape.

Answer 2

Cold Drawing

Question 3

method of shaping metal by
applying compressive forces without the use of heat, typically below the material’ s recrystallization temperature.

Answer 3

Squeezing

Question 4

Compresses and reduces metal
thickness.

Answer 4

Cold Rolling

Question 5

Applications: Uniform profiles in mass
production.

Answer 5

Cold Rolling

Question 6

Shapes metal using compressive
forces from manual hammer or machine hammer

Answer 6

Cold Forging

Question 7

Applications: Manufacturing fasteners
with enhanced mechanical properties.

Answer 7

Cold Forging

Question 8

Forces metal through a die to produce
long, uniform shapes.

Answer 8

Cold Extrusion

Question 9

Applications: Automotive parts and
industrial profiles.

Answer 9

Cold Extrusion

Question 10

Deforms metals into angular shapes at
room temperature.

Answer 10

Cold Bending

Question 11

Methods:
1. Rotary Draw Bending
2. Ram Bending
3. Roll Bending

Answer 11

Cold Bending

Question 12

Methods:
1. Rotary Draw Bending: Bends pipes
using a rotating die.
2. Ram Bending: Uses hydraulic force for pipe bending.
3. Roll Bending: Adjusts bend radius
using three forming rolls.

Answer 12

Cold Bending

Question 13

Produces precise designs on metal
surfaces via high-pressure stamping.

Answer 13

Coining

Question 14

Cuts sheets using a shearing machine to ensure straightness and parallelism.

Answer 14

Shearing

Question 15

Forms flat sheets into hollow shapes
(e.g., cups, cylinders).

Answer 15

Deep Drawing

Question 16

Creates raised or recessed designs on
sheets.

Answer 16

Embossing

Question 17

Type of Bending:
applying force to a sheet of metal over a die, it bends and molds the material into desired shapes.

Answer 17

Press Braking

Question 18

Types of Bending:
One of the oldest and simplest tube bending methods, it uses a hydraulically driven ram that forces a tube against rollers or pivot blocks.

Answer 18

Ram Bending

Question 19

Types of Bending:
a flexible rod or sleeve— is inserted into the pipe during the bending process to support the inner surface and maintain the pipe’s internal diameter. This prevents the pipe from collapsing or deforming, ensuring optimal flow characteristics and structural integrity.

Answer 19

Mandrel Bending

Question 20

Type of Bending:
involves bending tubular sections of metal to create various shapes and angles. that uses a combination of dies and other various components working in a rotary action to bend the pipe.

Answer 20

Tube Bending

Question 21

Types: Guillotine (oldest), Angle, Water Jet, Computer Numerical Control (CNC)

Answer 21

Shearing

Question 22

The _____________ blades are usually high-strength steel alloys or tungsten carbide.

Answer 22

Shearing