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THE NSH GROUP

Your Technology

Drilling processes - when it's the inner Values that count  

Drilling processes are machining processes for the production of internally rotationally symmetrical surfaces of components using geometrically defined cutting edges. These can be produced from the solid material or can be used for the improvement and precision of existing bores. The process integration of drilling, and especially deep hole drilling with depths up to 2000mm, on our machining and turning centers allows to substitute separate special machines and process operations in the production of your components, thus saving time and costs.

Single-lip Drilling

Here you can see the technology single-lip drilling

Single-lip drilling is a deep-hole drilling process in which a solid drilling tool is used to drill centric or eccentric holes from the solid material with diameters of 0.5 to 40 mm. The drilling tools are often designed with interchangeable, complementary cutting edges as well as stabilizing guide elements. Due to the process integration of deep hole drilling processes on turning-milling centers with separate boring bar slide and magazine, it is possible to achieve bores up to 2000 mm deep.

Ejector Drilling

Here you can see the technology Ejector Drilling

Ejector drilling is a deep hole drilling process in which centric holes are produced with the aid of a special tool consisting of a drill head and double drill pipe. These can be drilled from solid material from 40 to 90 mm in diameter or used to ream existing holes. Both the chips produced and the cooling lubricant are discharged backwards through the drill tube during the process. The drill heads are designed with stabilizing guide elements. By process integration of deep hole drilling processes on our turning-milling centers with separate boring bar slide and magazine, it is possible to achieve bores up to 2000 mm depth or greater.

Tapping

Here you can see the technology tapping

Tapping is a metal-cutting drilling process in which a thread is inserted into an existing core hole at low cutting speeds using a special tap. The drilling tools are usually 2- or multi-bladed and relief ground. Through the process integration of tapping processes on our turning, turning-milling, and grinding centers, it is possible to produce internal threads in any angular position for a wide variety of components.

Spiral Drilling

Here you can see the technology Spiral Drilling

Spiral drilling is a drilling process in which centric and eccentric holes are drilled from the solid material with the aid of a special solid drilling tool, the spiral drill. The drilling tools are usually 2-bladed with a main and secondary cutting edge. The process integration of twist drilling processes on our turning, turning-milling, and grinding centers makes it possible to drill holes, such as weight relief holes or oil holes, in any angular position in a wide variety of components.

Centering

Here you can see the technology Centering

Centering is a drilling process in which center holes are drilled in the solid material on the plane side using special centering drilling tools. These are often required to clamp the workpiece in a subsequent turning operation or as a pilot hole for follow-on tools. Centering can be mapped as part of the machining process in our machining and processing centers so that it does not require an additional stand-alone machine. An advantage of our turning and machining centers is the possibility of measuring a theoretical workpiece center to align the workpiece automatically.