how to build a brake drum forge

How to Build a Brake Drum Forge

Building a brake drum forge is a rewarding project for blacksmiths and metal enthusiasts alike. It allows for the creation of high-heat applications without requiring an extensive setup. The brake drum, typically found on older vehicles, is an excellent and affordable option for creating a forge because it is made from cast iron and can withstand high temperatures. In this article, we will guide you through the steps to create your very own brake drum forge.

Materials Needed

Before you begin construction, gather the following materials

1. Brake Drum Salvaged from a junkyard or purchased from an auto parts store. 2. Steel Pipe or Tubing For the air supply, a 1-inch diameter pipe about 12 to 18 inches long works well. 3. Blower An old hair dryer or a small blower can provide sufficient air for combustion. 4. Firebricks To line the interior of the forge and enhance heat retention. 5. Steel Plate For the base of the forge, at least 1/4 inch thick. 6. Welding Equipment For assembly, including a welder, gloves, and safety glasses. 7. Other tools Angle grinder, drill, and basic hand tools.

Step 1 Prepare the Brake Drum

Start by cleaning the brake drum thoroughly to remove any residual grease or brake dust. This can be done using a wire brush or a grinder. Ensure that the interior surface is smooth and free of debris, as you’ll need it to hold heat effectively.

Step 2 Create Air Inlet

Once the drum is clean, the next step is to create an air inlet. Take your steel pipe and drill a hole about 1 inch in diameter into the side of the brake drum, approximately 2 inches from the bottom. This will allow air to be blown into the forge, enhancing the combustion process.

Step 3 Attach the Blower

Attach the blower to the other end of the steel pipe. If you’re using a hairdryer, make sure it fits snugly or use duct tape to secure it in place. The blower should push air into the drum, significantly increasing the temperature when you light the forge.

Step 4 Construct the Forge Base

Use the steel plate to create a stable base for your forge. The plate should be large enough to support the brake drum and allow for some space around it for safety. Weld the brake drum securely to the center of the steel plate, ensuring it is stable and won’t tip over during use.

Step 5 Line the Forge

To enhance the heat retention of your forge, line the interior of the brake drum with firebricks. These bricks can be cut to size as needed to create a snug fit. They will help maintain high temperatures and protect the brake drum from direct heat.

Step 6 Final Touches

Once everything is assembled, check each connection for security. You should also ensure that the blower is functioning correctly. When you’re ready to fire up your forge, place charcoal or your preferred fuel into the drum, turn on the blower, and ignite the fuel.

Conclusion

Congratulations! You have successfully built a brake drum forge. This compact yet effective forging tool will serve you well for various metalworking projects. Always remember to use safety gear and work in a well-ventilated area when operating your forge. Happy forging!