{"id":1548,"date":"2015-10-09T16:20:05","date_gmt":"2015-10-09T16:20:05","guid":{"rendered":"https:\/\/www.electrexwelding.com\/weding-visual-inspection\/"},"modified":"2020-01-30T16:57:28","modified_gmt":"2020-01-30T16:57:28","slug":"weding-visual-inspection","status":"publish","type":"post","link":"https:\/\/www.electrexwelding.com\/myelectrexen\/weding-visual-inspection\/","title":{"rendered":"Weding Visual Inspection"},"content":{"rendered":"\n

There are many ways to inspect a weld, but one of the simplest, practical to do, is the visual inspection. This is surely a non-destructive testing, which lets you monitor what is happening on the surface with the naked eye or through a magnifying glass. There are other techniques such as radiographic testing or ultrasound testing, which should be part of the quality proceedings. The weld bead, its shape and form, is a major defect indicator in a weld, but not the only: the heat-affected zone, the presence of projections, cracks or distortions in the workpiece, among others are also indicators of welding quality. The most common defects in a weld joint may be due to the following causes: <\/p>\n\n

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Falta de penetra\u00e7\u00e3o<\/strong>\u00a0– corrente ou velocidade de soldadura muito baixas– abertura excessiva da junta– chanfro inadequado– grande espessura da pe\u00e7a de trabalho– dist\u00e2ncia excessiva entre o el\u00e9ctrodo e a pe\u00e7a de trabalho– posi\u00e7\u00e3o ou movimento do el\u00e9ctrodo inadequados– di\u00e2metro do el\u00e9ctrodo inadequado <\/p>\n\n

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Mordedura:<\/strong>\u00a0– corrente ou velocidade de soldadura demasiado elevadas <\/p>\n\n

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Prepara\u00e7\u00e3o incorrecta da junta:<\/strong>\u00a0– chanfro inadequado– desalinhamento das pe\u00e7as a soldar <\/p>\n\n

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Fissuras:<\/strong>\u00a0– Crateras no final da soldadura– tipo de el\u00e9ctrodo inadequado– el\u00e9ctrodo h\u00famido– grande espessura da pe\u00e7a de trabalho– chanfro incorrecto <\/p>\n\n

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Excesso de respingos:<\/strong>\u00a0– corrente de soldadura muito elevada– grande dist\u00e2ncia entre el\u00e9ctrodo e a pe\u00e7a de trabalho– pe\u00e7a suja- el\u00e9ctrodo h\u00famido <\/p>\n\n

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Inclus\u00e3o de esc\u00f3ria:<\/strong>\u00a0– esc\u00f3ria n\u00e3o removida durante passes ou na troca de el\u00e9ctrodo– posi\u00e7\u00e3o ou \u00e2ngulo de el\u00e9ctrodos inadequados– di\u00e2metro do el\u00e9ctrodo muito elevado ou chanfro muito estreito <\/p>\n\n

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Porosidade:<\/strong>\u00a0– Pe\u00e7a suja, enferrujada ou h\u00famida– corrente de soldadura incorrecta– velocidade de soldadura elevada– dist\u00e2ncia excessiva entre o el\u00e9ctrodo e a pe\u00e7a de trabalho– el\u00e9ctrodo h\u00famido <\/p>\n\n

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Distor\u00e7\u00e3o de contrac\u00e7\u00e3o e angular:<\/strong>\u00a0– corrente ou velocidade de soldadura demasiado elevadas <\/p>\n","protected":false},"excerpt":{"rendered":"

There are many ways to inspect a weld, but one of the simplest, practical to do, is the visual inspection. This is surely a non-destructive testing, which lets you monitor what is happening on the surface with the naked eye or through a magnifying glass. There are other techniques such as radiographic testing or ultrasound […]<\/p>\n","protected":false},"author":4,"featured_media":966,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[200],"tags":[],"_links":{"self":[{"href":"https:\/\/www.electrexwelding.com\/myelectrexen\/wp-json\/wp\/v2\/posts\/1548"}],"collection":[{"href":"https:\/\/www.electrexwelding.com\/myelectrexen\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.electrexwelding.com\/myelectrexen\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.electrexwelding.com\/myelectrexen\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.electrexwelding.com\/myelectrexen\/wp-json\/wp\/v2\/comments?post=1548"}],"version-history":[{"count":4,"href":"https:\/\/www.electrexwelding.com\/myelectrexen\/wp-json\/wp\/v2\/posts\/1548\/revisions"}],"predecessor-version":[{"id":1552,"href":"https:\/\/www.electrexwelding.com\/myelectrexen\/wp-json\/wp\/v2\/posts\/1548\/revisions\/1552"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.electrexwelding.com\/myelectrexen\/wp-json\/wp\/v2\/media\/966"}],"wp:attachment":[{"href":"https:\/\/www.electrexwelding.com\/myelectrexen\/wp-json\/wp\/v2\/media?parent=1548"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.electrexwelding.com\/myelectrexen\/wp-json\/wp\/v2\/categories?post=1548"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.electrexwelding.com\/myelectrexen\/wp-json\/wp\/v2\/tags?post=1548"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}