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Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin
Published by Universitas Halu Oleo
ISSN : -     EISSN : 25028944     DOI : -
Core Subject : Engineering,
Mechanical Engineering
Jurnal ENTHALPY memuat artikel hasil penelitian tugas akhir mahasiswa di lingkup Jurusan Teknik Mesin, Fakultas Teknik Universitas Halu Oleo Entalpy Jurnal Ilmiah Mahasiswa Teknik Mesin diterbitkan 4 (empat) kali setahun pada bulan Februari, Mei, Agustus dan November.
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 5 Documents
 1 
Search results for , issue "Vol 7, No 4 (2022): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin" : 5 Documents clear
Perancangan Alat Treker Piston Kaliper Rem Mobil Dengan Sistem Hidrolik I Putu Ade Ariambaryana; Yuspian Gunawan; Raden Rinova Sisworo
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 7, No 4 (2022): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55679/enthalpy.v7i4.28449

Abstract

The hydraulic piston tracker is a tool used to press the car's caliper pistons when changing the disc pad. This study aims to design and design a piston caliper treker tool with a maximum strength of 50Kg and to determine the components and dimensions used in this tool. In this study, the main system is hydraulic which converts the pressure to be greater. The pressure produced by this tool is 50Kg or 490.5 N using only the force of the hand of 8.05 N. For the size of this tool it has an overall length of 27 cm, a retaining width of 11.5 cm, a lever length of 20 cm and a hydraulic tube diameter. 3 cm. main material for hydraulic cylinder chrome steel s30c 48 (Kg/mm2), low carbon steel plate (ST42) 36 (Kg/mm2), bolts, handles and levers Low carbon steel (ST42) 36 (Kg/mm2).Key words : Tool, Treker, design, hydraulic
Analisa Kekuatan Mekanik Sambungan Las Menggunakan Pola Ayunan Melingkar Dan Zig-Zag Pada Baja Karbon Sedang Irwan Irwan; Nanang Endriatno; La Hasanudin
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 7, No 4 (2022): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55679/enthalpy.v7i4.28405

Abstract

Welding is one of the metal joining techniques by melting some of the parent metal and filler metal which is currently widely used with different methods and movements of welding electrodes. These methods aim to obtain flat and smooth welds and at the same time become the impetus for the compilers to conduct research entitled "analysis of the mechanical strength of welded joints using circular and zig-zag swing patterns on medium carbon steel" with the aim of knowing the effect of welding patterns on hardness test on medium carbon steel material and the effect of microstructure welding pattern on medium carbon steel material. This research was conducted in August 2020, at the Mechanical Engineering Materials and Technology Laboratory, Department of Mechanical Engineering, Faculty of Engineering, Halu Oleo University Kendari. The tools used are welding machines, grinding machines, welding goggles, pliers, masks and gloves while the materials are 0.5 cm carbon steel plate, welding electrodes, grinding wheels. The results of the first research are that for welding using a circular electrode movement pattern which shows a softer or more ductile result, while for a harder or brittle result, it is shown in the zigzag electrode movement welding process and secondly that the circular electrode movement in the welding process has an impact on the microstructure. in the HAZ area which is getting darker because the structure formed is dominated by pearlite, while in welding the zigzag electrode movement has an impact on the HAZ area which is getting brighter because it is dominated by the bainite structureKeywords: Circular Welding Pattern, Mechanical Strength, Medium Carbon Steel, Zigzag Welding Pattern,
Analisis Kekuatan Tarik Material Komposit Berpenguat Ampas Pengolahan Sagu La Ode Muhamad Saleh; Samhuddin Samhuddin; Prinob Aksar
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 7, No 4 (2022): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55679/enthalpy.v7i4.28335

Abstract

In the industrial world, the development of material technology is growing rapidly. Various kinds of materials have been used and further research is being carried out to obtain the right materials, one of which is composite materials. The purpose of this study was to determine the effect of the tensile strength of the composite material reinforced with sago pulp. In this study, the manufacture of composites using the hand lay up method. then the fiber is given alkaline treatment by soaking in a solution of NaOH (Sodium Hydroxide) with a concentration of 5% for 1 hour, 2 hours and without treatment. From the results obtained, immersion for 1 hour has the highest tensile stress of 10,456 N/mm², followed by immersion for 2 hours of tensile stress of 7.189 N/mm². While without treatment has the lowest tensile stress of 4.955 N/mm². This shows that the treatment will affect the tensile stress.Kata kunci: Sago drgs,tensile strength,alkali
Pengaruh Besar Sudut Kampuh V Terhadap Von Mises Stress Material Pada Proses Pengelasan Berbasis Metode Elemen Hingga Zulvikar Zulvikar; Abd Kadir; Samhuddin Samhuddin
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 7, No 4 (2022): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55679/enthalpy.v7i4.28357

Abstract

Welding is one of the joining technologies that has experienced significant developments from time to time, both from the type of welding equipment to the joining method used. This study aims to determine the effect of the large angle of V on Von Mises stress material in the welding process based on the finite element method. The tool used to model Equivalent von misses stress and Equivalent Elastic Strain with the help of finite element method software, the material used is AISI 4130. From the simulation results, it shows that the largest Equivalent von misses stress is found at the 45° V seam angle, which is 1.7251x108 Pa, while the lowest equivalent von misses stress is found at the angle of V 60°, which is 1.7162x108 Pa. As for the Equivalent Elastic Strain, the largest is found at the large V 30° joint angle, which is 0.00129 m or 1.29 mm, while the lowest strain value is found at the 45° joint angle of 0.0011564 m or 1.15 mm. Keywords: Equivalent von misses stress, Equivalent elastic Strain, Large angle of V, Finite element method
Pengaruh Sudut Elektroda Terhadap Sifat Mekanik dan Fisis Baja Karbon Rendah Hasil Proses Pengelasan SMAW Darmawan Darmawan; Nanang Endriatno; Prinob Aksar
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 7, No 4 (2022): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55679/enthalpy.v7i4.28333

Abstract

Analysis of the effect of welding position and electrode movement pattern on hardness,it can be concluded that the electrode movement pattern has an influence on the hardness result. The purpose of this study was to determine the effect of the electrode angle on the mechanical and physical properties of low carbon steel from the SMAW welding process. The research method used is hardness testing and microstructure analysis. The results obtained are that specimens with different electrode angles, namely 300, 450, and 600 produce an average in each welding area such as the weld area, haz area, and different areas where the greater the angle the higher Also the average for each weld area and also on the analysis of microstructure shows that the weld metal area with electrode angles of 300, 450, and 600 shows the same microstructure or does not show any effect. the larger the area of the weld metal with electrode anglesof 300, 450, and 600, the larger the ferrite area, the larger the area of the weld metal with angles of 300, 450, and 600 pearlite grains.Keywords: electrode angle, low carbon steel, microstructure, welding

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