{"id":3688,"date":"2026-04-27T20:43:43","date_gmt":"2026-04-27T13:43:43","guid":{"rendered":"https:\/\/smed.petra.ac.id\/?post_type=faculty-post&#038;p=3688"},"modified":"2026-04-27T20:43:43","modified_gmt":"2026-04-27T13:43:43","slug":"studi-pengaruh-magnetic-arc-blow-pada-hasil-las-tig-baja-aisi-1021","status":"publish","type":"faculty-post","link":"https:\/\/smed.petra.ac.id\/zh\/faculty-post\/studi-pengaruh-magnetic-arc-blow-pada-hasil-las-tig-baja-aisi-1021\/","title":{"rendered":"Studi Pengaruh Magnetic Arc Blow  Pada Hasil Las TIG Baja AISI 1021"},"content":{"rendered":"<p>Cacat dan bentuk deposit hasil las busur listrik dipengaruhi oleh banyak faktor. Salah<br \/>\nsatunya yang sering tidak diketahui adalah adanya pengaruh magnetic arc blow. Magnetic arc<br \/>\nblow dengan variasi penempatan ground dan besar arus las dipelajari dalam penelitian ini<br \/>\ndengan mengamati pengaruhnya terhadap cacat dan mengukur penampang deposit las yang<br \/>\ndihasilkan. Proses las yang diamati adalah las TIG pada baja AISI 1021 dengan gas pelindung<br \/>\nargon dengan polaritas lurus (DCSP).<br \/>\nHasil foto makro dan pengukuran menunjukkan magnetic arc blow berpengaruh kuat pada<br \/>\nukuran dan bentuk deposit las pada potongan pertama menggunakan arus 200 A serta<br \/>\npenempatan ground pada awal proses pengelasan. Cacat las undercut dan incomplete penetration<br \/>\nadalah cacat yang umum dijumpai pada semua potongan. Sedangkan dominasi cacat porositas<br \/>\npada potongan pertama lasan dengan arus 200 A diduga karena kurangnya ruang perlindungan<br \/>\ngas dalam daerah las.<br \/>\nInklusi tungsten banyak terjadi pada arus 200 A karena melelehnya ujung elektroda tungsten<br \/>\nakibat input panas tinggi. Pada akhir pengelasan selalu dijumpai crater dan percikan. Kedua<br \/>\njenis cacat ini juga diyakini disebabkan oleh backward arc blow yang cukup besar terjadi pada<br \/>\nakhir proses lasan.<\/p>","protected":false},"author":27,"featured_media":0,"template":"","class_list":["post-3688","faculty-post","type-faculty-post","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Studi Pengaruh Magnetic Arc Blow Pada Hasil Las TIG Baja AISI 1021 - Sustainable Mechanical Engineering and Design<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/smed.petra.ac.id\/zh\/faculty-post\/studi-pengaruh-magnetic-arc-blow-pada-hasil-las-tig-baja-aisi-1021\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Studi Pengaruh Magnetic Arc Blow Pada Hasil Las TIG Baja AISI 1021 - Sustainable Mechanical Engineering and Design\" \/>\n<meta property=\"og:description\" content=\"Cacat dan bentuk deposit hasil las busur listrik dipengaruhi oleh banyak faktor. Salah satunya yang sering tidak diketahui adalah adanya pengaruh magnetic arc blow. Magnetic arc blow dengan variasi penempatan ground dan besar arus las dipelajari dalam penelitian ini dengan mengamati pengaruhnya terhadap cacat dan mengukur penampang deposit las yang dihasilkan. 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