Piercing

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piercing

[′pirs·iŋ]
(engineering)

Piercing

 

(1) An operation in forging and stamping carried out on presses and hammers to produce a hole or depression in an item by pressing a solid or hollow piercing tool or punch into the item. Piercing may also be used in preparation for subsequent hole expansion or broaching of billets on a mandrel and for preliminary marking of a through hole to be produced by subsequent punching.

(2) An operation performed with dies using a sharp-edged punch to remove the inner burr remaining in stamped objects after marking a through hole on them.

(3) An operation in the production of seamless pipe carried out on presses using a piercing tool or on piercing mills using a mandrel to obtain hollow tubing from ingots or billets.

References in periodicals archive ?
Problems were most likely to be reported in the case of tongue piercing (50%), followed by piercings of the genitals (45%) and the nipples (38%).
Problems were most likely to be reported with tongue piercings, followed by genital piercings and nipple piercings, it stated.
Five years ago, I had a mum in labour with bilateral piercings on her labia majora complete with a neat row of barbells on either side.
Jewelry is prohibited except a smooth, solid wedding band, so visible body piercings are problematic.
Postprocedure care is important in preventing most complications: "Reputable tattoo parlors and piercing salons should provide a long list of do's and don'ts on how to care for the area that was worked on, and what signs might indicate a problem," Cora C.
Whilst the actual origin of body piercings is unknown, the oldest mummified remains ever discovered had earrings, attesting to the existence of this practice 5300 years ago (Hesse, 2007).
Piercing artists will have to prove they asked for ID and were convinced the client was over 16.
12 A study22 on adolescents reported that the subjects had their piercings and tattoos executed by professionals, and another study found that 88% of the students had piercings and tattoos done by professionals and that these persons complied with the universal precautions.
Depicting typical teens and their commentary regarding deliberating a first tattoo or piercing, rationale for or against proceeding, the procedure, and afterwards would be invaluable for those planning an adornment.
Schools and many employers tend not to have very liberal views on body piercings.
In addition to his body art and faux horns, Buchholz has a record 453 piercings, many of them on his face and genitals, according to Guinness World Records.
The 55-year-old German national -- who holds a Guinness World Record for 453 piercings on his body including multiple ones on his ears, nose, lips and genitals -- was stopped at the Dubai International Airport.