What is a Percussion Hammer?
In the context of drilling and boring, a percussion hammer may refer to a type of drilling method called percussion drilling or hammer drilling.
Percussion hammer drilling is a technique used in certain drilling applications where the rock or hard surface is fractured and penetrated by a combination of rotary and percussive forces. It is commonly employed in situations where conventional drilling methods may be ineffective or inefficient, such as drilling through hard rock formations.
In percussion hammer drilling, a drilling rig is used that incorporates a drill bit attached to a drill string. The drill bit typically has carbide or diamond-tipped inserts to withstand the high impact forces. The drill string is rotated while the drill bit is simultaneously hammered into the rock surface, creating fractures and allowing the drilling progress.
The hammering action in percussion hammer drilling is achieved through the use of a pneumatic or hydraulic hammer mechanism. This mechanism delivers rapid impacts to the drill bit, aiding in the penetration of hard materials.
Percussion hammer drilling is commonly used in various industries, including mining, geotechnical engineering, construction, and exploration activities. It allows for efficient drilling in hard formations, such as granite, basalt, or consolidated rock layers, where conventional rotary drilling alone may not be sufficient.
It’s important to note that the specific equipment and techniques used in percussion hammer drilling can vary depending on the application and the requirements of the drilling project.