Drop hammer

A drop hammer, also known as a power hammer, is a type of machine tool used primarily in the metalworking industry. It is designed to shape and forge metal using controlled, repetitive blows. The drop hammer operates by dropping a heavy ram onto the workpiece, which is placed on a die, to deform it according to the shape of the die.

History

The origins of the drop hammer can be traced back to ancient times, where simple hammers powered by human or animal labor were used for forging metals. The modern mechanical drop hammer was developed during the Industrial Revolution, which allowed for more efficient and large-scale production.

Types of Drop Hammers

There are several types of drop hammers, each utilizing different mechanisms and sources of power:

Air/Steam Drop Hammer

These hammers use compressed air or steam to lift the hammer before dropping it onto the workpiece. They are known for their control and precision in the forging process.

Mechanical Drop Hammer

Mechanical drop hammers are powered by electric motors or mechanical linkages that lift and drop the hammer. They are typically used for larger scale industrial applications.

Applications

Drop hammers are used in a variety of metalworking applications, including:

• Forging - shaping metal using compressive forces
• Stamping - forming metal into specific shapes using a die and a press
• Metal shaping - creating desired shapes out of metal sheets or blocks

Advantages

• Efficiency: Drop hammers can deliver powerful blows quickly, significantly speeding up the metalworking process.
• Precision: Modern drop hammers are equipped with controls that allow for precise manipulation of the metal.
• Scalability: Suitable for both small-scale workshops and large industrial operations.

Safety Considerations

Operating a drop hammer involves significant risk due to the heavy and powerful nature of the machinery. Safety measures include:

• Proper training for operators
• Regular maintenance and inspections
• Use of safety guards and personal protective equipment

See Also

• Machine tool
• Metalworking
• Forging