Forging is simply striking hot metal with a hammer into a desired shape. Blacksmiths have been doing this for centuries. As blacksmiths experimented with new techniques, they found that more complex shapes could be made by hammering the metal into a die. (The die contains the shape of the finished product.) Instead of hammering by hand, modern forgings use a falling hammer or a power hammer and top and bottom dies to form the desired shape. This is drop forging. At Council Tool, we use a variety of forging methods.
Drop forging- Hammering hot metal into dies.
Press forging – Instead of forcing hot metal into a die with a hammer blow, it’s pressed into the die using hydraulic pressure.
Roll forging – The hot metal is pressed between two rollers.
Cold forging- For smaller parts, the metal can be pressed into the die without being heated.
Another way tools can be made is by casting from molten metal or by machining, which is cutting material away from a larger block of metal. The advantage of forging is that it improves the strength of the metal by aligning and stretching the grain structure. A forged part will be stronger than a casting or a machined part. Before you buy a tool, ask if it is forged. Ours are.