Arrow stone BTA large diameter deep hole drill- Nanjing Arrow-Stone

Arrow stone BTA large diameter deep hole drill

BTA deep hole drill bit has two basic angles: external angle and internal angle. The most appropriate combination can be selected according to the material and aperture of the workpiece to be cut, so as to better balance the cutting force and chip breaking in the work, and the cutting force is transmitted to the supporting shoulder to ensure good straightness and coaxiality. The drill bit has a small inverted cone with a slightly larger diameter than the cutter shank. It can be ensured that the drill rod rotates freely in the cutting hole without rubbing the inner wall of the hole. BTA deep hole drill pipe is made of high-quality alloy steel, which is made of rolling, heat treatment, straightening and other processes. The drill pipe is rolled with a "V" groove of 118 ° ~ 120 ° for chip removal. In order to ensure the straightness and deviation of the drilled hole, the drill pipe must have sufficient strength to provide the torque required for cutting under small torsional deformation. At the same time, the blade must also have enough toughness, so as to absorb the vibration generated by the high-speed rotation of the blade. Therefore, the material selection, heat treatment and rolling process of drill pipe are very strict. BTA deep hole drill shank transmits torque between the machine tool and the drill bit to seal high pressure oil. The high rotation accuracy between the drill shank and the drill pipe can avoid additional vibration and improve machining accuracy and reliability. At the neck where the drill shank is connected with the cutter rod, there is a smooth arc-shaped groove to eliminate stress in order to avoid damage due to stress concentration. The gun drilling process is forced chip removal. The high-pressure cutting oil enters the inner hole of the gun drill from the drill handle and reaches the cutting area to cool and lubricate the drill edge. Iron filings and cutting oil are discharged along the "V" groove of the drill pipe. Also known as external chip. BTA large diameter deep hole drilling, processing a wide range of materials. From glass fiber, Teflon and other plastics to carbon steel, alloy steel, non-ferrous metals to high-strength alloy steel (such as high-temperature heat-resistant alloys, titanium alloys) can be used for deep hole processing. Due to its excellent hole processing performance, gun drills are widely used in shipbuilding, automobiles, engines, locomotives, military industry, chemical machinery, nozzle oil pumps, mining machinery and hydraulic parts. Arrow stone BTA deep hole drill, from the grinding of the drill bit, the rolling and heat treatment of the cutter rod, the welding of the drill bit and the drill rod, each process adopts advanced process equipment and implements strict inspection standards to ensure that every drill bit delivered to you is of excellent quality!

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Grinding technology

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Product Description

BTA deep hole drillThe drill bit has two basic angles, the outer angle and the inner angle. The most appropriate combination can be selected according to the material and aperture of the workpiece to be cut, so as to better balance the cutting force and chip breaking in the work, and the cutting force is transmitted to the supporting shoulder to ensure good straightness and coaxiality.

The drill bit has a small inverted cone with a slightly larger diameter than the cutter shank. It can be ensured that the drill rod rotates freely in the cutting hole without rubbing the inner wall of the hole.

BTAdeep hole drillThe drill pipe is made of high-quality alloy steel, which is made by rolling, heat treatment, straightening and other processes. The drill pipe is rolled with a "V" groove of 118 ° ~ 120 ° for chip removal.

In order to ensure the straightness and deviation of the drilled hole, the drill pipe must have sufficient strength to provide the torque required for cutting under small torsional deformation. At the same time, the blade must also have enough toughness, so as to absorb the vibration generated by the high-speed rotation of the blade. Therefore, the material selection, heat treatment and rolling process of drill pipe are very strict.

BTA deep hole drillThe drill shank transmits torque between the machine tool and the drill bit and seals high pressure oil. The high rotation accuracy between the drill shank and the drill pipe can avoid additional vibration and improve machining accuracy and reliability. At the neck where the drill shank is connected with the cutter rod, there is a smooth arc-shaped groove to eliminate stress in order to avoid damage due to stress concentration.

The gun drilling process is forced chip removal. The high-pressure cutting oil enters the inner hole of the gun drill from the drill handle and reaches the cutting area to cool and lubricate the drill edge. Iron filings and cutting oil are discharged along the "V" groove of the drill pipe. Also known as external chip.
BTA large diameter deep hole drill,Processing of a wide range of materials. From glass fiber, Teflon and other plastics to carbon steel, alloy steel, non-ferrous metals to high-strength alloy steel (such as high-temperature heat-resistant alloys, titanium alloys) can be used for deep hole processing. Due to its excellent hole processing performance, gun drills are widely used in shipbuilding, automobiles, engines, locomotives, military industry, chemical machinery, nozzle oil pumps, mining machinery and hydraulic parts.

2. Tool model:BTA-1990-CT			3. Tool specifications:φ19.9
4. Tool brand:Arrow Stone			Drill pipe model:Drill pipe D18 * 300M
Tool Material:welded hard alloy			Tool coating:----
5. Materials to be processed:20Cr/20CrMo			Tool hardness:45-50		Coolant:Cooling oil
6. Processing method:	□ Common drill	□Through hole drill	□ Blind hole drill	Processing Sketch and Remarks: Attached Picture
	□ Centered drill (center)	□ Sheet drill	□
	□ Continuous processing	□ intermittent processing	□ Other
7. Spindle speed (RPM):Spindle forward rotation 200 drill pipe reverse 800
8. Line speed (m/min):F=22mm/min
9. Feed per tooth:----			10. Worktable feed (mm/min):----
11. Cutting depth:710mm		12. Cutting thickness:	.....	13. Shape of iron filings:Long strip constant crumbs

Arrow stone BTA deep hole drill, from the grinding of the drill bit, the rolling and heat treatment of the cutter rod, the welding of the drill bit and the drill rod, each process adopts advanced process equipment and implements strict inspection standards to ensure that every drill bit delivered to you is of excellent quality.

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