Odvtrávání

Odvtrávání is a mechanical process in which material is removed by drilling, typically to release, detach, or remove a fixed component from an assembly. In Czech usage, the term describes actions aimed at gaining access or freeing parts that are stuck, seized, or embedded, such as rivets, pins, broken fasteners, plugs, or cores.

Common contexts for odvtrávání include metalworking, automotive repair, and construction. The method relies on applying a drill to the target element and enlarging a hole or creating a path that allows the fastener or component to be removed. Depending on the situation, specialists may use direct drilling through the fastener, drilling around it to weaken its grip, or drilling successive pilot holes followed by larger bits. Lubrication, proper drilling speeds, and steady work are important to minimize heat, avoid bit breakage, and prevent damage to surrounding material. After drilling, extraction tools or specialized devices may be employed to remove the remnants.

Tools and equipment associated with odvtrávání include hand or power drills, various drill bits, center punches, and, for stubborn remnants, screw extractors or hydraulic presses. Safety considerations emphasize securing the workpiece, wearing eye protection, and controlling chips and heat to prevent injury or collateral damage.

Odvtrávání is a practical technique in repair and disassembly workflows, balancing the need to remove unwanted material with the risk of damaging adjacent structures. See also drilling methods, tool extraction, and fastener removal.