anvilfire logo (c) 1998 by P.J. Dempsey
anvilfire home
anvilfire! News

Blacksmithing News and Events

Cyber Smiths International Logo
Cyber Smiths Int.
Edition 42 - Page 6 of 25 September 30, 2008

SOFA 2008 - Thermite Welding RR-Rail

Cutting the sprue
The Sprue is cut hot using a hydraulic powered shear. The cut leaves little to grind off.
Breaking the risers with a sledge
The Risers are broken off using a sledge. Risers contain extra molten metal so that as the weld (or a casting) cools it has a supply of metal to replace the solidifying metal. Without sufficient riser the weld would shrink and be very weak.
Breaking the risers with a sledge
Breaking the risers with a sledge
The first weld complete and the crew is setting up the second while the first cools. Due to the distance sparks are thrown the crew did not grind these welds. In the field more fires are started from grinding sparks than from the welding.
Assembling the mold
The mold parts in place. We will have a better view for the second weld.

. . much more . .
1  2  3  4  5  6  7 
8  9  10  11  12 
13  14  15  16  17 
18  19  20  21  22 
23  24  25 











Online Metals Sales Logo

Page 1   Page 2   Page 3   Page 4   Page 5   [42-6]   Page 7   Page 8   Page 9   Page 10   NEWS HOME
September 30, 2008
SOFA CONF 2008
Comments to: Editor at anvilfire.com
Copyright © 2008 by Jock Dempsey
Page Counter   -   Cumulitive News