Talk:Rivet

message: How are rivets measured?  Does a 1/8" rivet have a 1/8" radius, diameter, or circumference?
:Diameter (of the shank).  --Simian, 2005-10-27, 05:06 Z
:In the aircraft industry (at least in the United States) rivet size is specified by a number that is a multiple of 1/32 of an inch. The common sizes are 3, 4, 5, 6, and 8. These would be rivets that are 3/32, 1/8, 5/32, 3/16, and 1/4 inches in diameter. For example, a NASM20470AD6 rivet would be a solid rivet with a universal head and a 3/16-inch diameter shank. "NASM20470" indicates the standard that defines the rivet which was known as MS20470 before it was adopted by NAS. "AD" indicates the rivet material which is one of the weaker but easier to drive aluminum alloys. On a drawing, this rivet would be called out as a "BJ6" which is a fastener encoding defined by NAS523.--Jebix (talk) 01:20, 17 November 2008 (UTC)
thread_title: Size

message: Nine IP vandal edits in four days suggests a need for this. When editors have to correct multiple vandal edits at one time, content can be lost. (See recent history). Comments? EdJohnston (talk) 15:21, 31 March 2008 (UTC)
thread_title:  Semi-protection needed? 

message: Self Pierce Rivets (often shortened to SPR) are designed to join two or more sheets of material together (usually metal) without the need to have a pre-existing hole - hence the name. As the rivet is driven into the materials it gradually flares within the sheet materials (with the assistance of an upsetting die) locking the material together without piercing the lower material. Typical riveting cycle time ranges from 1 to 4 seconds.
While in use in a number of industries, it is most widely known in the Automobile industry. As more automobile manufacturers look towards weight-saving, self pierce rivets are being used more due to the move towards lighter materials such as Aluminium. Unfortunately Aluminium is more difficult to spot weld than Steel, necessitating the use of self pierce rivets. The most widely publicised example is the Mark 3 Jaguar XJ8 (also known as the X350).
* The above is a small piece on Self Pierce Rivets, based on experience and the following websites to make it 'cite-able' I'm just not that experienced with WP so if someone could add it to the main page correctly with citations I'd appreciate it. Sorry but couldn't find any non-CP images.
http://www.emhart.com/products/spr.asp
http://www.henrob.co.uk/languages/english/history.htm  —Preceding unsigned comment added by Co fragment (talk • contribs) 09:40, 10 July 2008 (UTC)
thread_title:  Self Pierce Riveting 

message: A. That question can be answered in two ways, in terms of economics and performance.  High strength bolts are "A better choice" considering the cost of labor and construction.  While they are much more expensive to manufacture, the installed cost is much lower due to the increased safety and reduced efforts required by workers to install bolts.  Rivets are a low cost product, but expensive to install.  Bolts are a high priced product, but very cost effective to install.  Obviously, the cost to install is higher then the cost to produce.  As far as performance, there are few products that can match the installed strength, key features, and added benefits of a rivet.  On the otherhand, newer technologies are becoming more accepted as a cost effective alternative.
The Older Method - Hot Riveting - 
The old riveting method required a low cost rivet, to be heated to a mallable temperature at the point of use.  This required an oven running at all times during the installtion process (expensive).  In addition, these hot rivets would need to be passed to the installers via a throw and catch method, which is dangerous at high heights.  During installation, the hot rivet would be pneumatically hammered into place.  This action caused the rivet to swell or radially expand within the hole.  In addition a mushroomed headform is created on both sides.   After it is applied and as the rivet cools, the steel rivet "shrinks" and the two heads squeeze together.   This dramatically increases the tension force and the swelling of the rivet in the hole dramatically increases shear load.  
The Newer Method - High Strength Bolts - 
Recently the development of new steels allowed for the use of high strength bolts.  The are pre heat treated to a hardness that is capable of supporting the load and they are easy to remove if neccessary.  The are easy to transport and easy to install buy using a pneumatic torque control driver.  As far as economy the total installed cost is less, however, there are some direct comparisons that cannot be made to rivets.  High strength bolts do not swell in the hole and do not shrink as rivets do.  Additionally, the torque of the installation tool is very important and if over torqued can damage the threads reducing strength.  Bolts and nuts can be removed easily and can also vibrate loose over time.  The space between the bolt and the hole wall is a crevace and as a result is difficult to prevent oxidation or rust.  As a general rule, high strength bolts can be used as long as they have a tension control feature and is widely accepted as an alternative to riveting.
Only the true test of time will tell its effectiveness.  The brooklyn bridge is still standading and is one of the strongest bridges in the world.  Rivetpro (talk) 05:05, 29 January 2009 (UTC)
thread_title:  Q.  Are high-strength bolts are a better choice than rivets for many uses? 

message: size should be explain by digram
This page could use some good diagrams showing the various rivet types in cross-section.--Hooperbloob 04:00, 7 August 2005 (UTC)
thread_title: Diagrams

message: The article does not mention them. Google knows them. Were they a German invention?--SilasW (talk) 20:56, 13 Jun
These are actually studs or nails. They are fired into concrete without any pre-drilling. The exposed end may have a  thread or hook. They are not rivets.220.244.72.236 (talk) 23:41, 17 February 2016 (UTC)
replies: text: Explosive rivets were also used for blind riveting (rather than pop rivets). Compared to pop rivets they gave better expansion of the head. Yes, they were German. They were set off by touching them with somthing like a hot soldering iron. Andy Dingley (talk) 10:37, 1 May 2017 (UTC)
thread_title:  Explosive rivets 

message: The article does not descibe them--SilasW (talk) 20:57, 13 June 2009 (UTC)
thread_title:  Friction-lock rivets 

message: People THROWING red-hot rivets fresh from a furnace around building sites? This is either a joke or needs explaining...
137.205.138.179 (talk) 17:14, 7 May 2011 (UTC)
replies: text: See: http://www.criticalpast.com/video/65675054482_Tennessee-Valley-Authority_construction-of-dam_power-generation_United-States-flag and http://www.fotosearch.com/CRT706/18www/ Wizard191 (talk) 18:09, 9 May 2011 (UTC)
thread_title:  Health and Safety Fail... 

message: I was wondering why the table describing aluminium alloy rivets, their alphabetical letter, driven condition and markings is in the friction type rivet section.
These codes are use by the aerospace industry to describe plain rivets, not friction type rivets.
173.177.247.69 (talk) 23:39, 3 April 2012 (UTC)
thread_title: The table describing Al. Al. rivets

message: "On installation the rivet is placed in a punched or drilled hole, and the tail is upset, or bucked (i.e., deformed), so that it expands to about 1.5 times the original shaft diameter, holding the rivet in place. In other words, pounding creates a new "head" on the other end by smashing the "tail" material flatter, resulting in a rivet that is roughly a dumbbell shape". Can somebody please convert this gibberish to something meaningful to the layman. Means nothing to me. Seems to me it needs somebody exerting force on both ends. How is it held in place ? Rcbutcher (talk) 14:47, 25 August 2015 (UTC)
thread_title: Basic idea not explained for the layman

message: I was looking for information about Double Head Rivets (also known as Double Cap Rivets) and found none. Can we have someone add a section about leatherworking with rivets?
Thanks
WesT (talk) 18:08, 9 February 2017 (UTC)
thread_title:  Double Head Rivets 

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thread_title:  External links modified