Cut up

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Logo of the German Institute for Standardization DIN 8588
Area Separating manufacturing process
title Cut up
Brief description: Classification, subdivision, terms
Latest edition 9.2003

According to DIN standard DIN 8588, dividing is the partial or complete separation of a body or system into two or more parts. In manufacturing technology , it is in accordance with DIN 8580ff . Standardized manufacturing processes represent a group of the main group cutting . Cutting processes have in common that they process the material mechanically without chip formation .

Cutting according to DIN 8588

A distinction is made between shear blades , columns , cracking , breaking , fracture separation and wedge cutting . With wedge cutting, a distinction is also made between knife cutting and bite cutting.

Laser cutting , which is part of the ablation process, is often incorrectly assigned here.

Cutting process

Logo of the German Institute for Standardization DIN 9870-2
Area Terms of stamping technology
title Terms of punching technology; Manufacturing processes and tools for cutting
Brief description: Divide, terms
Latest edition 10.1972

In DIN 9870-2 manufacturing processes and tools for cutting , the way in which the cut is made in the workpiece are listed. Fineblanking does not count here, although it has its own kinematics, as it is viewed as an independent process due to its increasing popularity and is also dealt with separately in DIN 8588 together with re-cutting.

One further distinguishes:

  • Cutting: Cutting is the single-stroke cutting of a self-contained cutting line. The workpiece produced is the inner part, the outer part is considered waste. A workpiece with an external shape is thus produced.
  • Punching: Punching takes place in one stroke along a self-contained cutting line. A workpiece with an inner shape is produced, that is, the outer part is the workpiece produced and the inner part the waste.
  • Trimming: When trimming, only edges, machining allowances and the like are completely separated from the workpiece. The cutting line can be both open and closed.
  • Deburring: If the burrs are removed from drop forgings , in contrast to normal sheet metal parts, we do not speak of trimming, but of deburring.

See also