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All Journal Logic : Jurnal Rancang Bangun Dan Teknologi Jurnal Pengabdian Kepada Masyarakat
Radhi Nurvian Amrullah
Politeknik Negeri Malang
Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Mechanical Engineering Social Sciences Other

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Effect of Current Strength and Flow Rate of Shielding Gas on the Impact and Tensile Strength of GMAW Welsing Result on SPHC Materials Radhi Nurvian Amrullah; Subagiyo
Logic : Jurnal Rancang Bangun dan Teknologi Vol. 23 No. 3 (2023): November
Publisher : Unit Publikasi Ilmiah, P3M, Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31940/logic.v23i3.194-202

Abstract

GMAW welding is one of the welds that is easy to use, especially for welding low-carbon steel that is generally widely used in the process of making frame structures, an example is a car frame which is generally made using materials that have strong, ductile, lightweight, and able to withstand impact and tensile loads when the car is used, one example of the material is SPHC. The problem is that GMAW welding results are affected by welding parameters. In this study, the parameter chosen was the strong variation of the welding current. The purpose of this study is to determine the strong influence of the current and flow rate of protective gases as well as the interaction on the impact and tensile strength of GMAW welding results on SPHC materials. This study used an experimental method with current strength parameters worth 120A,130A, and 140A as well as variations in the flow rate of protective gases, namely 15 liters/minute,20 liters/minute, and 25 liters/minute. The results of research in general, the impact strength on the weld metal has a lower result than the row material, and the tensile strength on the weld metal has a higher yield than the row material. From the study, it can be seen that the optimal current strength and flow rate of protective gas is a current strength of 140 A and a flow rate of protective gas worth 25 L /minute with an impact strength of 2.91 J/mm2 and a tensile strength of 431.72 MPa.
DESAIN DAN PEMBUATAN PERANGKAT PEMBENTUK PENGGANTUNG PAKAIAN BENTUK S BERSUDUT 90o Syamsul Hadi; Mochamad Muzaki; Purwoko Purwoko; Anggit Murdani; Fica Aida Nadhifatul Aini; Febryan Candra Shakti; M Rio Alfi Sya'bana; Radhi Nurvian Amrullah
Jurnal Pengabdian kepada Masyarakat Vol. 12 No. 2 (2025): JURNAL PENGABDIAN KEPADA MASYARAKAT 2025
Publisher : P3M Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/abdimas.v12i2.9112

Abstract

The problem lies in the inconsistency of the dimensions of the 90° S-shaped clothes hanger forming device for use in research requiring bending and deflection forces using the Tarno Grocki compression testing machine. This community service project aims to develop a 90° S-shaped clothes hanger forming device whose design can be used in research requiring bending and deflection forces using the Tarno Grocki compression testing machine and cannot be used as a stand-alone device without the aid of a hydraulic jack and frame as a production tool in a home industry. The method applied is modifying the design and device so that it can function using the Tarno Grocki compression testing machine and a stand-alone device with the aid of a hydraulic jack as a production tool in a home industry, including the construction of a support table, a trial run, and the donation to partners or home industries. The results of the community service in modifying the 90o S-Shaped Clothes Hanger Forming Device can be used as a production tool by the household industry, so that there is a synergy between State Polytechnic of Malang and the community in producing clothes hangers for the community's needs more efficiently and can meet the needs of the community in general.
Co-Authors Anggit Murdani Febryan Candra Shakti Fica Aida Nadhifatul Aini M Rio Alfi Sya'bana Muzaki, Mochamad Purwoko Subagiyo Subagiyo Syamsul Hadi