sangbmt
Unngoy
Number of posts : 71
Age : 33
Registration date : 2011-01-07
 |  Subject: Hot Extrusion of Metals  Fri Jan 07, 2011 11:56 pm | |
| » Category Sponsors Get Your Link Here - Limited Time Bargain at only $14/month! Home » Science » Hot Extrusion of Metals jacobwilson Article written by jacobwilson View Full Profile Get Html Code PDF | Print View | Post to your Site Hot Extrusion of Metals Submitted by jacobwilson Tue, 16 Nov 2010 Extrusion is a hot working process, in which, forging, rolling etc., uses the good deformability of heated metallic materials for shaping them. The most important aspect of the process is that it enables considerable changes of shape to be achieved in a single operation and provides a means of dealing with metals and alloys whose physical structure renders them unsuitable for shaping by other methods. Besides, with extrusion it is possible to form complex sections that cannot be produced in other ways. Extrusion also offers economic advantages in that the dies are relatively inexpensive and are interchangeable, so that one extrusion machine can be used for the production of a wide variety of sections. Hot Extrusion is done at fairly high temperatures, approximately 50 to 75 % of the melting point of the metal. The pressures can range from 35-700 MPa (5076 - 101,525 psi). Due to the high temperatures and pressures and its detrimental effect on the die life as well as other components, good lubrication is necessary. Oil and graphite work at lower temperatures, whereas at higher temperatures glass powder is used. Typical parts produced by extrusions are trim parts used in automotive and construction applications, window frame members, railings, aircraft structural parts. 17 inch laptop sleevethe simpsons games | |
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lunamoonfang
Kig 'Yar
Number of posts : 126
Age : 33
Registration date : 2010-12-28
| | Subject: Re: Hot Extrusion of Metals Sat Jan 15, 2011 12:27 pm | |
| Subject: Hot Extrusion of Metals Fri Jan 07, 2011 10:56 pm » Category Sponsors Get Your Link Here - Limited Time Bargain at only $14/month! Home » Science » Hot Extrusion of Metals jacobwilson Article written by jacobwilson View Full Profile Get Html Code PDF | Print View | Post to your Site Hot Extrusion of Metals Submitted by jacobwilson Tue, 16 Nov 2010 Extrusion is a hot working process, in which, forging, rolling etc., uses the good deformability of heated metallic materials for shaping them. The most important aspect of the process is that it enables considerable changes of shape to be achieved in a single operation and provides a means of dealing with metals and alloys whose physical structure renders them unsuitable for shaping by other methods. Besides, with extrusion it is possible to form complex sections that cannot be produced in other ways. Extrusion also offers economic advantages in that the dies are relatively inexpensive and are interchangeable, so that one extrusion machine can be used for the production of a wide variety of sections. gasserviceemail lists | |
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