What is an extruder die?

What is an extruder die?

What is an Extrusion Die? Extrusion dies are essentially thick, circular steel disks containing one or more openings to create the desired profile. They are normally constructed from H-13 die steel and heat-treated to withstand the pressure and heat of hot aluminum as it is pushed through the die.

How much is an extrusion die?

Dies for simple geometric shapes generally cost between $550 and $750. Hollow designs require a 2-piece die, which cost generally cost between $1,250 and $1,500.

How extrusion dies are classified?

Classification Dies needed to make several unique products are classified as 1) Sheet dies. 2) Flat-film and blown-film dies. 3) Pipe and tubing dies. 4) Profile extrusion dies.

What are the properties of extrusion dies?

These include high hot hardness, strength and toughness, excellent thermal properties particularly thermal shock resistance, chemical stability and good frictional properties.

How Aluminium extrusion dies are made?

Aluminium Extrusions is a term that refers to how aluminium is shaped. An extrusion is produced by pushing aluminium billet heated to 600 degrees celsius through a steel die. The result in the extruded material emerging as a perfectly replicated cross section of the die pattern.

How many types of dies are used in extrusion process?

3 Types
The 3 Types of Extrusion Dies. There are three types of extruded shapes — solid, hollow, and semi-hollow — each of which has specific characteristics and has different die and tooling requirements.

What are the parts of an extruder?

1.2 Components of an Extruder. A typical extruder usually consists of seven major components, such as: (1) feed assembly, (2) extruder barrel, (3) extruder screw, (4) extruder drive, (5) extrusion discharge or die system, (6) heating/cooling system, and (7) adequate safety and control facilities.

What is K in extrusion?

Extrusion Ratio : (R) Velocity of extruded product = ram velocity x R Therefore high sliding velocities exist along the die land. Extrusion Pr. = P = K Ao ln ( Ao / Af ) Page 2 10 K = extrusion constant, which accounts for flow stress, friction ,and inhomogeneous deformation.