Deep Hole Drill

Deep Hole Drill

Deep hole drill is a tool designed to work at much deeper cutting depths than twist drills. This allows it to cut holes that are several times larger in diameter. It is a highly specialized type of tool that requires very specific tooling and cutting parameters in order to operate properly. It is also a process that must be carried out on specialized equipment with an optimized drilling procedure in order to achieve the desired results.

The main characteristics of a deep hole drill are its asymmetrical single cutting edge and the fact that it is not self-centering. This means that it must be guided by a pilot hole or a drill bushing and will not perform well if the machine is not set up correctly for this. It is very important that machinists are familiar with the requirements of this type of tool in order to ensure success on their jobs. This can be done by listening to the tool as it cuts, observing the chips and other indicators, checking the machine load, monitoring oil pressure and so on.

In addition to the proper tooling, the process of drilling deep holes also requires the use of high-pressure coolants to provide lubrication and cooling during the operation. This is extremely important to avoid damage to the part as well as prevent the formation of dangerously hot spots in the metalwork. It is recommended that machinists partner with a service provider who has extensive experience in the field of deep hole drilling to ensure the best possible results.

Traditionally, the deep hole drilling process was performed using a rotating tool in conjunction with a stationary workpiece. While this is fine for shallower holes, as the requirements for tolerances get tighter, this configuration becomes less and less accurate. Today, a dedicated deep-hole gundrilling machine is the only tooling that can handle the demands of this task.

A deep hole drill has a special groove geometry that provides optimum chip transport and cooling, even at very high speeds. The coolant is either a full liquid coolant with a specific composition for this purpose or emulsified water, also with a special combination of components.

Due to the close tolerances and high performance that can be achieved, deep hole drilling is widely used in many industries. It can be found in the manufacturing of automotive parts such as cam-shafts, crank-shafts and fuel injector bodies, the creation of lo holes in injection molding and aerospace parts like landing gears. In these applications, the high accuracy and productivity of this machining technique are critical to the integrity of the finished product. The process can be carried out on a variety of machines, but most often on specialized equipment that has been set up explicitly for this type of application. These innovative machines are designed to optimize the drilling procedure for straightness and efficiency.

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