Welding Cast Iron Brake Drums. Jack it up to about 50 psi if you are going to cut 34 and you should be cutting a 2 hole in about 2 minutes after preheat on cast steel. In 1931 Ford introduced the use of cast nodular iron front and rear brake drums replacing the earlier drums which were assemblies of stamped steel drums mounted on steel hubs.
Brake-Drum Metallurgy 320006 E ITHER steel or cast iron will provide a good braking surface provided the grain structure is laminated pearlite according to the author. Stamped or forged steel can compete with cast iron for thinner walls. But this time a small steel block about 14 thick and maybe 58 by 1 14 long popped off the exterior side of the drum.
It is necessary not to grind into - or even too close to - the steel but instead to make sure that there is adequate cast iron thickness between the inserted steel and the contact face.
The cast iron rods RCI and A and B and the copper zinc rods RCuZn-B and C. Promote the use of hydraulic brake shoes contacts the inner drum brakes the friction generated by exposure to suppress the rotating tire to achieve the purpose of the brakes. With the brake shoes on the car put masking tape around the diameter of both brake shoes. Was 2 old brake disks of the car with a bit of 6 sch 80 pipe about 10mm thick- about 150mm long and then a horseshoe shape hoop welded to the top for the lock chain to pass through.