Gun drills are a special kind of drills that use highly compressed air or other suitable fluids to cut into deep holes of depth to diameter ratios that surpasses 400. These drills don't have helical features like the classic drills, but instead they feature a hardened tip on the front that is where the fluid comes out of and hits the cutting face.
Featuring a fluted rod design, the drill is kept under melting operating temperatures thanks to a circulating coolant that also helps with the removal of the cut material chips. The fluids move through the rod itself, while its pressure is controlled by the machine operator and the main pump.
Features
The tip of the gun drill itself is the point that is called to withstand the deformation forces generated by the extreme pressures. For this reason, gun drill manufacturers choose the strongest metal alloys and composite materials that stay unaffected by intense pressure and sudden temperature changes for many years of operation.
The speed of gun drill machines is one of the strongest characteristics of this tool as high speed drills can bore steel at a rate of 75 cm per minute or even more depending on the diameter. The most significant advantage of deep hole drilling machines, though, is the extreme accuracy with which they can cut through hardened metals. These tools can achieve an astonishing finishing that rarely needs further polishing.
Uses
Gun Barrels
The name of the gun drills derives from their main and most prominent use case that is the boring of gun barrels. Gun barrels were made using the metal casting technique before gun drills were made available showing much less durability and resistance to explosive forces.
Gun drilling machines are ideal for the particular application as the perfect finishing of the inner surface of the gun barrel ensures the unobstructed and unaffected trajectory of projectiles. Moreover, the accuracy of the cuts ensures coherent barrel thickness which subsequently means homogeneous heating and thus less cracks and longer lifetimes.
Creating Molds
Another case of gun drilling machine application is for the manufacturing of molds that are suitable for the production of metal parts or tools. In this case, gun drills are especially useful as the molten material may have to be inserted through a relatively long hole and into the casting mold.
Manufacturing Tools
A popular application for gun drills is tool manufacturing. There are several types of mechanical tools that feature deep holes that serve as fitting positions for extensions etc. Deep hole drilling machines can help boring the hardened alloys that tools are made of and can even achieve polygonal features.
Making Musical Instruments
Last, gun drilling machines are extensively used in the music instrument manufacturing industry and especially for wind instruments that require deep holes of small diameter. These instruments can be flutes, oboes, bassoons, saxophones, clarinets, trumpets, ocarinas and reeds. As most of these instruments are made out of brass and other soft metals, gun drill machines are required to work with precision and delicacy as the slightest deformation will result in wrong tonal performance.
Featuring a fluted rod design, the drill is kept under melting operating temperatures thanks to a circulating coolant that also helps with the removal of the cut material chips. The fluids move through the rod itself, while its pressure is controlled by the machine operator and the main pump.
Features
The tip of the gun drill itself is the point that is called to withstand the deformation forces generated by the extreme pressures. For this reason, gun drill manufacturers choose the strongest metal alloys and composite materials that stay unaffected by intense pressure and sudden temperature changes for many years of operation.
The speed of gun drill machines is one of the strongest characteristics of this tool as high speed drills can bore steel at a rate of 75 cm per minute or even more depending on the diameter. The most significant advantage of deep hole drilling machines, though, is the extreme accuracy with which they can cut through hardened metals. These tools can achieve an astonishing finishing that rarely needs further polishing.
Uses
Gun Barrels
The name of the gun drills derives from their main and most prominent use case that is the boring of gun barrels. Gun barrels were made using the metal casting technique before gun drills were made available showing much less durability and resistance to explosive forces.
Gun drilling machines are ideal for the particular application as the perfect finishing of the inner surface of the gun barrel ensures the unobstructed and unaffected trajectory of projectiles. Moreover, the accuracy of the cuts ensures coherent barrel thickness which subsequently means homogeneous heating and thus less cracks and longer lifetimes.
Creating Molds
Another case of gun drilling machine application is for the manufacturing of molds that are suitable for the production of metal parts or tools. In this case, gun drills are especially useful as the molten material may have to be inserted through a relatively long hole and into the casting mold.
Manufacturing Tools
A popular application for gun drills is tool manufacturing. There are several types of mechanical tools that feature deep holes that serve as fitting positions for extensions etc. Deep hole drilling machines can help boring the hardened alloys that tools are made of and can even achieve polygonal features.
Making Musical Instruments
Last, gun drilling machines are extensively used in the music instrument manufacturing industry and especially for wind instruments that require deep holes of small diameter. These instruments can be flutes, oboes, bassoons, saxophones, clarinets, trumpets, ocarinas and reeds. As most of these instruments are made out of brass and other soft metals, gun drill machines are required to work with precision and delicacy as the slightest deformation will result in wrong tonal performance.
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