Chiseling

Slotting is a machining method that involves removing material from the surface of a workpiece using a tool called a chisel. This process is performed by reciprocating the tool in a straight line, which removes thin layers of material from the machined surface. Slotting is mainly used for machining flat surfaces, grooves, and for making internal shapes such as keys, gear teeth, and splines.

Chiseling ability
Slotting channels for inlets and multi-slots	Slotting height up to 350mm

How does chiseling work?

Slotting is performed on special machines called slotting machines. In this process, the tool (chisel) moves linearly relative to the workpiece, and the material is removed as a result of the cutting force. Slotting machines can work in different planes - vertical or horizontal - depending on the type of operation performed. Machining consists of a successive pass of the chisel over the machined surface, with the tool being moved by a small amount in the transverse direction after each pass, which allows for cutting on a larger width.

Chiseling Applications

Slotting is widely used in industry, especially where precise shaping of flat surfaces or grooves is required. Common applications of this technique include:

Creating keyways in mechanical components such as shafts and bushings,
Machining gear teeth to provide precise alignment with other components in transmissions,
Forming internal surfaces, including holes with unusual cross-sections, such as splines,
Machining irregularly shaped surfaces and grooves that are difficult to produce by other methods.

Advantages of chiseling

Precision – chiselling allows for the production of details with very high dimensional accuracy and surface quality.
Internal machining – this technique allows for the machining of internal features, such as grooves or holes with complex profiles, which are difficult to achieve using other cutting methods.
Versatility – chiselling can be used on a variety of materials, including steel, metal alloys, aluminum, and even plastics.

Types of slotting machines

Vertical slotting machines (cutters) – the tool moves vertically, and the workpiece can be moved horizontally.
Horizontal slotting machines – the tool works horizontally, which allows for cutting long surfaces or grooves.
Hobbing slotting machines – used for machining gears and splines, enable cutting complex shapes based on the tool envelope.

Summary

Slotting is a precise, yet time-consuming machining method that is used wherever high accuracy and shaping of complex surfaces are required. This technology allows the creation of complex internal shapes, grooves and gear teeth, which makes it indispensable in many branches of the mechanical industry.