Definitions for jig borer
jig bor·er

WiktionaryRate this definition:0.0 / 0 votes

1. jig borernoun

   A type of machine tool invented during the World War I era to make possible the quick-yet-very-precise location of hole centers.

WikipediaRate this definition:0.0 / 0 votes

1. Jig borer

   The jig borer is a type of machine tool invented at the end of World War I to enable the quick and precise location of hole centers. It was invented independently in Switzerland and the United States. It resembles a specialized species of milling machine that provides tool and die makers with a higher degree of positioning precision (repeatability) and accuracy than those provided by general machines. Although capable of light milling, a jig borer is more suited to highly accurate drilling, boring, and reaming, where the quill or headstock does not see the significant side loading that it would with mill work. The result is a machine designed more for location accuracy than heavy material removal. A typical jig borer has a work table of around 400 by 200 millimetres (15.7 in × 7.9 in) which can be moved using large handwheels (with micrometer-style readouts and verniers) on particularly carefully made shafts with a strong degree of gearing; this allows positions to be set on the two axes to an accuracy of 0.0001 inches (2.5 μm). It is generally used to enlarge to a precise size smaller holes drilled with less accurate machinery in approximately the correct place (ie with the small hole strictly within the area to be bored out for the large hole). Jig borers are limited to working materials that are still soft enough to be bored. Often a jig is hardened; for a jig borer this requires the material to be bored first and then hardened, which may introduce distortion. Consequently the jig grinder was developed as a machine with the precision of the jig borer, but capable of working materials in their hardened state.

WikidataRate this definition:0.0 / 0 votes

1. Jig borer

   The jig borer is a type of machine tool invented at the end of World War I to make possible the quick-yet-very-precise location of hole centers. It was invented independently in Switzerland and the United States. It can be viewed as a specialized species of milling machine that provided tool and die makers with a higher degree of positioning precision and accuracy than those general machines had previously provided. A typical jig borer had a work table of around 400 x 200 mm, which can be moved using large handwheels on particularly carefully made shafts with a strong degree of gearing; this allowed positions to be set on the two axes to an accuracy of 0.0001 inch. It was generally used to enlarge to a precise size smaller holes drilled with less accurate machinery in approximately the correct place.

How to pronounce jig borer?

1. Alex

   US English

   David

   US English

   Mark

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   Daniel

   British

   Libby

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   Mia

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   Karen

   Australian

   Hayley

   Australian

   Natasha

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   Veena

   Indian

   Priya

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   Neerja

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   Zira

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   Oliver

   British

   Wendy

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   Fred

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   Tessa

   South African

How to say jig borer in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of jig borer in Chaldean Numerology is: 5

2. Pythagorean Numerology

   The numerical value of jig borer in Pythagorean Numerology is: 3

References

1. ^ Wiktionary
   https://en.wiktionary.org/wiki/Jig_Borer
2. ^ Wikipedia
   https://en.wikipedia.org/wiki/Jig_Borer
3. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=jig borer