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CNC turning (Computerized Numerical Control) is a machining production process for manufacturing high-precision, rotationally symmetrical CNC turned parts. The operating principle is very efficient: a cylindrical raw material is clamped in the lathe and rotated around its own axis at high speed. A stationary cutting tool (turning tool) moves along a programmed contour under computer control and removes material in the form of chips. This process is repeated until the CNC turned part has reached the exact, predefined shape and surface quality. CNC turning thus enables the economical production of complex components with high repeat accuracy. 

CNC turning processes a wide range of materials for the production of CNC turned parts. These include metals such as steel and stainless steel for high-strength, wear-resistant components. Aluminum alloys are popular for CNC turning due to their low weight and excellent machinability. Non-ferrous metals such as brass, which is excellent for machining, bronze with high sliding properties and copper for conductive CNC turned parts are also often used. Engineering plastics such as POM, PEEK or PA are also an economical alternative for lightweight, insulating and chemically resistant CNC turned parts and are frequently used in modern CNC turning.

The main tool used in CNC turning is the turning tool, which consists of a holder and a cutting edge that removes material from the rotating CNC turned part. There are specialized tools for different tasks: roughing tools for high material removal, finishing tools for a fine surface finish, grooving tools for grooves and threading tools for cutting threads. The cutting edges themselves are usually replaceable indexable carbide inserts. This increases the efficiency of CNC turning enormously. Modern CNC turning centers also use driven tools such as drills or milling cutters to produce complex, non-rotationally symmetrical geometries on CNC turned parts.

In CNC turning, the achievable tolerances are a decisive quality feature for CNC turned parts. The common standard is production in accordance with ISO 2768-m (medium), which already guarantees a high level of accuracy. For most CNC turned parts, a standard tolerance of ±0.1 mm is common and economical. However, very tight tolerances of ±0.02 mm to ±0.01 mm can easily be achieved through precise CNC turning with optimized finishing processes. The final precision of the CNC turned parts depends on factors such as machine stability, tool condition and material. Extremely tight tolerances increase the manufacturing effort and therefore the costs of the components.

CNC turning is established as a key technology in almost all technical sectors that require precise CNC turned parts. In mechanical and plant engineering, it is indispensable for the production of shafts and bearings. The automotive industry relies on CNC turning for the production of engine and transmission components. In the aerospace industry, high-strength CNC turned parts are manufactured from special alloys. Medical technology uses CNC turning for implants and surgical instruments made from biocompatible materials. Other important areas include electrical engineering for contacts and connectors as well as hydraulics and pneumatics for valves and cylinders.

CNC turning is ideal for the production of rotationally symmetrical CNC turned parts, i.e. components that are round around a central axis. Typical products include shafts, axles, bolts, screws and pins that are used in machines and motors. Bushings, spacer sleeves, flanges and fittings are also classic CNC turned parts. Basically, all components whose basic shape is cylindrical, conical or spherical are predestined for CNC turning. In combination with driven tools, modern machines can also be used to produce cross bores or wrench flats in the CNC turned parts, which greatly expands their range of applications.

The biggest advantage of CNC turning is the unbeatable combination of high precision, excellent surface quality and fast production time for CNC turned parts. Compared to 3D printing, it offers a much wider choice of materials (metals, plastics) and superior mechanical strength. Compared to casting, CNC turning achieves much tighter tolerances and finer surfaces, which often makes post-processing of CNC turned parts superfluous. The high level of automation and repeat accuracy make the process extremely economical, especially for medium to high quantities, and ensure consistently high quality for each individual CNC turned part.

CNC turning is excellently suited for the entire product life cycle - from prototype to large-scale production. CNC turning is ideal for prototypes, as it enables very fast production of individual parts or very small series directly in the final material. This allows meaningful tests to be carried out. CNC turning shows its greatest strengths in series production: Thanks to high automation, short cycle times and excellent repeat accuracy, thousands of identical CNC turned parts can be produced extremely economically. This flexibility makes CNC turning one of the most versatile and important processes for the production of CNC turned parts.

Forget lengthy inquiry processes. Our digital platform immediately transforms your CAD models (e.g. STEP) into an order-ready quotation. Upload your files - our system automatically analyzes the geometry and requirements. You will immediately receive a transparent, non-binding quote that you can order directly online. Efficient, fast and available around the clock.

Speed up your projects with the online production of turned parts. Our end-to-end digital process makes procurement from inquiry to delivery easier than ever. With direct access to immediately available capacities in our huge manufacturing network, you benefit not only from unbeatably short delivery times, but also from significant cost advantages. Access an immense selection of materials and technologies and experience maximum efficiency.

Production exactly according to your needs. Whether prototype, sample or a single spare part - our production is available for you from batch size 1. We deliberately avoid minimum order quantities so that you enjoy maximum freedom when implementing your projects and can realize any idea immediately.

We ensure tolerances through our ISO 9001-certified process. Every drawing is technically checked and the order is placed with the appropriate, qualified manufacturer with the help of AI. Modern 3D measurement technology and optional measurement protocols guarantee compliance.

Yes, absolutely. Our large network includes highly specialized partners with many years of experience in machining demanding materials. Machining titanium, Inconel or hardened steels is part of our and our customers' daily routine.

Yes, of course. On request, we can supply your components with the corresponding material certificates. Inspection certificate 3.1 in accordance with EN 10204 is most frequently chosen. It guarantees traceability and the specific material properties of your batch.