Hard turning on a lathe

Hard turning enables the machining of materials with a hardness of up to 72 HRc. This technology offers considerable advantages, as it reduces the number of necessary process steps and therefore increases the productivity of your manufacturing process enormously. For example, grinding can be replaced by hard turning on Benzinger lathes in both smooth and interrupted cuts. Ceramics and carbide, for example, can also be machined highly economically.
In addition, our turning-milling machines offer the possibility of machining complex components efficiently and precisely. In addition to hard turning, the same machines can also be used for milling, drilling, reaming and thread cutting in hardnesses up to 72HRc, which further increases flexibility and efficiency.
These processes are particularly suitable for machining hardened steel, hardened cast iron, ceramics and carbide.
By using these multi-purpose machining techniques, you can not only save time and money, but also significantly increase the flexibility and efficiency of your production processes.

Replacing grinding with hard turning
Dry machining possible with hard turning lathes
The investment by hard turning is significantly lower than for grinding
Higher flexibility due to specific cutting edge

Replacing grinding with hard turning has already proven its worth in numerous applications.

Hard turning proves to be particularly advantageous.
Due to the fact that hard turning reduces investment and operating costs by eliminating the need for costly grinding machines. Throughput times are shorter with hard turning. Components are finished on only one machine in one process.
Hard-turned components are often more accurate than ground ones because there are no shape errors due to incorrectly profiled grinding wheels. In hard turning, the shape accuracy depends solely on the NC axes of the lathe. In addition, hard turning is more flexible.

It is possible to machine any contours that cannot be achieved by form grinding due to grinding wheel profiles that cannot be dressed. In addition, hard turning usually involves dry machining. This hard turning method eliminates the need for costly cleaning and drying of the finished workpieces.
In hard turning, the surface quality can also be optimized with the aid of the technology parameters cutting speed and feed rate. In this way, hard turning can also achieve mirror-smooth surfaces of less than 2 to 3µm in shape on curved and profiled workpiece contours.