Autogenous welding

Autogenous welding is a form of welding in which the filler material is either supplied by melting the base material or is of identical composition.[1] The weld may be formed entirely by melting parts of the base metal, and no additional filler rod is used.

There is some variation in the use of this term. Those bodies concerned with teaching the craft skill of welding tend to define it as using no filler rod, i.e. the technique is based purely on the base metal. Those concerned with the welded joint's metallurgy may make no distinction between a filler rod and the base metal, provided that the final metallurgy is identical.[1]

Most welding processes may be either autogenous or use additional filler. Some are characteristically autogenous and avoid filler. Some arc welding processes, including such major process such as manual metal arc (stick) welding and MAGS (wire-feed) welding, cannot be used autogenously, as they rely on the consumption of a filler rod to provide the arc.

Some processes are typically autogenous. These include some gas welding processes such as lead burning (although fillers may optionally be used) and oxy-acetylene welding in some positions, such as seam welding the edges of two overlapping sheets. Resistance welding, both spot welding and seam welding, is inherently autogenous, as there is no convenient way to apply a filler. Friction and laser welding have similar restrictions.

Some alloys are prone to changing their composition when heated, particularly a loss of zinc from brass by its evaporation as vapour. In these cases, an excess of 2–3% extra zinc may be provided in the filler rod to compensate.[2] Silicon may also be used as an additive to reduce this loss.[2]

A few materials, such as the HY-80 series of high-strength steels, require a non-autogenous process to control their metallurgy.[3] However, advanced processes, such as hybrid laser arc welding, have been used to achieve the same effect autogenously.[3]

References

  1. ^ a b The Welding, Brazing and Soldering of Copper and its Alloys (4th ed.). England: Copper Development Association. 1956 [1952]. p. 29. CDA Publication Nº47.
  2. ^ a b Welding, Brazing and Soldering of Copper and its Alloys (1952), pp. 83–84.
  3. ^ a b Roepke, C (August 2009). "Hybrid Laser Arc Welding of HY-80 Steel" (PDF). Supplement to Weld. J. 88: 159–167.

Read other articles:

Altice Europe

Altice Europe Création Mai 2001 Dates clés 31 janvier 2014 : introduction en bourse à Amsterdam 5 avril 2014 : rachat de SFR 2018 : scission avec Altice USA 2021 : retrait des marchés boursiers Fondateurs Patrick Drahi Forme juridique Société anonyme Action Euronext : ATC Slogan Ensemble dépassons nos limites Siège social Woerden Pays-Bas Directeurs Patrick Drahi Actionnaires Patrick Drahi (via Next Private B.V.) Activité Opérateur de télécommun...

 

羅生門 (電影)

本條目存在以下問題，請協助改善本條目或在討論頁針對議題發表看法。 此條目需要补充更多来源。 (2018年3月17日)请协助補充多方面可靠来源以改善这篇条目，无法查证的内容可能會因為异议提出而被移除。致使用者：请搜索一下条目的标题（来源搜索：羅生門 (電影) — 网页、新闻、书籍、学术、图像），以检查网络上是否存在该主题的更多可靠来源（判定指引）。 �...

 

Raden Kian Santang: Prahara di Langit Pajajaran

Raden Kian Santang: Prahara di Langit PajajaranGenre Drama Laga Fantasi Religi PembuatMNC PicturesSkenario Sakti Wibowo (Eps. 1—10, 54—57) Apud Saepudin (Eps. 10—53, 58—61) Wanto Sabang (Eps. 61—82) Sinta Rianasari (Eps. 83—85) Sutradara Emil G. Hampp (Eps. 1—58) Jhony TRK (Eps. 59—85) Sutradara laga Roni Sundah (Eps. 1—58) Wasikun (Eps. 59—85) Pemeran Alwi Assegaf Ananda George Suheil Fahmi Rientammy Masaji Wijayanto Penggubah lagu temaSayyid Alwi Assegaf ft. SyarifLagu ...

Knowledge and Human Development Authority

Educational quality assurance agency of the Emirate of Dubai This article has multiple issues. Please help improve it or discuss these issues on the talk page. (Learn how and when to remove these template messages) This article's tone or style may not reflect the encyclopedic tone used on Wikipedia. See Wikipedia's guide to writing better articles for suggestions. (February 2020) (Learn how and when to remove this template message) The neutrality of this article is disputed. Relevant discussi...

 

趙家驤

追晉陸軍二級上將趙家驤將軍个人资料出生1910年 大清河南省衛輝府汲縣逝世1958年8月23日(1958歲—08—23)（47—48歲） † 中華民國福建省金門縣国籍 中華民國政党 中國國民黨获奖 青天白日勳章（追贈）军事背景效忠 中華民國服役 國民革命軍 中華民國陸軍服役时间1924年－1958年军衔 二級上將 （追晉）部队四十七師指挥東北剿匪總司令部參謀長陸軍�...

 

Middle Eastern theatre of World War I

Scene of action between 29 October 1914 and 30 October 1918 Middle Eastern threat of World War IPart of World War IFrom left to right: The Ottoman Shaykh al-Islām who declared Jihad against the Allied Powers; Burning oil tanks in the port of Novorossiysk after the Ottoman Empire's strike on Russian ports; Fifth Army during the Gallipoli Campaign; Third Army on the Caucasus campaign; The heliograph team of the Ottoman army in the Sinai and Palestine campaign; Ottoman soldiers during the Siege...

Jennifer Shahade

American chess and poker player Jennifer ShahadeShahade in 2002Born (1980-12-31) December 31, 1980 (age 43)Philadelphia, Pennsylvania, USTitleWoman Grandmaster (2005)FIDE rating2322 (January 2006)Peak rating2366 (April 2003) Jennifer Shahade (born December 31, 1980) is an American chess player, poker player, commentator and writer. She is a two-time United States Women's Champion and has the FIDE title of Woman Grandmaster. Shahade is the author of the books Chess Bitch, Play L...

 

Jisei no ku

Poema de despedida de Kuroki Hiroshi, un soldado japonés que murió en un accidente de submarino el 7 de septiembre de 1944. Un poema de despedida (辞世の句, jisei no ku?) es un poema escrito poco antes de la muerte de su autor. Es una tradición entre las personas alfabetizadas de varias culturas, especialmente en la cultura de Japón. Se trata de un género de poesía que se desarrolló en las tradiciones literarias de las culturas del este asiático, principalmente en Japón, así com...

 

Don't Waste Your Time (Kelly Clarkson song)

2007 single by Kelly ClarksonDon't Waste Your TimeSingle by Kelly Clarksonfrom the album My December B-sideFadingReleasedNovember 16, 2007 (2007-11-16)Recorded2007GenrePop rockLength3:35LabelRCASongwriter(s)Kelly ClarksonJimmy MesserMalcolm PardonFredrik RinmanProducer(s)David KahneKelly Clarkson singles chronology One Minute (2007) Don't Waste Your Time (2007) My Life Would Suck Without You (2009) Music videoDon't Waste Your Time on YouTube Don't Waste Your Time is a song by A...

Charles Gordon-Lennox, 11th Duke of Richmond

British aristocrat Charles March redirects here. For the FTC chair, see Charles H. March. His GraceThe Duke of RichmondCBE DLThe Duke in 2011BornCharles Henry Gordon-Lennox (1955-01-08) 8 January 1955 (age 69)Title11th Duke of Richmond11th Duke of Lennox11th Duke of Aubigny6th Duke of Gordon etcSpouses Sally Clayton ​ ​(m. 1976; div. 1989)​ Hon. Janet Elizabeth Astor ​ ​(m. 1991)​ Children5ParentsCharles G...

 

Tyrconnell

400s–1607 kingdom of Gaelic Ireland For other uses, see Tyrconnell (disambiguation). This article includes a list of general references, but it lacks sufficient corresponding inline citations. Please help to improve this article by introducing more precise citations. (June 2021) (Learn how and when to remove this message) TyrconnellTír Chonaill (Irish)5th century–1607 Coat of arms Tyrconnell in the early 16th centuryStatusTúatha of Ailech (until 1185)CapitalKilmacrennan (royal inau...

 

Dinkey Lakes Wilderness

Protected wilderness area in California, United States This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed.Find sources: Dinkey Lakes Wilderness – news · newspapers · books · scholar · JSTOR (July 2017) (Learn how and when to remove this message) Dinkey Lakes WildernessIUCN category Ib (wilderness area)Aerial view looking sou...

غرينادا

طُلب دمج تاريخ المسيحية في غرينادا إلى هذه الصفحة لأنها تم دمج الصفحتين هذه العمليّة يجب أن يقوم بها إداريٌ. خُذ بعين الاعتبار إضافة {{نسخ:Uw-c&pmove|المسيحية في غرينادا|to=غرينادا}} ~~~~ في صفحة نقاش المحرر الذي أجرى علمية النقل عبر النسخ واللصق، مع إضافة عنوان مُناسب للت�...

 

Tindik segitiga

Tindik segitiga Tindik segitiga (bahasa Inggris: Triangle piercing) adalah tindik kelamin wanita yang dibuat pada bagian atas vulva. Tindik ini terletak di bawah klitoris, dibuat dengan menembuskan jarum secara mendatar di bagian pertemuan antara tudung klitoris dengan labia minor.[1][2][3] Nama triangle atau segitiga berasal dari bentuk pertemuan labia dengan tudung klitoris, yang tampak seperti segitiga apabila dijepit. Tindik ini dapat menambah sensasi dalam stimula...

 

Нанкинский университет

Нанкинский университет Год основания 1915 Сайт nju.edu.cn/main.htm  Медиафайлы на Викискладе Нанки́нский университе́т (Наньцзинский университет) (кит. трад. 南京大學, упр. 南京大学, пиньинь Nánjīng Dàxué; в обиходе кит. упр. 南大, пиньинь Nándà) — одно из самых старых и престижных заведе...

Tribune Broadcasting

American television and radio broadcast company (1924–2019) Tribune Broadcasting Company, LLCFormerlyWGN Incorporated(1924–1966)WGN Continental Broadcasting Company(1966–1981)Company typeSubsidiaryIndustryBroadcast televisionradioFounded1924; 100 years ago (1924)DefunctSeptember 19, 2019; 4 years ago (2019-09-19)FateAcquired by NexstarSuccessorNexstar Media GroupHeadquarters515 North State Street, Chicago, Illinois, United StatesArea servedUnited Sta...

 

Charles James (designer)

British-born fashion designer This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed.Find sources: Charles James designer – news · newspapers · books · scholar · JSTOR (November 2018) (Learn how and when to remove this message) Charles JamesEvening gown, 1955, RISD MuseumBornCharles Wilson Brega James(1906-07-18)18 July 190...

 

List of highways numbered 287

Route 287 or Highway 287 may refer to: This list is incomplete; you can help by adding missing items. (August 2008) Brazil BR-287 Canada Manitoba Provincial Road 287 Quebec Route 287 Japan Japan National Route 287 United States Interstate 287 U.S. Route 287 Alabama State Route 287 Arizona State Route 287 Connecticut Route 287 Georgia State Route 287 (former) Iowa Highway 287 (former) Kentucky Route 287 Maryland Route 287 Minnesota State Highway 287 Montana Highway 287 New York State Route 28...

Roman sculpture

Sculpture of ancient Rome Allegorical scene from the Augustan Ara Pacis, 13 BCE, a highpoint of the state Greco-Roman style The study of Roman sculpture is complicated by its relation to Greek sculpture. Many examples of even the most famous Greek sculptures, such as the Apollo Belvedere and Barberini Faun, are known only from Roman Imperial or Hellenistic copies. At one time, this imitation was taken by art historians as indicating a narrowness of the Roman artistic imagination, but, in the ...

 

Fotbollsallsvenskan 2018

Allsvenskan IF Elfsborg – Malmö FF (1–2) i en match på Borås Arena.Säsong2018Nya lag för säsongenIF BrommapojkarnaDalkurd FFTrelleborgs FFVinnareAIK(6:e allsvenska titeln)(12:e SM-titeln)NedflyttadeDalkurd FFTrelleborgs FFIF Brommapojkarna (via kval)Champions LeagueAIKEuropa LeagueIFK NorrköpingMalmö FFStatistikSpelade matcher240Totalt antal mål654 (2,7 per match)Bästa målgörare Paulinho (20 mål)Största hemmavinstHäcken 6–0 Brommapojkarna(26 augusti 20...