BORING,DRILLING,TREPANNING AND BURNISHING JOB WORK

Higher Precision From the Start - The Deep Hole Drilling Process

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Deep hole drilling is the process frequently used for initial hole generation in large-scale industrial parts, deep hole drilling delivers exemplary levels of precision and efficiency to a wide variety of manufacturing applications.

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 gun drilling.

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Drilling hole              : BTA drilling method, remove the cutting chips backward through drill bar.

Boring hole               : Adopt push boring method, remove the cutting chips forward through the

                                         basic hole of work piece.

Trepanning hole      : Adopt internal oil supply and external cutting chips removal method.​

Accuracy:

Drilling

Hole size accuracy      : IT9-IT11

Hole deviation               : 0.5mm/1000mm

Surface roughness     : Ra6.3~12.5um

Fine boring

Straightness                 : 0.1mm/1000mm

Surface roughness    : Ra6.3~12.5um

Hole size                          : IT8~IT9

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Application

Oil & Gas – Oil field Exploration Equipment, Oilfield Downhole Exploration.

Shipbuilding

Medical technology

Automotive & Vehicle Construction

Aerospace

Hydraulics / Pneumatics Components

Semi-Finished Products

Renewable Energies

Other Applications like – Fuel injector bodies, Fuel rails for diesel engines, Heat exchanger Tube sheet, Aircraft landing Gear, Fluid Assembly Ends, Hydraulic Cylinder inside bore.