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Contact Name
M. A. Ade Saputra
Contact Email
m.a.adesaputra@ft.unsri.ac.id
Phone
+628117443011
Journal Mail Official
jrm@ft.unsri.ac.id
Editorial Address
Jl. Srijaya Negara, Bukit Besar, Palembang-Sumatera Selatan
Location
Kab. ogan ilir,
Sumatera selatan
INDONESIA
Jurnal Rekayasa Mesin
Published by Universitas Sriwijaya
ISSN : 14116553     EISSN : 23387009     DOI : https://doi.org/10.36706/jrm.v21i1
Jurnal Rekayasa Mesin (JRM) Jurusan Teknik Mesin Universitas Sriwijaya adalah sebuah jurnal blind peer-review yang didedikasikan untuk publikasi hasil penelitian yang berkualitas dalam bidang ilmu Teknik Mesin namun tak terbatas secara implisit. Semua publikasi di Jurnal Rekayasa Mesin ini bersifat akses terbuka yang memungkinkan artikel tersedia secara bebas online tanpa berlangganan apapun
Articles 29 Documents
Analisa Sifat Mekanik pada Komposit 86 Al 1020 – 12 Fly Ash – 2 Mg yang Dibuat dengan Proses Direct Melt Oxidation (DIMOX) Qomarul Hadi; Ahmad Sumadi
Jurnal Rekayasa Mesin Vol. 21 No. 1 (2021): Jurnal Rekayasa Mesin
Publisher : Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jrm.v21i1.76

Abstract

This study aims to analyze the mechanical properties of composite with a composition of 86% aluminum 1020, 12% fly ash and 2% magnesium, the three composite materials are combined in a furnace with the Direct Melt Oxidation method, after the melting process with a temperature of 900oC and the holding time varying 4 hours , 5 hours and 6 hours. Later, the Brinell hardness tester, at K4 the average value of BHN was 49.00816 kgf / mm, K5 the average value of BHN was 51.80066 kgf / mm and K6 the average value of BHN was 56.64983 kgf / mm. In the observation of Scaning Electron Microscope K6 specimens that have the best pores, changes in the microstructure of these composites are increasingly visible on the 5000x magnification observation. This is due to the holding time which helps the infiltration process in the interface reaction between the liquid and solid phases, and the user of this holding time is due to the metal's wetting ability and the slow and time-consuming infiltration process. to get a more even mixture.
Analisis Parameter Pemesinan pada Proses Side Milling Baja AISI 1045 Menggunakan Response Surface Methodology (RSM) Arif Afriansyah; Muhammad Yanis
Jurnal Rekayasa Mesin Vol. 21 No. 1 (2021): Jurnal Rekayasa Mesin
Publisher : Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jrm.v21i1.88

Abstract

Surface roughness is one of the criteria for determining machining quality. This parameter is influenced by machining parameters such as cutting speed (Vc), motion feed (fz) and radial depth of cut (ar). The material is processed using side milling with down milling feeding direction. The results of the milling process are measured with a surface roughness tester by taking the roughness arithmetic (Ra) value as the roughness value. Surface roughness prediction is done using response surface methodology (RSM). RSM was chosen as a quantitative approach based on experimental and modeling data. The number of data retrieval in this study were 16 experimental data for 3 machining parameters. Surface roughness modeling of AISI 1045 milling by Quadratic response surface methodology showed significant model results. Evidenced by the F-Value of 5.61 and P-Value of 0.0241. P-Value was <0.05 means that the model is significant. The mean square error mean in this study also showed good results in the amount of 0.0091 and an average error of 0.122%. The effect of cutting speed on roughness is the higher the cutting speed will produce a smooth roughness value, while the effect of feeding motion and feeding depth on roughness is directly proportional, the higher the value of feeding motion and the depth of feeding, the coarser the roughness score will be.
Perancangan dan Pembuatan Mesin Bending dan Notching Muhammad Yanis; gunawan; Ricky Wahyu Pratama
Jurnal Rekayasa Mesin Vol. 21 No. 1 (2021): Jurnal Rekayasa Mesin
Publisher : Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jrm.v21i1.72

Abstract

Bending and notching is a common process in manufacturing world as in vehicles chassis fabrication. But, the recent problem is the limited tools that needed to bend and notch pipes. The objective of this research is to fabricate a tool or production machine that could bend and notch pipes based on need by using three roll bending method. As for the notching angle of 0  to 60  and the diameter for notching cutting is 1 to 2 inch. There are some calculations on machine structure by using solidworks simulation such as stress analysis, von mises and factor of safety. There are three trials in bending process such as deflection from 1, 2 and 3 cm and on the other side, notching trials start from 0  to 60 . This notching and bending machine created with two functions. The bending process is conducted in the middle part while the notching process is in the top part of the machine. This machine has 70 cm length, 50 cm wide and 120 cm height and the total amount of cost spent for this machine is Rp. 9.009.500.
Pengaruh Jenis Material Cutter Slot Drill Terhadap Hasil Regrinding dan Tool Life AGUNG DWI SAPTO; Kurnia Yogo Utomo
Jurnal Rekayasa Mesin Vol. 21 No. 1 (2021): Jurnal Rekayasa Mesin
Publisher : Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jrm.v21i1.71

Abstract

Damage cutting tools on CNC machines is a common problem that is often encountered in the field of machining industry. Long tool life can certainly save the expenditure of the company because minimizing the purchase of new cutting tools because of the damage, for that this research aims to help estimate the age of cutting tools on slot cutter drill short type of carbide and HSS and get an idea of how long the cutter can be used and know the impact of the regrinding process on the cutting tools. In this study used quantitative methods where research focused on the use of data analysis software computer cutting and data service and also manually calculation results presented in the form of tables and graphs. The results obtained by carbide cutters have a longer tool life of 706 minutes compared with a cutter HSS 162 minutes to achieve a degree of stroke-0.1 mm and the regrinding process leads to the reduction of feeding speed, cutting speed and performance on the cutter.
Pengaruh Variasi Baffle Spacing dan Flow Rate Terhadap Efektifitas Heat Exchanger Shell and Tube Menggunakan Metode NTU (Number of Transfer Unit) dan HTRI Aji Abdillah Kharisma; Wisnu Malik Pangestu
Jurnal Rekayasa Mesin Vol. 21 No. 1 (2021): Jurnal Rekayasa Mesin
Publisher : Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jrm.v21i1.70

Abstract

The research was conducted by redesigning the shell-and-tube MOES C heat exchanger by PT. Krakatau Steel, using the HTRI application to find the effectiveness value (E > 0.5). The flow type is counterflow, double segmental type baffles, two tube passes with water, oil fluid, and baffle spacing are 60 mm, 90 mm, and 100 mm, flow rate 5,716 kg/s, 5,781 kg/s, and 5,808 kg/s. The increase in flow rate on the Heat Exchanger results in a decrease in effectiveness, on the contrary, at the minimum flow rate in the Heat Exchanger there is an increase in effectiveness. The greater the number of baffles in the Heat Exchanger, the greater the value of the pressure drop, which results in a decrease in heat transfer at the Heat Exchanger. The higher the flowrate, the greater the heat transfer value, but also the greater the mass and the greater the value of pressure drop that occurs in the Heat Exchanger. The large number of baffles and flowrate also affects the pressure drop and heat transfer values.
Uji Sifat Mekanik Hasil Peleburan Aluminium Kaleng Minuman Bekas dengan Bahan Bakar Minyak Pelumas Bekas Diberi Perlakuan Panas dengan Dapur Listrik dan Tungku Krusibel Muhammad Nur Panghurian; Nukman Nukman
Jurnal Rekayasa Mesin Vol. 20 No. 2 (2020): Jurnal Rekayasa Mesin
Publisher : Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jrm.v20i2.67

Abstract

Penelitian ini dilakukan untuk membandingkan sifat mekanik hasil peleburan alumunium kaleng bekas berbahan bakar minyak pelumas bekas, baik tanpa mengalami perlakuan panas maupun dengan perlakuan panas anealling. Perlakuan panas anealling dilakukan menggunakan 2 metode yaitu aneallingmenggunakan dapur listrik dan anealling menggunakan lemari pemanas yang dipasang pada tungku krusibel dengan temperatur 343 °C dan holding time selama 1 jam. Spesimen hasil peleburan dilakukan uji komposisi kimia yang bertujuan untuk mengetahui kandungan-kandungan yang terdapat di dalam spesimen tersebut. Pada pengujian kekerasan tetjadi penurunan nilai BHN untuk speimen yang diberi perlakuan panas anealling dapur listrik dan lemari pemanas masing-masing sebesar 21,2% dan 31,67%. Selain itu terjadi juga penurunan nilai tegangan untuk spesimen pengujian tarik terhadap nilai ?u sebesar 23.9% dan 9.5% dan ?f sebesar 16,34% dan 5,17% sedangkan pertambahan panjangnya naik menjadi 1,3% dan 1,467%. Spesimen yang diberi perlakuan panas anealling dapur listrik dan lemari pemanas mengalami peingkatan nilai impak sebesar 25,04% dan 30,1%. Perlakuan panas anealling yang dilakukan bertujuan untuk menghilangkan tegangan sisa yang terjadi akibat proses peleburan agar dapat mengubah sifat mekanik spesimen tersebut
Rancang Bangun Dan Pengujian Anemometer Untuk Sudu Savonius Kaprawi Sahim; Sawalluddin Sawalluddin
Jurnal Rekayasa Mesin Vol. 20 No. 1 (2020): Jurnal Rekayasa Mesin
Publisher : Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jrm.v20i1.68

Abstract

In obtaining wind speed data, it is needed a tool that is able to capture the speed of the wind that is converted to the rotation of the shaft. The tool is called an anemometer, has a wind-driven blade principle where the blades are normally used 3 pieces or 4 blades, but in this design use 3 blades with blade diameter D = 40 mm with radio circular anemometer 180 mm. by arduino and converted through calculations that have been set on the computer using the arduin software. By conducting testing it is expected that the designed anemometer has the same wind speed (Va) value in calculating wind speed. testing by comparing the results of the standard deviation (?) of the product anemometer or design, and also the comparison of values from the results of wind speed (Va) which is tested in the laboratory of the basic phenomena of mechanical engineering with a range of wind speeds tested around 1 m / s to 10 m / s. the standard deviation (?) is obtained for the product anemometer of 3.478% and the design anemometer of 11.07% and the design anemometer has an error data on the product anemometer of 0.4%.
Pengaruh Jumlah Baffle Terhadap Kinerja Alat Penukar Kalor Tipe Shell and Tube Elvine Handika Putra; Irwin Bizzy
Jurnal Rekayasa Mesin Vol. 20 No. 2 (2020): Jurnal Rekayasa Mesin
Publisher : Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jrm.v20i2.65

Abstract

Fungsi baffle dalam penukar kalor tipe shell and tube adalah untuk meningkatkan laju perpindahan kalor dari fluida panas ke fluida dingin atau sebaliknya dan sebagai penyangga tube yang ada pada shell. Tujuan penelitian ini adalah untuk mengetahui pengaruh variasi jumlah baffle yang diperlukan dalam perhitungan kinerja dari penukar kalor tipe shell and tube. Analisis kinerja di sini terdiri dari nilai koefisien perpindahan kalor, penurunan tekanan, dan efektivitas. Hasil analisis menunjukkan bahwa bertambahnya jumlah baffle pada penukar kalor terjadi peningkatan nilai koefisien perpindahan panas sisi shell, terjadi penurunan tekanan sisi shell, dan peningkatan efektivitas pada alat penukar kalor itu sendiri.
Perancangan Heat Exchanger Tipe Shell dan Tube Secara Metoda Matematis dan Simulasi Software Aji Abdillah Kharisma
Jurnal Rekayasa Mesin Vol. 20 No. 2 (2020): Jurnal Rekayasa Mesin
Publisher : Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jrm.v20i2.66

Abstract

Perancangan exchanger mempunyai perhitungan matematis berdasarkan perpindahan panas yang terjadi sehingga prediksi nilai matematis harus sesuai dengan teori yang sudah ada, rangkaian perhitungan heat exchanger cukup rumit mulai menentukan luas area perpindahan panas, menentukan jumlah pass dan tube yang sesuai, menentukan diameter shell, menghitung koreksi koefisien perpindahan kalor keseluruhan harus kurang dari 30%, dan menghitung over desain yang kurang dari 30%, jika nilai koreksi koefisien perpindahan kalor keseluruhan dan nilai over desain berdasarkan syarat tersebut maka desain layak dilanjutkan. Data untuk melakukan perancangan heat exchanger ditentukan melalui laju aliran massa air Panas 2 kg/s, Temperatur inlet air panas 98.8 0C, Temperatur outlet air panas 60 0C, Temperatur inlet air dingin, 32.2 0C, Temperatur outlet air dingin 68.30 0C. hasil simulasi yang dilakukan perbedaan temperatur air panas dari nilai rancangan dan nilai hasil simulasi memiliki error sebesar 23%.
Analisis Kegagalan pada Rangka Mesin Perontok Padi Kapasitas 1 Ton/Jam Menggunakan Metode Von Misses Aji Abdillah Kharisma; Muhammad Erlian Marsaoly
Jurnal Rekayasa Mesin Vol. 20 No. 2 (2020): Jurnal Rekayasa Mesin
Publisher : Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jrm.v20i2.64

Abstract

Perontokan merupakan proses pasca musim panen padi yang sudah bisa dipanen kemudian padi yang telah layak untuk dipanen dirontokan untuk memisahkan bulir padi jeraminya. Prinsip kerja dari mesin perontok padi adalah merontokan bagian tangkai padi sampai bulir padi terlepas. Mesin perontok padi ini berkapasitas kurang lebih 1 Ton/Jam. Pada penelitian ini akan membahas tentang analisa stress dan strain serta keamanan (safety factor) rangka mesin perontok padi. Metode yang digunakan dalam penelitian ini adalah  metode perbandingan perhitungan secara aktual dan simulasi software solidwork. Perhitungan aktual dan simulasi yang dilakukan terdiri dari nilai Displacement, Von Misses Stress, Strain dan keamanan rangka berguna untuk memenuhi standar keamaan yang baik. Material rangka mesin perontok padi adalah ASTM A36. Material tersebut akan  menerima gaya pembebanan dari tekan (tegangan), perubahan bentuk deformasi atau strain. Berdasarkan hasil analisa simulasi rangka mesin perontok padi didapatkan nilai von misses 91,95 MPa dan perhitungan aktual von misses (stress) sebesar 88,72 MPa dengan persentase perbandingan hasil sebesar 3%. Pada hasil perhitungan nilai displacement (strain) secara aktual bernilai 0,23 mm dan hasil analisa simulasi sebesar 0,21 mm dengan persentase perbandingan hasil sebesar 8%, sedangkan hasil perhitungan aktual safety factor adalah 2,71 ul dan pada safety factor pada analisa simulasi software sebesar 2,72 ul dengan persentase perbandingan sebesar 3 %. Berdasarkan hasil dari perhitungan aktual dan analisa simulasi bahwa nilai safety factor diantara 1 sampai 10 dan von misses ? 200 MPa (Modulus Elasticity) material ASTM A36 yang artinya bahwa rangka pada mesin perontok padi memenuhi standar keamanan yang baik dalam perancangannya

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