Drilling
Query URLs
https://term.museum-digital.de/md-de/tag/72813
- Note
- "Drilling is a cutting process that uses a drill bit to cut a hole of circular cross-section in solid materials. The drill bit is usually a rotary cutting tool, often multi-point. The bit is pressed against the work-piece and rotated at rates from hundreds to thousands of revolutions per minute. This forces the cutting edge against the work-piece, cutting off chips (swarf) from the hole as it is drilled.
In rock drilling, the hole is usually not made through a circular cutting motion, though the bit is usually rotated. Instead, the hole is usually made by hammering a drill bit into the hole with quickly repeated short movements. The hammering action can be performed from outside the hole (top-hammer drill) or within the hole (down-the-hole drill, DTH). Drills used for horizontal drilling are called drifter drills." - (en.wikipedia.org 11.09.2020)
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Brustschild für Bohrer
Diese auch Bohrscheibe oder...
Object information
Image: Heimatmuseum Dohna - CC BY-NC-SA -
Bohrwinde mit zwei Bohrern
Die Bohrwinde (Bohrtraubel)...
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Image: Heimatmuseum Dohna - CC BY-NC-SA -
Stellmacherbeil
Breitbeil, Zimmermannsaxt....
Object information
Image: Heimatmuseum Dohna - CC BY-NC-SA -
Stellmacherbeil mit angeschweißter Schneide
Breitbeil, Zimmermannsaxt mit...
Object information
Image: Heimatmuseum Dohna - CC BY-NC-SA -
Bohrmaschine Siemens-Schuckert
Bohrmaschine aus der Nutzung...
Object information
Image: Börde-Museum Burg Ummendorf - CC BY-NC-SA
References
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