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All Journal Turbo : Jurnal Program Studi Teknik Mesin Infotekmesin Society: Jurnal Pengabdian Masyarakat
Irza Sukmana
Universitas Lampung
Computer Science & IT Economics, Econometrics & Finance Education Electrical & Electronics Engineering Languange, Linguistic, Communication & Media Mechanical Engineering Social Sciences

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The influence of friction stir welding tool shape on quality of AZ31 Magnesium welding product Irza Sukmana; Fauzi Ibrahim; Ahmad Yudi Eka Risano
TURBO [Tulisan Riset Berbasis Online] Vol 10, No 2 (2021): Jurnal TURBO
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v10i2.1728

Abstract

Magnesium is one type of material that can be used as a base metal in welding. Magnesium has superior properties, including low density, good ductility, medium strength and excellent corrosion resistance. Because of its properties, the metal is widely used, ranging from household goods to aircraft components. These base metals are categorised as mild when viewed from the specific gravity of magnesium (1.74 g/cm3 and 1.83 g/cm3). Welding is the process of merging two or more base metals which are merged at the contact surface with or without additives or fillers. Welding is divided into two main categories, Liquid and Solid-State Welding. Friction Stir Welding (FSW) is an example of Solid-State Welding (Non-Fusion Welding). FSW is a friction welding process that twists the tool by utilising heat energy and pressing without additives or fillers until the base metal is in a phase change.  The welding process in this study used the cone and spiral shape with a tool rotation at 2000 rpm and a welding speed of 16 mm/min. The tests carried out are tensile and hardness testing. This study found that the tool shape, tool rotation, and welding speed significantly affect the mechanical properties of the welded AZ31 magnesium. The spiral shape will make the welding area wider. Although the cone shape will have a small area, the weld will look perfect with good tensile strength, while the hardness values for the two tool shapes are almost the same, but the cone shape is better.
Study Analisis Elemen Tetrahedron dan Hexahedron Plat Tulang Material Magnesium AZ31B dengan Finite Element Method (FEM) Mahruri Arif Wicaksono; Irza Sukmana
Infotekmesin Vol 13 No 1 (2022): Infotekmesin: Januari, 2022
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v13i1.1039

Abstract

Metallic-based materials are commonly used as bone plates as well as orthopedic implants, due to their mechanical properties. This study aims to perform a finite element analysis based on three-point bending test data according to the ASTM F382-99 standard. The dimensions of bone plate material was 120 mm x 14 mm x 5 mm (length x width x thickness) with 6 and 10 screw holes. The load given to the plate analysis was 986.89 N with element size of 0.55 mm. The hexahedron elements have the total number of 62,179 elements for 6 holes and 62,960 elements for 10 holes. The total number of elements of the tetrahedron were 63,609 elements for 6 holes and 64,822 elements for 10 holes. Also, finite element analysis for plates with 6 holes and 10 holes using hexahedron elements yielded a total deformation of 6.1963 mm and 6.7852 mm, respectively. Furthermore, the tetrahedron element for plates with 6 holes and 10 holes resulted in a total deformation of 6.1762 mm and 6.7651 mm, respectively. Based on the above data, it can be concluded that the finite element analysis calculation for bone plate using hexahedron elements is more accurate when compare to the tetrahedrons.
Diseminasi Teknologi Lampu Darurat Berbahan Air Garam di Desa Ekoharjo Kabupaten Lampung Tengah Irza Sukmana; A Y E Risano; M. Arif Wicaksono; Sugiyanto Sugiyanto; Nafrizal Nafrizal; M. Badaruddin
Society : Jurnal Pengabdian Masyarakat Vol 1, No 5 (2022): September
Publisher : Edumedia Solution

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55824/jpm.v1i5.190

Abstract

Electrical energy is needed and continues to increase in line with the population and economic growth, including in Lampung Province. Problems may occur once happen the rotating power outages, in this case the community uses candle or kerosene lamps. The use of candle or kerosene lamps may cause danger due to the combustion gas produced and a potential of fire. Therefore, it is necessary to make efforts to produce alternative energy sources in energy renewal, one of which is to build a salt water electrical energy source using the sea cell method, to build an energy independent village. Electricity through electrochemistry is one of the alternative electrical energy that can be generated by utilizing an oxidation-reduction process in which an electrochemical cell with a pair of Cu(Ag)-Zn electrodes is used. The electrodes are made of Cu fibers with a length of 2 m per strand as many as 25 strands and a Zn plate with dimensions of 10 cm long and 3.5 cm wide. Cu is coated with Ag metal using the electroplating method, while Zn metal is protected with Mg metal as a sacrificial anode. The electrical energy produced from this lamp is expected to be applied as renewable energy in a sustainable manner. The University of Lampung has a very good relationship with Ekoharjo village in Central Lampung district of Lampung Province.
Co-Authors A Y E Risano A.Yudi Eka Risano Ibrahim, Fauzi M. Arif Wicaksono M. Badaruddin Mahruri Arif Wicaksono Nafrizal Nafrizal Sugiyanto Sugiyanto