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Processing steps of BGTB chamber boring system

The BGTB-chamber boring technology, combines the sophisticated technology and efficiency of BTA deep hole drilling with the precision and versatility of modern CNC technology. The BGTB system is designed for use on modern CNC deep hole drilling or turning machines. The inner contour can , for example, starting with the solid drilling process be completed in a single set.

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1. Producing of the guiding bore

e.g. by BTA solid drilling process.

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2. Workpiece with guiding bore

is decisive for the chamber quality.

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3. The chamber-boring process

A pulling process. With cut division: made in short chamber technology,

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4. Finishing of the chamber-boring

by removing the cutting edge and the tool out of the workpiece.


The BGTB chamber boring and drive system (AWA)

The BGTB chamber boring system in the standard version is fundamentally able to work with stationary and rotating tools

Das BGTB Auskammerwerkzeug- und Antriebssystem (AWA)
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1. Chamber-boring tool
AK - NC

Different tools in the diameter range from 45mm to 90mm. Optimization of guiding by hydraulically actuated carbide guide pads.

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2. Special boring bar
SBG

Boring bars with different diameters. Boring bar ends with coupling piece for hydraulic and control rod.

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3. Driving unit
AWA

The drive of the chamber boring tools is conceived as a control unit for deep hole drilling and turning machines (complete machining).

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Examples of BGTB chamber boring technology

To reduce weight or to implement specific functions the internal profiling is necessary.

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Flugzeug-Landebein
Aircraft landing gear

Aircraft landing gear parts are typical internal profiling parts.

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Inner contour

An essential requirement of these components combine maximum strength with minimum weight.

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Finished part

They are usually very complex components.

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Turbine shaft

Turbine shafts are lightweight, thin-walled parts and usually of highly heat resisting materials.

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Internal profiling

These parts almost always have complex internal profiles often with chamber recesses.

turbine shaft
Finished part

Also by the used workpiece material, they are difficult to machine.

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extruder
Extruder barrel

Extruder barrel with two intersecting, non axially parallel , tapered bores.

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Inner contour

The bores are made ​​in succession with chamber boring tools. There is a drilling task with extremely small tolerances.

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Interior view

Look into an extruder barrel.

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