Cylindrical grinding

Cylindrical grinding will produce perfectly cylindrical surfaces.

A distinction is made between

  • internal cylindrical grinding and
  • external cylindrical grinding.

Internal cylindrical grinding

As with external cylindrical grinding, the following subdivision is also made with internal cylindrical grinding:

  • Internal cylindrical transverse grinding (plunge grinding)
  • Transverse ? internal ? profile grinding
  • Internal cylindrical longitudinal grinding

Internal cylindrical grinding generally features a small grinding tool (grinding pencil) working in a hole. In most cases the diameters are less than 100 mm. The grinding tool therefore has an even smaller diameter.

External cylindrical grinding

In external cylindrical grinding between peaks, the workpiece is clamped in centering fixtures on the face and driven using a workpiece carrier.

External cylindrical grinding is subdivided into:

  • Peripheral grinding in deep grinding
  • Peripheral grinding in pendulum grinding
  • Face grinding

Peripheral grinding in deep grinding

Deep grinding is a method of grinding where the feed motion is relatively large and the feed rate is correspondingly small. The workpiece shape is ground with a large feed motion or from the solid material. 
Deep grinding is used for machining turbine blades, slots or profiles, rotors, and camshafts.

Use with:

  • Open-pore peripheral wheels with low hardness

Advantages compared with pendulum grinding:

  • Better surface finish to the workpieces
  • Less wear on the grinding wheels
  • Shorter grinding times as there are no empty runs or table reversing times

Peripheral grinding in pendulum grinding

Reciprocating feed motion. The feed motion takes place progressively in small steps with a relatively fast feed rate. Peripheral grinding in pendulum grinding is used for machining shafts, rolls, and shanks.

Use with:

  • Peripheral wheels

Face grinding

Use with:

  • Cup wheels