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Pengaruh Feri Klorida Terhadap Kedalaman Pengikisan Dan Kekasaran Permukaan Aluminium Murni Nova Yuliasari; Muhammad Yanis; Aprianto Aprianto
Jurnal Penelitian Sains Vol 15, No 1 (2012)
Publisher : Faculty of Mathtmatics and Natural Sciences

Penelitian chemical machining mengenai pengaruh larutan feri klorida (FeCl3) terhadap kedalaman pengikisan dan kekasaran permukaan aluminium murni perdagangan telah dilakukan. Aluminium direndam dengan FeCl3 dengan variasi konsentrasi 5% (b/v), 8% (b/v) dan 11% (b/v). Masing-masing variasi konsentrasi FeCl3 dilakukan untuk variasi waktu perendaman 2 jam, 4 jam dan 6 jam. XRF menganalisis aluminium murni menunjukkan adanya unsur lain berupa Zn, Cr, Ti, V dan Cu. Fe3+ dalam FeCl3 mengoksidasi Al sebagai komponen utama material menyebabkan pengikisan. Perbedaan potensial reduksi standar unsur-unsur penyusun material aluminium menyebabkan kekasaran permukaan bila direndam dalam FeCl3. Pengikisan aluminium cenderung semakin dalam dengan bertambah besarnya konsentrasi FeCl3 dan bertambahnya waktu perendaman. Permukaan aluminium cenderung semakin kasar dengan bertambah besarnya konsentrasi FeCl3 dan bertambahnya waktu perendaman. Waktu perendaman 2 jam dalam konsentrasi FeCl3 5% (b/v) hingga 11% (b/v) menghasilkan kedalaman pengikisan antara 0,02 mm hingga 0,06 mm. Sedangkan waktu perendaman 6 jam dalam konsentrasi FeCl3 5% (b/v) hingga 11% (b/v) menghasilkan kedalaman pengikisan antara 0,09 mm hingga 0,19 mm. Waktu perendaman 2 jam dalam konsentrasi FeCl3 5% (b/v) hingga 11% (b/v) menghasilkan kekasaran permukaan antara 0,35 μm hingga 0,91 μm. Sedangkan waktu perendaman 6 jam dalam konsentrasi FeCl3 5% (b/v) hingga 11% (b/v) menghasilkan kekasaran permukaan antara 3,30 μm hingga 5,09 μm.

Analisis Kekasaran Permukaan Hasil Proses Side Milling Menggunakan Artificial Neural Networks (ANN) Muhammad Yanis; Ahmad Mujaddid An-Najiy
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.v20i2.63

Surface roughness is one of the aberrations caused by cutting conditions in the machining process. In this test, the application of cutting fluid was carried out using the MQL (minimum quantitylubricant) method with the AISI 1045 workpiece. Experimental testing was carried out based on theCentral Composite Design with a level point adjusted to the conditions of the vertical freis machine used, with variable cutting speed (Vc), motion feed (fz) and depth of cut (a). Surface roughness prediction is done using Artificial Neural Networks method. The requirements set in ANN are a network structure with 3 inputs, n hidden layers and 1 output, feed forward back propagation network algorithms, training and learning functions with Levenberg-Marquardt and performance calculated by MSE. The results show that the effect of cutting speed on roughness is inversely proportional, the higher the cutting speed will produce a smooth roughness value and vice versa, 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 higher the roughness value. the more rough it gets. Surface roughness prediction resulted in the lowest MSE in the 3-8-1 structural network with MSE 0.001648738 with an error prediction of 3.2415% in all training data and testing data. And the test data get a deviation value range of 0.99% to 15.199%.

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

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.

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

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.

Effect of The Pressure of the Squeeze Process on the Hardness and Micro Structure of Recycled Aluminum Materials Nukman Nukman; Muhammad Yanis; taufik kurrahman
Journal of Mechanical Science and Engineering Vol 1, No 1 (2013): Journal of Mechanical Science and Engineering
Publisher : Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (489.587 KB)

Ringkasan Proses pengecoran squeeze menghasilkan produk yang mendekati ukuran akhir dengan kualitas yang baik. Struktur mikro hasil pengecoran squeeze tampak lebih padat, homogen dan sifat mekanik yang baik bila dibandingkan dengan hasil pengecoran tuang. Material yang dipergunakan daur ulang alumunium berupa 25 kg piston, 25 kg velg dan 25 kg berupa campuran (kanvas rem, tutup mesin, dan perabotan rumah tangga) yang di lebur didalam dapur dan proses pencetakan sistem dengan proses DSC. Logam cair dituangkan ke dalam die pada temperatur 750Â°C, lalu dipres dengan selama 60-70 detik. Proses pemberian tekan di mulai pada penekan 30 MPa dengan durasi penekanan 75 detik. Ulangi untuk penekanan 50,70,90,110 MPa, 130 dan 150 Mpa. Kemudian benda cor di keluarkan dari die (cetakan). Hasil pengujian Komposisi hasil daur ulang alumunium 84,75 % Al dan 8,985 % Si, dengan tingkat kekerasan permukaan pada tekanan 130 MPa sebesar 89,74 HBN. Proses pengecoran squeeze meningkatkan kekerasan permukaan sebesar 22 % Proses pengecoran squeeze meningkatkan kekerasan permukaan sebesar 22 %. Kekerasan permukaan hasil squeeze sangat di pengaruhi oleh temperatur penuangan, waktu penekanan dan besarnya gaya penekanan. Struktur mikro material cenderung merapat dan memendek seiring dengan peningkatan tekanan yang diberikan. Kata Kunci : Pengecoran Squeeze, Struktur mikro dan Kekerasan. Abstract Squeeze casting process to produce products that approach the final size with good quality. Squeeze casting microstructure results appear more dense, homogeneous and good mechanical properties when compared with the results of foundry castings. Recycled materials used in the form of 25 kg piston aluminum, 25 kg and 25 kg wheel in the form of a mixture (brake, engine cover, and household items) are in the process of melting and molding in the kitchen with the DSC system. molten metal into the die at a temperature of 7500C, and then pressed for 60-70 seconds. The process of granting press at start at 30 MPa pressure with a duration of 75 seconds emphasis. Repeat for emphasis 50,70,90,110 MPa, 130 and 150 MPa. Then remove it from the body in die cast (mold). Results of testing of recycled aluminum composition 84.75% Al and 8.985% Si, with surface hardness 130 MPa at a pressure of 89.74 HBN. Squeeze casting process increases surface hardness by 22% squeeze casting process increases surface hardness by 22%. Hardness of squeeze surface is influenced by the pouring temperature, the time pressure and the force suppression. Microstructure of the material tends to move up and retracts with increasing applied pressure. Keywords: Squeeze Casting, Microstructure and Hardness.

SOSIALISASI ALAT PENCACAH DAUN MAKANAN TERNAK UNTUK KELOMPOK PETERNAK SAPI DI DESA TANJUNG PERING KECAMATAN INDRALAYA KABUPATEN OGAN ILIR Muhammad Yanis
Jurnal Pengabdian Sriwijaya Vol 7, No 3 (2019)
Publisher : Lembaga Pengabdian pada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37061/jps.v7i3.9776

Pengabdian kepada masyarakat di desa Tanjung Pering Kecamatan Indralaya Kabupaten Ogan Ilir Provinsi Sumatera Selatan merupakan salah satu upaya untuk mensosialisasikan sebuah teknologi tepat guna kepada masyarakat beternak sapi yang berada di perbatasan dengan kampus Indralaya. Desa ini merupakan salah satu desa sekitar kampus Indralaya yang masyarakatnya beternak sapi dengan cara mengembalakan ternaknya dilepas ke lingkungan yang banyak rerumputan. Dalam menghasilkan sapi yang sehat dan gemuk sebagai sapi yang akan dijual (sapi pembiakan) ataupun dalam bentuk daging sapi serta untuk pemanfaatan kotoran sapi untuk pupuk, maka dilakukan sosialisasi alat pencacah rerumputan makanan sapi kepada masyarakat. Kegiatan sosialisasi berupa paparan tentang tema pengabdian mengenai berbagai jenis rerumputan dan alternatif makanan sapi yang bergizi, praktek menggunakan alat pencacah yang dibuat dan hal lain tentang sekitar beternak sapi serta manajemennya. Kegiatan telah berhasil dilakukan dengan baik yang dibuktikan antusiasnya masyarakat mengikuti kegiatan dan pertanyaan yang diajukan kepada tim pelaksana. Teknologi alat pencacah daun ini dapat dikategorikan Teknologi Tepat Guna karena peralatannya sederhana, murah, dan inovatif.

PENINGKATAN PEMAHAMAN PENGGUNAAN CAIRAN PEMOTONGAN RAMAH LINGKUNGAN DI BENGKEL LAS DAN BUBUT TRIS PALEMBANG Muhammad Yanis; Nukman Nukman; Aneka Firdaus; Nova Yuliasari
Aptekmas Jurnal Pengabdian pada Masyarakat Vol 5 No 1 (2022): APTEKMAS Volume 5 Nomor 1 2022
Publisher : Politeknik Negeri Sriwijaya

Efforts to preserve the environment and natural resources, currently the machining process is directed to apply environmentally friendly machining. One of them is by using cutting fluid from vegetable oil. Vegetable oil as a substitute for mineral oil which is known to be non-renewable, non-biodegradable, carcinogenic, has an impact on health and the environment. This service activity aims to increase knowledge to machine tools for small industrial partners in applying environmentally friendly cutting fluids. The partner workshop is a Tris welding and lathe workshop located in the Kelurahan Kebun Bunga, Palembang. The implementation is carried out in one day with a limited number consisting of partner leaders and employees, other invited participants, and students. Based on the activities carried out, participants' understanding of the material presented increased by 84.4% and specifically material about environmentally friendly cutting fluids achieved the success of 88.9%. Partner workshops are very supportive of the activities carried out and want sustainable activities so that they have an effect on increasing their business.

Penerapan alat minimum quantity lubrication pada pemberian cairan pemotongan sebagai upaya pemesinan ramah lingkungan Muhammad Yanis; Al Antoni Akhmad; Barlin Barlin; Aneka Firdaus; Nova Yuliasari
Jurnal Inovasi Hasil Pengabdian Masyarakat (JIPEMAS) Vol 5, No 2 (2022): Jurnal Inovasi Hasil Pengabdian Masyarakat (JIPEMAS)
Publisher : University of Islam Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33474/jipemas.v5i2.13957

THE DIFFERENT MAGNETIC RESULTS OF ANEMI AND PPM MEASUREMENTS ON THE BURIED REMAINS OF A 13TH CENTURY FORTRESS Muhammad Yanis; Marwan Marwan; Bukhari Bukhari; Nazli Ismail
Jurnal Natural Volume 16, Number 2, September 2016
Publisher : Universitas Syiah Kuala

This study aimed to evaluate the different magnetic results of an electromagnetic induction with proton magnetometer measurements on an archaeological site. The electromagnetic induction allows measuring both the apparent magnetic susceptibility in part per thousand (ppt) and the apparent electrical conductivity in millisiemens (mS/m). A proton magnetometer measures the total magnetic intensity in nanotesla (nT), caused by the induced and remanent magnetisations. An archaeological site where historical documents indicated the presence of a 13th century fortress that built by Lamuri Sultanate was selected as a test area. The measurement were conducted by divided the study area into 10 profiles.Some standard data processing have been applied to the measured data. The result of the first survey with electromagnetic induction showed low magnetic anomalies in the buried remains of Lamuri fortress. The similar value are shown as well by low magnetic field intensity in magnetometer measurement.

THE DIFFERENT MAGNETIC RESULTS OF ANEMI AND PPM MEASUREMENTS ON THE BURIED REMAINS OF A 13TH CENTURY FORTRESS Muhammad Yanis; Marwan Marwan; Bukhari Bukhari; Nazli Ismail
Jurnal Natural Volume 16, Number 2, September 2016
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jn.v16i2.5018

This study aimed to evaluate the different magnetic results of an electromagnetic induction with proton magnetometer measurements on an archaeological site. The electromagnetic induction allows measuring both the apparent magnetic susceptibility in part per thousand (ppt) and the apparent electrical conductivity in millisiemens (mS/m). A proton magnetometer measures the total magnetic intensity in nanotesla (nT), caused by the induced and remanent magnetisations. An archaeological site where historical documents indicated the presence of a 13th century fortress that built by Lamuri Sultanate was selected as a test area. The measurement were conducted by divided the study area into 10 profiles.Some standard data processing have been applied to the measured data. The result of the first survey with electromagnetic induction showed low magnetic anomalies in the buried remains of Lamuri fortress. The similar value are shown as well by low magnetic field intensity in magnetometer measurement.

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