BTA Drill Head BTA Gun Drill

BTA drill is a deep hole processing system (single-tube drill) that supplies cooling oil from the outside and discharges iron chips from the inside. Generally, the BTA drill bit and the drill pipe are connected through thread locking, and the cutting fluid is drawn from between the hole and the drill pipe. It is supplied to the drill bit processing department, and the cutting fluid under high pressure is discharged from the inside of the drill rod along with the iron chips. Since the iron chips are discharged from the inside, there is no need for external chip flutes like gun drills, so it is superior to gun drills in terms of processing efficiency and processing quality.

Compared with gun drilling, BTA drill has the following advantages:

The drill bit and drill pipe are easy to load and unload;

The difficulty of chip removal is correspondingly reduced, making the BTA drilling system suitable for processing large-diameter deep holes;

Since the relative oil supply area of BTA is much larger than that of gun drilling, and the chip removal space is large, the pressure of the cooling system of the BTA drilling system is significantly reduced;

Under the premise that the drill bit diameter, drill pipe length and drill pipe material are the same, the torsional stiffness of BTA drill pipe is about 2.4 times that of gun drill drill pipe, and the bending stiffness is also much higher than that of gun drill drill pipe. Therefore, BTA drill pipe can use large The feed rate and the vibration resistance of the drill pipe are also better than those of gun drills, which is beneficial to improving drilling efficiency and processing quality;

The center of mass of the drill pipe coincides with the central axis, and the torsional strength and stiffness are greater than the V-shaped drill pipe of the gun drill. This advantage makes the BTA drill particularly suitable for deep hole drilling in which the workpiece is fixed and the drill bit rotates;

Since the chips are discharged from the inside of the drill pipe, the chips will not scratch the machined surface, and the machined surface quality is better;

BTA diamond types

There are three types of deep hole tools recommended by BTA: BTA drills for drilling deep holes in solid materials, expansion drills and nesting drills. Expansion drilling is used to further enlarge the drilled hole and process the rough hole, especially for drilling larger holes with smaller-sized deep hole machine tools. Trench drills are used to remove large diameter or precious metal cores from solid bodies and require much less machine power. Among the three types of drill bits, BTA (solid) drills are the most widely used and have the most profound impact on the development of deep hole drilling.

Advantage

· It’s Our Manufactured S Type 25 Mm -150mm BTA Deep Hole Drilling Head.

· It Adopts High Quality Alloy Steel Material , with Super Coating Inserts.

· Carbide Guide Pads, High Efficiency, Easy Install and Low Cost.

· Widely Machining for Different Material.

· Short Lead Time, High Quality, Cutting Tool Body is Aviation Pre Hardening Material!