click on the above logos for more information on each process or use drop down menus below
Our new address: N169 W21010 Meadow Lane (P.O. Box 156)- Jackson, WI 53037
Effective July 7, 2011 Badger is moving to a larger 160,000 sq. ft. facility to more effectively service our growing customer base.

Javascript DHTML Drop Down Menu Powered by dhtml-menu-builder.com

   

Javascript DHTML Drop Down Menu Powered by dhtml-menu-builder.com


Decreases Die Casting Die Soldering and Galling

Recent studies, from 2006 and continuing into 2008 by various labs and organizations, have found that one of the many causes of soldering is due to the impingement of aluminum to the die steel. Soldering effectively weakens the steel.  Other contributing factors are temperature, wettability, and metal velocity. To make a bad situation even worse, aluminum (Al) and iron (Fe) have a natural chemical affinity to one another because of their makeup and electron imbalance.  When contacting each other, they want to form intermetallic compounds as shown in the photos below and drawings at the right.  When the soldered area is removed, iron from the steel is also decreased and affected.

ThermaLLife forms a compound layer barrier that prevents the interaction of the aluminum (Al) with the iron (Fe) component of the tool steel.  Thus the stages of destructive soldering are stopped before further damage to the tooling can occur.

Stage

Description

Cause

I Erosion of grain boundaries Weak regions - cavitation
II Pitting of die surface Loose grain - cavitation
III Formation of iron-aluminum compounds Chemical - electron imbalance
IV Formation of pyramid shapes Rapid diffusion of iron
V Adherence of Aluminum Cracks in surface at pyramids
VI Erosion pits Cavitation loss of yield strength



Intermetallic elements of soldering

Loss of the tool's protective surface or lubrication barrier between the die and cast molten metal allows the creation of intermetallic compounds that cause a chemical adhesion or soldering of the metal to the die's surface.

Related Topics > - Compression Benefits

     

 


 


courtesy - Worcester Polytechnic Institute - Diran Apelian


Aluminum soldering


   

Page updated on 02/08/2011


Some web pages were last modified 07/06/2011
Home  |  About Us  |  Services  |  Gallery |  Glossary  |  Contact Us

Copyright 1996-2011 Badger Metal Tech, Inc. All Rights Reserved
N169 W21010 Meadow Lane  Jackson, WI 53037   262-252-3804

Reproduction in whole or in part in any form or medium without express written permission of Badger Metal Tech is Prohibited.

MetaLLife and ThermaLLife and TooLLife are registered or in process with the US patent and trademark office.  Intellectual property and graphics contained herein are the sole property of Badger Metal Tech, Inc.