What is extrusion defects, Mechanical Engineering

Assignment Help:

Q. What is Extrusion defects?

• Surface cracking - When the surface of an extrusion splits. This is often caused by the extrusion temperature, friction, or speed being too high. It can also happen at lower temperatures if the extruded product temporarily sticks to the die.

• Internal cracking - When the center of the extrusion develops cracks or voids. These cracks are attributed to a state of hydrostatic tensile stress at the centerline in the deformation zone in the die.

• Surface lines - When there are lines visible on the surface of the extruded profile.

This depends heavily on the quality of the die production and how well the die is maintained, as some residues of the material extruded can stick to the die surface and produce the embossed lines.


Related Discussions:- What is extrusion defects

Find kinematic viscosity, A pump is used to deliver discharge of 0.05 ...

A pump is used to deliver discharge of 0.05 m 3 /s from a river to a storage reservoir. The system consists of 500 m of 0.15 m cast iron pipe with a 90 o bend with a rad

Kinematic equations, A projectile is fired with a velocity u at the entranc...

A projectile is fired with a velocity u at the entrance A of a horizontal tunnel of length L and height H. Determine the minimum value of u and the corresponding angle \theta for w

Gas flow rates, Gas Flow Rates Shielding gas flow requirements are ba...

Gas Flow Rates Shielding gas flow requirements are based on cup & nozzle size, weld pool size & air movement . Generally, the flow rate increases in proportion to the cross s

Name the drivers for a common international standard, Drivers for a common ...

Drivers for a common international standard The drivers for a common international standard included : Global commerce and data exchange; Increasingly complex produ

Models and their classifications, explain classifications of models based o...

explain classifications of models based on dimensionality,time-reference,degree of generality and degree of closure

Show conceptual layout of plant, Q. Show Conceptual Layout of plant ? D...

Q. Show Conceptual Layout of plant ? During the Evaluate phase of a project, the early concept design considers broad information of the expected installation, and its basic cr

What are rectangular combined footings, What are rectangular combined footi...

What are rectangular combined footings? Rectangular Combined Footings: In the design of rectangular combined footings it is assumed that the footing is rigid. Soil pressure

Mathematics, solve the following differential equation: dy/dx-(1+1/x)y=y^2

solve the following differential equation: dy/dx-(1+1/x)y=y^2

Explain concept of drill, Explain concept of Drill Power feed of the sp...

Explain concept of Drill Power feed of the spindle is a common feature. Also coolant system is a ordinary feature of the radial drilling machine. Radial drilling machines ca

Evaluation phase of radial drilling machine, Evaluation Phase of Radial dri...

Evaluation Phase of Radial drilling machine Steps: 1. To judge the ideas generated in the creation phase for ability to meet the required criteria. 2. To refine, develop

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd