{"id":496,"date":"2020-06-23T11:39:40","date_gmt":"2020-06-23T11:39:40","guid":{"rendered":"https:\/\/www.zillionsbuyer.com\/blog\/?p=496"},"modified":"2020-08-05T15:03:23","modified_gmt":"2020-08-05T15:03:23","slug":"what-is-the-principle-of-spot-welding","status":"publish","type":"post","link":"https:\/\/www.zillionsbuyer.com\/blog\/what-is-the-principle-of-spot-welding\/","title":{"rendered":"What is the principle of spot welding"},"content":{"rendered":"\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"302\" height=\"338\" src=\"https:\/\/www.zillionsbuyer.com\/blog\/wp-content\/uploads\/2020\/08\/Explain-Spot-Welding-In-Detail.jpg\" alt=\"\" class=\"wp-image-2417\" srcset=\"https:\/\/www.zillionsbuyer.com\/blog\/wp-content\/uploads\/2020\/08\/Explain-Spot-Welding-In-Detail.jpg 302w, https:\/\/www.zillionsbuyer.com\/blog\/wp-content\/uploads\/2020\/08\/Explain-Spot-Welding-In-Detail-268x300.jpg 268w\" sizes=\"auto, (max-width: 302px) 100vw, 302px\" \/><\/figure>\n\n\n\n<ul class=\"wp-block-list\"><li><strong><a href=\"https:\/\/www.zillionsbuyer.com\/product\/4071\/standard-variable-voltage-auto-transformer-dimmerstat-air-cooled-single-phase-portable-closed-type-15-amphsn-8504\">Spot\nwelding<\/a><\/strong> is the most widely used form of resistance welding.<\/li><li>It is characterized by low cost, speed and dependability\nmaking it a common electrical welding process.<\/li><li>Spot welding is done at certain points on metallic sheets.<\/li><li>The pieces to be welded are held between the two\nelectrodes.&nbsp; the <strong>spot welding<\/strong> process. When current passes through the electrodes, a\nspot weld is produced between thesheets.<\/li><li>this type of welding the workpieces to be welded are pressed\ntogether by mechanical pressure exerted through electrodes.<\/li><li>Electrodes are made up of pure copper er alloy of copper<\/li><li>The mechanical pressure may be developed by pneumatic\npressure or by hydraulic pressure.<\/li><li>The pressure remains applied till the weld cools and have\nsufficient strength<\/li><li>Current required is above 4500 A and the voltage between the\nelectrodes is usually less than 2 volts. The open circuit voltage is less than\n12 volts.<\/li><li>The time period of current is about 1\/50 seconds&nbsp; for each 0,25 mm of total thickness of the\ntwo shorts to be joined<\/li><li>To word the heating of junction faces between electrode and\nwork, the electrodes are made up of material having high electrical as well as\nthermal conductivity.<\/li><li>Water-cooled electrodes are used to avoid the electrode\nsticking.<\/li><li>Efficient <strong>spot welds<\/strong>\nare possible only by a correct combination of current, pressure, voltage and\nwelding time<\/li><li>Generally&nbsp; By head\nDeveloped is given by<\/li><li>H=I<sup>2<\/sup>PR Joules.<\/li><\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Spot welding is the most widely used form of resistance welding. It is characterized by low cost, speed and dependability making it a common electrical welding process. Spot welding is done at certain points on metallic sheets. The pieces to be welded are held between the two electrodes.&nbsp; the spot welding process. When current passes [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":497,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[44],"tags":[130,131],"class_list":["post-496","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-electrical-engineering","tag-spot-welding","tag-spot-welds"],"_links":{"self":[{"href":"https:\/\/www.zillionsbuyer.com\/blog\/wp-json\/wp\/v2\/posts\/496","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.zillionsbuyer.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.zillionsbuyer.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.zillionsbuyer.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.zillionsbuyer.com\/blog\/wp-json\/wp\/v2\/comments?post=496"}],"version-history":[{"count":2,"href":"https:\/\/www.zillionsbuyer.com\/blog\/wp-json\/wp\/v2\/posts\/496\/revisions"}],"predecessor-version":[{"id":2418,"href":"https:\/\/www.zillionsbuyer.com\/blog\/wp-json\/wp\/v2\/posts\/496\/revisions\/2418"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.zillionsbuyer.com\/blog\/wp-json\/wp\/v2\/media\/497"}],"wp:attachment":[{"href":"https:\/\/www.zillionsbuyer.com\/blog\/wp-json\/wp\/v2\/media?parent=496"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.zillionsbuyer.com\/blog\/wp-json\/wp\/v2\/categories?post=496"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.zillionsbuyer.com\/blog\/wp-json\/wp\/v2\/tags?post=496"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}