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Journal : Journal of Mechanical Engineering Science and Technology

Effect of DCRP and DCSP Polarity on SMAW Welding on the Depth of Penetration with E7018 Electrodes using Low Carbon Steel ASTM A36 Ma'mun Hidayat; Helleni Febnesia; Sulaeman Deni Ramdani
Journal of Mechanical Engineering Science and Technology (JMEST) Vol 5, No 1 (2021)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um016v5i12021p037

Abstract

The study aims to determine the level of penetration depth using SMAW (Shielded Metal Arc Welding) Process based on the polarity type of DCRP (Direct Current Reverse Polarity) and DCSP (Direct Current Straight Polarity). This research used ASTM A36 low carbon steel plate with thickness of 6 mm and length of 200 mm, Electrode E7018 LB-52-18 ∅ 3.2 mm, and with current parameters of 90 A, 100 A, 110 A, 120 A and 130 A and 70° welding arc angle. The method used the experimental research. Data collection techniques applied direct observation techniques and descriptive statistical data analysis techniques. Testing the penetration depth of the welds with a macrographic test was conducted by an optical microscope. The test results show that DCRP has more depth than DCSP when the current is 90 A with a difference of 0.38 mm. When the current is 100 A, DCRP is deeper with a difference of 0.312 mm compared to DCSP. The third experiment, with a current of 110 A DCRP, was deeper with a difference of 0.05 mm compared to DCSP. During the fourth and fifth experiments, DCRP was deeper with a difference of 0.21 mm compared to DCSP at 120 A and DCRP was 0.324 mm deeper than DCSP at 130 A. It can be concluded that the effect of DCRP and DCSP polarity on the depth of penetration using E7018 electrodes and ASTM low carbon steel A36, DCRP polarity has a deeper penetration depth compared to DCSP.
Co-Authors AA Sudharmawan, AA Ade Gafar Abdullah, Ade Gafar Agung Hanfi Astana Ahmad Fauzi Albatsi, Darul Alimin Alimin Ananda Yhuto Wibisono Putra Angga Pangestu Angga Pangestu Assaat, Lusiani Dewi Bohari Bunga Rahmania Damanhuri Dani, Dandi Firman Denny Yus Rama Dian Nur Anwar Dwi Indah Suryani Egi Suryana Endi Permata Fachruddin Perdana FAISAL HARIS Fargianti, Yusti Fitri Nurotusholihah Fitria Ramadhani Galang Tegar Darmawan Hamid Abdillah Handoyo Haris Abizar Haris Abizar Haris Abizar, Haris Hartono, Rudi Hasan Maksum Helleni Febnesia Hendra Dani Saputra Herlina Pratiwi Herlina Pratiwi Herlina Siregar Ikhsanuddin Ikhsanudin, Ikhsanudin Iman, Atep Iqrom, Muhamad Nur Irma Yulia Basri IRWANTO Irwanto Ita Novita Sari Ita Novita Sari Joshua, Quienera Liska Berlian Lusiani Dewi Assaat Lusiani Dewi Assaat Ma'mun Hidayat Maelani Marlo Siswahyu Maulani, Ismi Moch Fawaid Moch Fawaid Moh Fawaid Muchamad Fajrin Darmawan Mudmainah Vitasari Muhammad Nurtanto Nana Suryana Nasrul Hadi Prasstiawan, Sahrul Pratiwi, Herlina Prayuda, Ridzki Purbasari, Diki R. Ahmad Zaky El Islami Rahmat Setiadi, Bayu Rama Denny, Yus Ramdani, Maftuh Ikhsan Ridho Aji Pangestu Rocky Alfanz Rudi Hartono Sadaharu Hamaguchi Saputra, Bima Afif Bagas Soffan Nurhaji Soffan Nurhaji Soffan Nurhaji Soffan Nurhaji, Soffan Suadi Sumarli Sumarli, Sumarli Sunarto Hidayat Supriyanto Supriyanto Supriyatna, Deddy Tettehfio, Emmanuel Obobi Vernando, Verly wahid fajar kurniawan Wardhana, Abdul Ghofur Syamdatu Wawan Prasetyo Yus Rama Denny Yus Rama Denny Yus Rama Denny, Yus Rama Yusti Fargianti Zaenal Ambia