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tariffa

English translation: broaching

GLOSSARY ENTRY (DERIVED FROM QUESTION BELOW)
Italian term or phrase:tariffa
English translation:broaching
Entered by: Lucrezia Amedeo

09:08 Nov 29, 2011
Italian to English translations [PRO]
Science - Mining & Minerals / Gems
Italian term or phrase: tariffa
E' una tecnica di taglio del marmo che risale al dopo medioevo. A differenza di una formella, ottenuta tramite l'escavazione di una fessura a forma di V dove posizionare dei cunei da battere per staccare la lastra di marmo, la tariffa ha il profilo ad U, talvolta con pareti leggermente divergenti.
Potrebbe essere semplicemente channel? http://www.quarryscapes.no/text/Publications/factsheet5.pdf

Grazie
Federica Meacci
Local time: 10:30
broaching
Explanation:
LA TARIFFA
La “tariffa” era un’incisione fatta con “sciubbia” e “mazzolo”, simile alla “formella” ma più stretta, meno profonda e lunga quanto la parte da eliminare.
Ultimata quest’incisione, si facevano internamente dei piccoli fori alla distanza di 5-7 cm l’uno dall’altro ed in essi si continuava a battere puntando la “sciubbia” in posizione perpendicolare, per più passaggi, finché si generavano delle sfaldature interne e la “tariffa” si sollevava staccando la parte da scartare.

http://dallascuola.direscuola.it/giornale_studenti/anno/2011...

Broaching.— In granite and other hard stones holes must be placed closer together and, as a rule, splitting across the grain is abandoned in favor of broaching. In this system, a series of holes is drilled, usually about three inches apart from centre to centre, leaving walls of three-quarters inch to two inches between, de pending upon the hardness of the rock, and a flat bit or Is subotituted for the regular steel. This has a face about three inches by three-quarters inch thick and is forged with a blunt end to crush this wall or web between the holes. Drills used for broaching must have the release which is a simple device to throw the pawls out of action and allow the drill to work without rotating. Broach channeling is the best and cheapest method of cutting out key blocks, lumps, and making wall cuts, etc., in granite quarries, where the rock is too hard to be cut advantageously with the regular channel ing machine.

http://gluedideas.com/content-collection/encyclopedia-americ...
Selected response from:

Lucrezia Amedeo
Italy
Local time: 11:30
Grading comment
Grazie!
4 KudoZ points were awarded for this answer



Summary of answers provided
3broaching
Lucrezia Amedeo


  

Answers


3 hrs   confidence: Answerer confidence 3/5Answerer confidence 3/5
broaching


Explanation:
LA TARIFFA
La “tariffa” era un’incisione fatta con “sciubbia” e “mazzolo”, simile alla “formella” ma più stretta, meno profonda e lunga quanto la parte da eliminare.
Ultimata quest’incisione, si facevano internamente dei piccoli fori alla distanza di 5-7 cm l’uno dall’altro ed in essi si continuava a battere puntando la “sciubbia” in posizione perpendicolare, per più passaggi, finché si generavano delle sfaldature interne e la “tariffa” si sollevava staccando la parte da scartare.

http://dallascuola.direscuola.it/giornale_studenti/anno/2011...

Broaching.— In granite and other hard stones holes must be placed closer together and, as a rule, splitting across the grain is abandoned in favor of broaching. In this system, a series of holes is drilled, usually about three inches apart from centre to centre, leaving walls of three-quarters inch to two inches between, de pending upon the hardness of the rock, and a flat bit or Is subotituted for the regular steel. This has a face about three inches by three-quarters inch thick and is forged with a blunt end to crush this wall or web between the holes. Drills used for broaching must have the release which is a simple device to throw the pawls out of action and allow the drill to work without rotating. Broach channeling is the best and cheapest method of cutting out key blocks, lumps, and making wall cuts, etc., in granite quarries, where the rock is too hard to be cut advantageously with the regular channel ing machine.

http://gluedideas.com/content-collection/encyclopedia-americ...

Lucrezia Amedeo
Italy
Local time: 11:30
Native speaker of: Native in ItalianItalian
PRO pts in category: 8
Grading comment
Grazie!
Notes to answerer
Asker: Grazie!Sembra che broaching e channeling (e addirittura broach channeling) siano sinonimi: http://books.google.com/books?id=nBdX0BGBEvwC&pg=PA132&lpg=PA132&dq=broach+channelling+method&source=bl&ots=bxJJWqhbUK&sig=JrIE0eBUwxk_fEKFQhGLiVB5GTQ&hl=en&ei=jdLVTuf-Aceu8gP3jon7AQ&sa=X&oi=book_result&ct=result&resnum=2&ved=0CCIQ6AEwAQ#v=onepage&q&f=false

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