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The Effect of AC (alternating current) and DC (direct current) on Bend Testing Results of Low Carbon Steel Welding Joints

Teknomekanik · Vol. 3 No. 2 (2020) · hlm. 56–61

DOI
10.24036/teknomekanik.v3i2.6272
ISSN
2621-8720, 2621-9980
Terbit
2020-12-10
Penerbit
Universitas Negeri Padang
Bahasa
eng

Abstrak

The purpose of this study was to determine the effect of alternating current (AC) and direct current (DC) on the bend testing results of low carbon steel welding joints. The results of this study are expected to determine the cracks that occur from the root bend and face bend testings in the AC and DC welding process. This study used experimental method, where the research was done by giving AC and direct polarity DC (DC-) SMAW welding treatments. The material used in this research was low carbon steel plate DIN 17100 Grade ST 44, thickness 10 with E7016 electrode type. The process of welding joints used a single V seam, strong current of 90A, and the welding position of 1G. The testing of welding joints was carried out by bend testing using the standard acceptance of AWS D1.1 root bend and face bend testing results. The results of the bend testing showed that the AC welding root bend test specimen held no cracks while the DC welding root bend test held cracks with incompelete penetration and open crack defects. On the contrary, the AC welding face bend test had open crack defects and in the DC welding face bend test was found a crack. Thus, there was a difference in the crack resistance of the welding joint from the types of current used through the root bend test and face bend test. Therefore, it can be summarized that AC welding is better for root welding and DC welding is good for capping welding.

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  • Sebelas Maret University
  • Universitas Muhammadiyah Parepare
  • Yogyakarta State University
  • Universitas Jember
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Kususanto Ditto PrihadiAfiliasi tidak diketahui6
Lenny MarlindaAfiliasi tidak diketahui3
Muhammad Al MuttaqiiAfiliasi tidak diketahui3
Yan NurcahyaAfiliasi tidak diketahui2
Sudibyo SudibyoAfiliasi tidak diketahui2
Peri OktiarmiAfiliasi tidak diketahui2
Sugeng PriyantoAfiliasi tidak diketahui2
Indri YatiAfiliasi tidak diketahui2
Zahari IshakAfiliasi tidak diketahui2
Mujtahid MujtahidAfiliasi tidak diketahui2
Mohammad PadilAfiliasi tidak diketahui2
Jasman JasmanUniversitas Muhammadiyah Parepare2
Andre KurniawanAfiliasi tidak diketahui2
Astrid Noviana ParadhitaSebelas Maret University1
Mutiara Auliya KhadijaSebelas Maret University1
Agus PurbayuSebelas Maret University1
Sahirul Alim Tri BawonoSebelas Maret University1
Sri HaryatiSebelas Maret University1
Daaniis Raditya Pramoda WardaniSebelas Maret University1
Rafael Kurniawan Albyseptra PratamaSebelas Maret University1
Diana ZuhrohAfiliasi tidak diketahui1
Wahyu LestariYogyakarta State University1
Sunarto SunartoAfiliasi tidak diketahui1
Eko SugiartoAfiliasi tidak diketahui1
Muh Fakhrihun NaamAfiliasi tidak diketahui1
Dwi Ardi Wicaksana PutraAfiliasi tidak diketahui1
Depi RusdaAfiliasi tidak diketahui1
Khairul AnamUniversitas Jember1
Novriadi NovriadiAfiliasi tidak diketahui1
Saliha SebgagAfiliasi tidak diketahui1
Muhammad Mujtaba Mitra ZuanaAfiliasi tidak diketahui1
Ira SuryaniAfiliasi tidak diketahui1
Kustiyono KustiyonoAfiliasi tidak diketahui1
William Eric ManonggaAfiliasi tidak diketahui1
Firda Nurul KhoiriyatulAfiliasi tidak diketahui1
Muhammad KhumaediAfiliasi tidak diketahui1
Samsudin AnisAfiliasi tidak diketahui1

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Sumber metadata: OAI-PMH (metadata jurnal) http://teknomekanik.ppj.unp.ac.id/index.php/teknomekanik/oai, pertama di-harvest 10 Nov 2026, terakhir terlihat 10 Nov 2026.
Metadata asli (oai_dc) 
<oai_dc:dc xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/  http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
	<dc:title xml:lang="en">The Effect of AC (alternating current) and DC (direct current) on  Bend Testing Results of Low Carbon Steel Welding Joints</dc:title>
	<dc:creator xml:lang="en">Firmanda, Zetri</dc:creator>
	<dc:creator xml:lang="en">Aziz, Abdul</dc:creator>
	<dc:creator xml:lang="en">Rahim, Bulkia</dc:creator>
	<dc:subject xml:lang="en">SMAW</dc:subject>
	<dc:subject xml:lang="en">AC and DC currents</dc:subject>
	<dc:subject xml:lang="en">Bend Testing</dc:subject>
	<dc:subject xml:lang="en">Low Carbon Steel</dc:subject>
	<dc:description xml:lang="en">The purpose of this study was to determine the effect of alternating current (AC) and direct current (DC) on the bend testing results of low carbon steel welding joints. The results of this study are expected to determine the cracks that occur from the root bend and face bend testings in the AC and DC welding process. This study used experimental method, where the research was done by giving AC and direct polarity DC (DC-) SMAW welding treatments. The material used in this research was low carbon steel plate DIN 17100 Grade ST 44, thickness 10 with E7016 electrode type. The process of welding joints used a single V seam, strong current of 90A, and the welding position of 1G. The testing of welding joints was carried out by bend testing using the standard acceptance of AWS D1.1 root bend and face bend testing results. The results of the bend testing showed that the AC welding root bend test specimen held no cracks while the DC welding root bend test held cracks with incompelete penetration and open crack defects. On the contrary, the AC welding face bend test had open crack defects and in the DC welding face bend test was found a crack. Thus, there was a difference in the crack resistance of the welding joint from the types of current used through the root bend test and face bend test. Therefore, it can be summarized that AC welding is better for root welding and DC welding is good for capping welding.</dc:description>
	<dc:publisher xml:lang="en">Universitas Negeri Padang</dc:publisher>
	<dc:date>2020-12-10</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>http://teknomekanik.ppj.unp.ac.id/index.php/teknomekanik/article/view/62</dc:identifier>
	<dc:identifier>10.24036/teknomekanik.v3i2.6272</dc:identifier>
	<dc:source xml:lang="en">Teknomekanik; Vol. 3 No. 2 (2020): Regular Issue; 56-61</dc:source>
	<dc:source>2621-8720</dc:source>
	<dc:source>2621-9980</dc:source>
	<dc:language>eng</dc:language>
	<dc:relation>http://teknomekanik.ppj.unp.ac.id/index.php/teknomekanik/article/view/62/33</dc:relation>
</oai_dc:dc>