Turning

Turning tools are also typically equipped with replaceable indexable inserts, which are attached to turning toolholders that come in both square and cylindrical shank variants, but also as direct options for Capto or VDI mounting systems. Cylindrical shank turning holders are used in internal turning and are usually made of either steel or carbide tool holders. Carbide tool holders are generally used for long shank lengths where tool vibration is an issue. To prevent vibration caused by turning, there are also various solutions in CAM software and machine tool features, such as variable chip thickness or adjusting spindle speed during machining. Vibration can also be prevented using vibration damped turning holders. Different turning methods include facing, rough turning, finish turning, parting off, grooving, dynamic turning, thread turning, and PrimeTurning™.

Turning is one of the most traditional machining methods for roughing and finishing materials in the metal industry. The selection of turning tools is critically important for the quality and efficiency of the work. Tools vary for external and internal turning, thread turning, grooving, and part-off turning.

External turning tools are used for machining the outer diameters of shafts, while internal turning tools are designed to machine the internal diameters of workpieces, such as holes. Turning frequently utilizes indexable inserts, which allow for quick tool changes and offer various tool geometries for different materials. For internal turning, longer and narrower tools are used that can reach deep into even small diameters.

Thread turning is a turning method where a thread is machined onto the external or internal diameter of material. Special thread turning tools are needed for this process, designed to form precise and consistent thread profiles. The cutting edges of thread turning tools are made to match the pitch and shape of the thread, allowing for the production of both metric and imperial threads.

Grooving is a process where a groove or multiple parallel grooves are turned into the workpiece. Grooving tools are often narrow and can come in different shapes depending on the groove size and form. There is a variety of groove turning tool widths and cutting profiles available, enabling the turning of many types of grooves.

Part-off turning is a process where the turned workpiece is cut off from the unmachined material. The tools used for this operation are generally narrow.

The selection of suitable turning tools depends on many factors, such as the quality of the material being machined, the desired turning method, and the features of the turning center. Whether it's for external or internal turning, thread turning, grooving, or part-off turning, it's crucial to choose appropriate tools that allow for high-quality and efficient machining with reliable machining processes. With modern turning tools and the right technique, you can achieve excellent results in your turning work.

PrimeTurning™ is a new turning method developed in collaboration by Mastercam and Sandvik Coromant. The new innovative PrimeTurning™ method uses CoroTurn® Prime tools. These tools allow turning in Mastercam using both traditional and PrimeTurning methods. The new PrimeTurning method enables excellent material removal and tool longevity. Efficient material removal in the PrimeTurning method is based on the tool insert's setting angle, which allows for higher feed rates compared to traditional turning. This machining method provides excellent chip control, and the tool can be used in both directions while turning, which extends tool life and reduces insert changes and production downtime.