Grooves

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When grooves are called fine grooves on a surface. The word "grooves" is primarily used in the plural and denotes an accumulation of tear marks.

Surface technology

According to DIN EN ISO 8785, a groove is a surface imperfection that represents a linear depression with a rounded or flat base, in contrast to a crack with a sharp base or a scratch with an irregular shape in an unspecified direction. When assessing the shape deviations from the ideal surface, grooves according to DIN 4760 represent shape deviations of the 4th order and are therefore part of the roughness (3rd to 5th order). Scoring is usually the result of chip formation . A distinction must be made here between grooves and grooves that result from the ideal geometric shape of the tool cutting edge and are third-order deviations in shape. Scoring often occurs running parallel in a flock (group) of several.

As an accompanying phenomenon

In firearms, when the projectiles are fired, grooves are created as specific features of one firearm. Here the grooves have their origin from notches in the cartridge cases and after firing through the inner wall of the barrel and are particularly important in forensic science in order to be able to assign fired projectiles to a firearm.

science

As either deliberate decorations or as traces of processing or wear and tear, grooves can be found as an indication of the presence of an artifact . For the archeology and palaeontology of early history, they provide information on the type and technique of processing the finds.

In the geosciences, grooves are called ordered traces of erosion , such as those found in glacier grinding or wind grinding , but also in water erosion on soluble rocks such as limestone (but called carts there). From them, recent or fossil geophysical movements can be reconstructed.

In plant identification, grooves are a species identification feature according to which plants are classified. For example, the stems of certain plants may be “grooved”, while others may not be rubbed or smooth. Grooves on antlers also serve as a defining feature, but in animals .

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supporting documents

  1. ↑ Explanation of the word .
  2. ↑ Who knows what .

Web links

Wiktionary: Grooves  - explanations of meanings, word origins, synonyms, translations

See also