Rotational cutting is a mechanical machining process where a tool with multiple sharp cutting edges rotates around an axis (typically horizontal or vertical) to remove material from a workpiece.
In more detail:
Rotational cutting, as the name suggests, leverages rotating tools to shear away material from a workpiece to achieve a desired shape or finish. It's a fundamental machining technique widely used in manufacturing. This process distinguishes itself from other cutting methods through the rotating motion of the cutting tool.
Key characteristics of rotational cutting:
- Rotating Tool: The defining feature. The cutting tool, which can be a milling cutter, drill bit, reamer, or similar, rotates to create the cutting action.
- Multiple Cutting Edges: Rotational cutting tools generally have multiple cutting edges, which allows for faster material removal compared to single-point cutting tools like those used in turning.
- Material Removal: The rotating tool engages with the workpiece, shearing away material in the form of chips.
- Versatility: Rotational cutting processes are adaptable for use on a broad spectrum of materials, including metals, plastics, and composites.
- Applications: Common applications include milling, drilling, reaming, boring, and tapping.
Examples of Rotational Cutting Processes:
| Process | Tool | Application |
|---|---|---|
| Milling | Milling cutter | Creating flat surfaces, contours, slots, and pockets. |
| Drilling | Drill bit | Creating holes. |
| Reaming | Reamer | Enlarging and finishing existing holes to precise dimensions and smooth surfaces. |
| Boring | Boring bar | Enlarging and finishing holes to precise dimensions and roundness. |
| Tapping | Tap | Creating internal threads. |
Rotational cutting is a versatile and essential process in manufacturing, enabling the creation of a wide variety of parts with diverse geometries and materials.
