Drilling machine drill bit working principle diagram

A cutting process that involves spinning a drill bit to create a circular hole in solid materials is known as drilling. The drill bit is typically a multi-point rotary cutting tool. The bit is pressed against the workpiece and rotated at speeds between several hundred and several thousand revolutions per minute. This. . A high-precision hole-finishing procedure carried out with a multi-edge tool is known as reaming. High penetration rates and shallow cuts involved in the reaming process enable close. . A cutting process that entails enlarging an existing hole in a workpiece with a single-point cutting tool or boring head is known as boring.. . The process of enlarging one end of the hole giving it a conical shape is called countersinking. Countersinking creates a V-shaped edge near the hole's surface. It is frequently employed for deburring drilled or tapped holes, and to ensure fasteners sit tightly in the. . The process of enlarging a hole over a particular section in the workpiece for screw clearance using counterboring tools is known as counterboring. This creates a shallow and enlarged. [pdf]

Crawler drilling rig flow control

The hydraulic system is the muscle of the crawler mounted drill rig, and its control is a vital part of the overall control system. Hydraulic valves are used to direct the flow of hydraulic fluid to different actuators, such as cylinders and motors. [pdf]

Drilling rig flow lines

A flow line, used on a drilling rig, is a large diameter pipe (typically a section of casing) that is connected to the bell nipple (under the drill floor) and extends to the possum belly (on the mud tanks) and acts as a return line (for the drilling fluid as it comes out of the hole), to the mud. Possum BellyThe is used to slow the flow of returning before it hits the . This enables the shale shaker to clean the cuttings out of the drilling fluid before it is returned to the pits for circulation.. . Another common add on is the sample box. This is a heavy duty rubber hose that is inserted at the end of the flow line and at the other end emplaced into the sample box itself. The sample box is used to capture sa. . A stinger line is similar to a flow line, but unlike a flow line is not used to maintain circulation. The stinger line is attached to the to allow for the pressure from a to be released. The stinger line. [pdf]