Tag Archives: deep hole drilling machine

Do You Know What BTA Drilling Is?

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What is BTA Drilling?

Start Here: Deep Hole Drilling Overview

BTA drilling is a deep hole drilling process that uses a specialized drilling tool on a long drill tube to produce deep holes in metal, from holes with a diameter of 20 mm [0.80 in] and larger, up to depth-to-diameter ratios of 400:1. BTA drilling is the most effective method of drilling deep holes, as it is a cleaner, more reliable and capable process than conventional twist drills, and can achieve larger diameters and higher feed rates than the alternative gundrilling.

 

BTA drilling tool heads are threaded or mounted onto long drill tubes, and use multiple cutting surfaces on a single tool to remove chips efficiently, exhausting them using high-pressure coolant through holes in the tool head, then out the drill tube and through the machining spindle. BTA tooling is available in brazed or inserted carbide configurations.

 

BTA stands for Boring and Trepanning Association, and is also sometimes referred to as STS (single tube system) drilling, as it uses one single drill tube for the BTA tool, compared to other processes such as ejector drilling, which use two.

 

BTA Drilling vs Gun Drilling

BTA drilling can achieve drill feed rates of typically 5-7 times faster than gundrilling at the same diameter, due to the tool design, more efficient chip exhaust, and machine design and power. BTA drilling machines introduce coolant around the tool head, and evacuate chips through the drill and machine spindle, compared to gundrilling, where coolant is introduced internally and chips exit through an external groove. BTA drilling is effective in holes from 20 – 200 mm [0.80 – 8.00 in], a greater size range than gundrilling.

 

Optimal Specifications for BTA Drilling

BTA deep hole drilling is the ideal process for a range of larger deep hole drilled depths and diameters. BTA drilling, and secondary processes, are capable of drilling extreme depth-to-diameter ratio holes while achieving strict tolerances.

 

BTA Tooling Diameter Range

  • 8 – 65 mm Brazed Disposable BTA
  • 10 – 114 mm Spade Drill BTA
  • 16 – 28 mm Indexable BTA, Single Insert
  • 25 mm +     Indexable BTA, Multiple Insert

 

BTA Drilling Equipment

Deep hole drilling machines that are designed to perform BTA and related processes are complex systems of high-precision components, designed and built for extremely deep holes and strict tolerances.

 

If you need more information of BTA drilling equipment, I sincerely recommend you to visit Honge Precision Industries Corp. – they can provide high-quality and high-performance BTA deep hole drilling machine for clients. To get more details of this hole drilling machine, welcome to check out their website and feel free to contact with Honge Precision Industries!

 

Article Source: https://www.unisig.com/information-and-resources/what-is-deep-hole-drilling/what-is-bta-drilling/

What Is A Deep Hole Drilling Machine?

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Do you know what a deep hole drilling machine is? Have you encountered this type of machine before?

 

A deep hole drilling machine is a mechanism used in the process of deep hole drilling. Commonly, it is used to produce deep, straight holes especially in metals particularly in the process of gun making. Deep hole drilling machines are the best mechanism to produce accurate holes necessary for most manufacturing processes.

 

Deep hole drilling is the machining of holes with a relatively large depth to a diameter ratio. Essentially, any hole deeper that ten times the diameter of the material should certainly constitute the process of deep hole machining. Specialized drilling technique should be considered in dealing with these processes.

 

Interesting to note as well: deep hole drilling machines were initially developed for manufacturing of guns and armaments. It was used to drill gun barrels. Throughout time, however, other industries also saw the potential of this tool. Nowadays, a lot of industries such as energy, oil and gas use gun drilling machines for resource exploration. It is also useful in the metal cutting industries, automotive, aircraft, petro-chemical industries. Gun drilling mechanisms are also found useful even in the medical field.

 

Construction of deep hole drilling machines is not only expensive but a difficult task as well. It requires specific planning and a variety of tools and machinery. Despite the difficulty of production, deep hole drilling machines are still seen as an important machine in most processes in different industries.

 

Depending on the required processes, there are different kinds of deep hole drilling machines. As a machinist, you have to consider the dimensions of the machine you are going to use, and the dynamics of the materials. In addition to the machine dimensions, power and dynamics, compatibility of these tools with various machines is primarily determined by the fluid delivery and chip exhaust systems. Achieving a perfect deep hole is not only reliant to the drilling machine but to a variety of mechanisms or systems. The two most common deep hole drilling systems enforced by different industries are gun drilling system and the BTA system.

 

Here is how a drill machine operates in the system of gun drilling: the drill is positioned and held in a spindle nose. It is then guided to a pre-started hole to avoid vibration of the drill. With this setup, the gun drill system operates in full accuracy. The high pressure coolant flushes the chips and lubricates the system. This operation produces the fine finish and burnished surface of the hole.

 

Important to note as well that, in using a drilling machine, safety precautions must be enforced. As with all power equipment, safety and security of you and your environment plays a crucial role. For instance, you must wear the correct and appropriate working clothes in using a deep hole drilling machine. An appropriate uniform lessens the possibility of an accident. Make sure also that you know how the machine works so that you can preempt an incident waiting to happen.

 

If you need more information about hole drilling machine, please choose Honge Precision Industries Corp. – the company’s deep hole drilling machine has wide range of model, suitable for various industrial part’s deep hole drilling. Due to its excellent quality, good management system and superior after-sales service, Honge has already enjoyed a long-lasting good reputation in the world market. Learn more details, feel free to contact Honge at 886-4-2496-0300.

 

 

Article Source: https://www.quora.com/What-is-a-deep-hole-drilling-machine