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All Journal International Journal of Advances in Applied Sciences Jurnal Energi Dan Manufaktur Jurnal Simetris Jurnal Teknik Mesin Jurnal Teknik Mesin SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Rekayasa Mesin Jurnal Pengabdian Kepada Masyarakat Sakai Sambayan FLYWHEEL : Jurnal Teknik Mesin Untirta Jurnal Mechanical Jurnal Ilmiah Teknik Mesin Turbo : Jurnal Program Studi Teknik Mesin Wikrama Parahita : Jurnal Pengabdian Masyarakat Jurnal Elementer (Elektro dan Mesin Terapan) Jurnal Pengabdian Pada Masyarakat JTM-ITI (Jurnal Teknik Mesin ITI) Machine : Jurnal Teknik Mesin Prosiding Seminar Nasional Darmajaya Aquasains : Jurnal Ilmu Perikanan dan Sumberdaya Perairan Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) INSIST (International Series on Interdisciplinary Research) JURNAL KAJIAN TEKNIK MESIN Manutech : Jurnal Teknologi Manufaktur Jurnal Teknik Mesin Indonesia Dharma Raflesia : Jurnal Ilmiah Pengembangan dan Penerapan IPTEKS Jurnal Pengabdian Kepada Masyarakat Ungu ( Abdi Ke Ungu) Jurnal Pengabdian Kepada Masyarakat (JPKM) Tabikpun Jurnal Mesin Nusantara Journal of Innovation and Technology Indonesian Journal of Engineering and Science (IJES) ARMATUR : Artikel Teknik Mesin dan Manufaktur Jurnal Teknik Mesin Jurnal Puruhita METAL : Jurnal Sistem Mekanik dan Termal Prosiding Seminar Nasional Hasil Penelitian Sains, Teknik dan Aplikasi Industri Fakultas Teknik Universitas Lampung JITER-PM (Jurnal Inovasi Terapan - Pengabdian Masyarakat) AME (Aplikasi Mekanika dan Energi) : Jurnal Ilmiah Teknik Mesin Jurnal Polimesin Jurnal Teknologi dan Inovasi Industri Prosiding SNTTM Dharmakayana: Journal of scientists, engineers, educators and scientific activists related to society development Nemui Nyimah
Gusri Akhyar Ibrahim
Universitas Lampung
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Optimization of Hammer-Disc Mill Parameters During Producing Gluco-mannan Flour Using Taguchi Method Ibrahim, Gusri Akhyar; Burhanuddin, Yanuar; Hamni, Arinal; Tanti, Novri; Wibowo, Muhammad Pandu; Valiandra, Tito
Jurnal Teknik Mesin Indonesia Vol. 19 No. 2 (2024): Jurnal Teknik Mesin Indonesia
Publisher : Badan Kerja Sama Teknik Mesin Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36289/jtmi.v19i02.758

Abstract

Porang tubers contain glucomannan, which has health benefits for the human body. However, glucomannan also contains calcium oxalate, which is toxic. A Hammer-Disc mill (HDM) machine was used to separate glucomannan and calcium oxalate, categorized as a mechanical process. This study aims to optimize the parameters of the Hammer-Disc Mill machine for producing glucomannan flour by using the Taguchi Method. The selected parameters are the mass of the porang chip, motor rotation speed, and the distance of the hammer blades. The Taguchi Method was used to design an experiment using the Orthogonal Array L9 (3 factors, 3 levels). In this study, statistical analysis was carried out using Analysis of Variance (ANOVA) to determine each parameter's effect on glucomannan production. The glucomannan granules were taken using a screener of 60-80 mesh. The results show that the input mass parameter of porang chips significantly affects the glucomannan produced, which, F calculating 10,91 was more than f Table 5,41. The contribution of mass input of porang chips in percentage is 85.36%. Based on the results of the best response, the optimal condition for the production of glucomannan flour is to use a mass of 1 kg of porang chip input (level 3), motor rotation speed of 3000 rpm (level 3), and hammer spacing of 1 cm (level 3). By optimizing this parameter it is expected to increase the yield of glucomannan produced by the Hammer-Disc Mill machine.
Analisis Gaya Potong pada Pemesinan Bubut Magnesium AZ31 Dalam Keadaan Kering Ibrahim, Gusri Akhyar; Gustiyawan, Ahmad; Yahya, Ahmad; Hamni, Arinal; Burhanuddin, Yanuar
ARMATUR : Artikel Teknik Mesin & Manufaktur Vol. 4 No. 2 (2023): Jurnal Armatur
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/armatur.v4i2.3805

Abstract

The cutting of magnesium alloy by using a single cutting method as known by turning process. In the machining process, the cutting tool used in long time will experience wear and damage. The tool wear on the cutting edge was caused by cutting force that took place during cutting process. The cutting force depend one tool geometry, workpiece material, tool material and cutting condition. The objective of this research is to analyze the cutting force during turning process using the cutting force measurement. In this experiment, the cutting tool used of High Speed Steel, workpiece material of magnesium alloy and strain gauge sensor to measure cutting force. The results show that the spindle speed and cutting speed influenced on cutting force, in which increasing in spindle speed and cutting speed produced low cutting force. Whereas, increasing in feed rate and depth of cut significant effect on increasing the cutting.force
Optimasi Parameter Pemesinan Ulir Material Titanium Ti-6al-4v Eli Terhadap Jarak Pitch dan Sudut Ulir Menggunakan Metode Taguchi Ibrahi, Gusri Akhyar; Septiani, Cici; Hamni, Arinal; Burhanuddin, Yanuar; Harun, Suryadiwansa; Kusnadi, Andi
Jurnal Mesin Nusantara Vol 6 No 2 (2023): Jurnal Mesin Nusantara
Publisher : Universitas Nusantara PGRI Kediri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29407/jmn.v6i2.20182

Abstract

Paduan titanium merupakan salah satu material ringan yang banyak digunakan karena memiliki sifat yang ringan dan tahan terhadap korosi. Hal ini menunjukan bahwa pembuatan ulir pada titanium sangat mendukung untuk diaplikasikan pada bidang biomedis. Kepresisian geometri ulir akan memberikan pengaruh terhadap kwalitas ulir terutama pada saat ulir bekerja bila sudah digunakan sebagai penyambung tulang. Kesalahan geometri ulir titanium pada pemesinan bubut ulir dipengaruhi oleh kecepatan potong, kedalaman potong, dan jenis pemesinan. Penelitian ini meneliti respon kesalahan pitch,dan kesalahan sudut ulir pada diameter ulir M4x0.7 dengan 3 level dan 3 faktor lalu pengolahan datanya menggunakan proses optimasi Taguchi dengan variasi kecepatan potong sebesar 17.58, 21.35, 25.12 m/min, kedalaman potong sebesar 0.085, 0.108, dan 0.143 mm, serta pemesinan bubut yang digunakan yaitu pemesinan kering, menggunakan pelumas minyak sawit dan menggunakan pelumas minyak sintetik. Hasil optimal didapatkan pada kombinasi kondisi pemotongan dengan factor kecepatan potong 25.12 m/min dan kedalaman potong 0.108 mm serta pelumas kelapa sawit dimana respon kesalahan pitch 0.170 mm dan Kondisi pemotongan optimal pada kesalahan sudut ulir yaitu pada parameter kecepatan potong 17.58 m/min kedalaman potong 0.085 mm dan jenis pemesinan kering dimana respon kesalahan sudut 0.260°.
Implementasi Pengering Tepung Aci Di UMKM Mi Aci Pakde Sugeng Tiyuh Pulung Kencana Tulang Bawang Barat Akhyar, Gusri; Hamni, Arinal; Afriani, Lusmeilia; Sartika, Dewi; Subeki; Niswah, hamimatun
JITER-PM (Jurnal Inovasi Terapan - Pengabdian Masyarakat) Vol. 2 No. 1 (2024): JITER-PM
Publisher : Politeknik Caltex Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35143/jiter-pm.v2i1.6216

Abstract

Cassava flour or tapioca flour is one of the types of cassava products that has been widely developed as the main raw material for producing wet tapioca noodles. The village of Pulung Kencana in West Tulang Bawang Regency has local wisdom in the form of processed food products, such as tapioca noodles produced from cassava flour. Cassava flour is obtained from the result of tapioca or the sediment of grated cassava, which is dried for some time until it reaches a moisture content of 12%. The drying process is done naturally and highly depends on sunlight, sometimes hindered during periods without heat. Therefore, a drying tool is created using a homemade heater fueled by gas or firewood. The hot air in the pipe is blown into the drying chamber, which functions to dry the flour placed in tiers. The air moves from the bottom to the higher racks, allowing the heat to be used gradually. The drying chamber's capacity can dry 30 kg in one drying session, within 8 hours, achieving a moisture content of 12%. When using LPG, it requires 8 hours. The drying results show that the moisture content is 12%, meeting the required conditions
Analisis Multi Varian Pemesinan Bor Magnesium AZ31B Menggunakan Metode Taguchi Gray Relational Analysis Leksono, Panji Mario; Yanuar Burhanuddin; Gusri Akhyar Ibrahim; Suryadiwansa Harun
Jurnal ELEMENTER (Elektro dan Mesin Terapan) Vol 10 No 1 (2024): Jurnal Elektro dan Mesin Terapan (ELEMENTER)
Publisher : Politeknik Caltex Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35143/elementer.v10i1.6237

Abstract

This research aims to obtain optimal drilling machining parameters in response to tool life, surface roughness and response to the influence of electric current. Tool life is a derivative of the wear value obtained. The Taguchi method is often used to determine optimal quality in single response manufacturing processes. However, when there is more than one response, researchers often use the Gray Relational Analysis (GRA) method. This research was carried out on the response of tool life, surface roughness and the effect of electric current on Magneisum AZ31B type material using four factors and mix levels. The chisel diameters used are 8 mm and 10 mm. The spindle speed is set at 890 rpm, 1270 rpm, 1700 rpm and 2000 rpm, feeding uses values of 0.1 mm and 0.3 mm, while the point angles used are 118° and 135°. The optimal results obtained in this research were using a tool diameter of 8 mm, spindle speed of 890 rpm, feeding of 0.1 mm, and point angle of 118°. Keywords: Drilling, Taguchi Method, Gray Relational Analysis, Tool Wear, Surface Roughness, Electric Current.
SENSORY CHARACTERISTICS OF SHEREDDED SPICED FISH FORMULATIONS WITH DIFFERENT PROCESSING TREATMENTS Sartika, Dewi; Akhyar, Gusri; Julita, Sela
AQUASAINS Vol 12, No 2 (2024): March 2024
Publisher : Jurusan Perikanan dan Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/aqs.v12i2.p1474-1483

Abstract

Tilapia (Oreochromis niloticus) is a type of fish cultivated by local people in Lake Ranau, West Lampung Regency, Lampung Province. Fish is easily damaged by chemical and microbiological processes, so proper handling and processing is needed to extend its shelf life. Shredded spiced fish is an innovative diversification of shredded fish product made from tilapia fish ori-ginating from Lake Ranau with added of multi-spices. Multi-spices are known to have high antioxidant content, so they can improve the quality and develop the taste of shredded spiced fish product.  The multi spices seasoning formulation and process stages greatly influence the characteristics of the shredded produced.  This research aims to study the formulation and processing treatment of the sensory characteristics of the best shredded spices fish. Determining the best formulation and processing treatment was determined using the sensory test method, namely a scoring test involving 30 panelists, then the data was processed using Microsoft Excel 2021. The result showed that the shredded spiced fish product with sample code 212 (without stir-frying) produced the best characteristics with a texture parameter value of 3.85; fragrance 4.05; colors 4.85; and tasted 4 with a total score of 16.75. Keywords: Multi spices, organoleptic, process stages, sheredded fish, tilapia.
Investigation of Drilling Parameters Affecting Borehole Circularity in Cortical Bone Dityamri, Arzaq Guruh; Ibrahim, Gusri Akhyar; Harun, Suryadiwansa; Burhanuddin, Yanuar
SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Vol. 18 No. 2 (2024): SINTEK JURNAL
Publisher : Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/sintek.18.2.71-79

Abstract

Cortical bone drilling is a critical step performed prior to implant bolt placement, where drilling parameters play a significant role in the success of the procedure. This study investigates the effects of rotational speed, feed rate, and cooling fluid type on the outcome of the drilling process. A Box-Behnken experimental design was employed, involving 15 samples. Drilling operations were conducted using an SS316L drill bit on a 3-axis CNC machine. Circularity was analyzed using a Mitutoyo PJ3000 profile projector by measuring the x- and y-axis lines of the drill hole shadows under projector illumination. Hardness testing of bone specimens revealed an average microhardness of 45.48 HV with a standard deviation of 1.74, indicating their suitability as a human bone model. The lowest circularity value, 0.00125, was achieved at a rotational speed of 1,500 rpm, a feed rate of 60 mm/min, and in the absence of coolant. ANOVA results show that the feed rate (Vf) significantly affects circularity compared to rotational speed (V) and coolant, with a P-value of 0.0126 and an F-value of 8.86. These findings provide insights for optimizing cortical bone drilling procedures in biomedical applications. Future research should explore temperature distribution across the specimen and drill bit wear resistance resulting from the drilling process.
2D dan 3D Tekstur Permukaan Ti-6Al-4V ELI Akhyar Ibrahim, Gusri
Jurnal Teknologi dan Inovasi Industri (JTII) Vol 5, No 2 (2024)
Publisher : Fakultas Teknik, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtii.v5i2.94

Abstract

Material ringan paduan titanium memiliki  jenis struktur kristal hexagonal close packed (h.c.p), yang lebih dikenal dengan nama struktur alfa pada suhu ruangan. Struktur hcp dapat berubah menjadi struktur   body center cubic (b.c.c), yang dinamakan dengan fasa beta  pada suhu 882 derajat Celcius. Proses pemesinan yang berlansung dalam beberapa waktu telah menyebabkan peningkatan suhu pemesinan hingga mampu mencapai suhu  perubahan struktur paduan titanium. Peningkatan suhu tersebut adalah sebagai akibat dari gesekan antara benda kerja dan pahat potong, sehingga hal itu memberikan pengaruh terhadap struktur mikro dan tekstur permukaan benda kerja. Proses pembubutan dilakukan pada beberapa setting parameter kecepatan potong sebesar 55, 75 dan 95 m/min, kadar pemakanan sebesar 0.15, 0.25 dan 0.35 mm/rev, kedalaman potong sebesar 0.10, 0.15 dan 0.20 mm dan jenis pahat potong yang digunakan adalah tidak dilapisi, dilapisi secara CVD. Penelitian ini bertujuan untuk menginvestigasi pengaruh proses pemesinan terhadap perubahan tekstur permukaan titanium yang baru saja dimesin menggunakan pahat karbida jenis insert dalam keadaan pemesinan kering atau tanpa menggunakan fluida. Hasil penelitian menunjukan bahwa  pemotongan kadar makan yang tinggi  sebesar 0.35 mm/rev memberikan pengaruh signifikan terhadap tekstur permukaan sepanjang proses pemotongan terutama pada tahap akhir proses pemesinan. Perubahan gerakan makan merupakan faktor yang paling menentukan terjadinya perubahan tekstur permukaan pada proses pemesinan bubut. Scanning electron magnetic menunjukan bahwa pada bagian puncak atau batas antara kadar pemakanan  dengan puncak berikutnya terjadi material yang terdeformasi sebagai akibat dari plastisitas aliran material titanium selama proses pemotongan berlansung pada suhu tinggi. Tekstur permukaan pada daerah puncak merupakan batas antara dua jarak kadar pemakanan, dimana batas antara dua jaran kadar pemakanan adalah pada bagian pinggir ujung mata pahat, yang mengalami aus.
Sistem Produksi Bersih dan Terintegrasi Untuk Pengolahan Kopi Lampung untuk Meningkatkan Daya Saing dan Mutu Produk Harun, Suryadiwansa; Hamni, Arinal; Ibrahim, Gusri Akhyar; Burhanuddin, Yanuar
Jurnal Teknologi dan Inovasi Industri (JTII) Vol 2, No 1 (2021)
Publisher : Fakultas Teknik, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtii.v2i1.29

Abstract

Permasalahan utama UKM kopi Lampung adalah rantai produksinya panjang, mesin atau peralatan pengolahannya masih konvensional dan tidak ramah lingkungan. Akibatnya, produk kopi yang dihasilkan berkualitas rendah, yaitu biji kopi memiliki kadar air hanya 18%, banyak pecah, tidak bersih dan tidak seragam. Juga energi fosil dan bahan bakar kayu dominan digunakan dalam lini produksi kopi sehingga tidak ramah lingkungan. Konsep produksi bersih dan sistem terpadu pengolahan kopi Lampung diterapkan, guna menjadikan industri kopi Lampung sebagai penghasil produk kopi berkualitas dan berdaya saing tinggi, serta ramah lingkungan. Penerapan konsep ini dibagi menjadi tiga tahap, yaitu pertama membuat model sistem produksi kopi. Tahap kedua menerapkan model ke dalam lini pengolahan kopi. Tahap terakhir mengevaluasi model yang telah diterapkan melalui penelitian untuk menyempurnakan model sistem produksi kopi. Sistem produksikopi Lampung telah diterapkan dan diperoleh hasil yaitu biji kopi dapat dikeringkan hingga kadar air 12,5% dengan waktu pengeringan sekitar 30 jam dan biji kopi yang dikupas tidak pecah. Biji kopi yang dihasilkan berukuran seragam dan bersih. Selain itu, limbah kopi dapat diubah menjadi energi panas melalui reaktor gasifikasi, yang suhunya sekitar 500°C dan alirannya terus menerus, sehingga dapat digunakan untuk mengeringkan dan memanggang biji kopi. Hasil yang diperoleh menunjukkan adanya peningkatan kualitas biji kopi sehingga UKM kopi diharapkan memiliki posisi tawar dan daya saing yang lebih baik dalam perdagangan kopi guna meningkatkan perekonomiannya. Selain itu, substitusi bahan bakar fosil dan kayu bakar menjadi energi panas yang berasal dari gasifikasi limbah kopi berpotensi menurunkan biaya produksi dan menciptakan kelestarian lingkungan.
Analysis of PM2.5 Level Related to Vehicle Activities in Campus Parking Lot Panuju, Achmad Yahya Teguh; Susila, M Dyan; Wahono, Endro Prasetyo; Sulistiyanti, Sri Ratna; Ibrahim, Gusri Akhyar
Jurnal Inovasi Teknologi Vol 5 No 2 (2024): October
Publisher : Engineering Forum of Western Indonesian Government Universities Board (Forum Teknik, BKS-PTN Wilayah Barat) Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The number of vehicle usage, especially motorcycles, in Indonesia has significantly increased in the past 10 years, particularly among young people. This has had an impact on the declining air quality in public places, including on campus grounds. PM2.5, as one of the hazardous pollutants to health, needs to be given special attention regarding its dispersion concentration in areas heavily frequented by the public, such as parking lots on campus. This study analyzes the level of PM2.5 concentration in the campus parking lots at Universitas Lampung, with the aim of observing the pattern of PM2.5 pollution in the campus area, considering the increasing number of motorcycles entering the campus every year. The measurement of PM2.5 levels was conducted using a light scattering sensor in two parking lots with different microenvironments, and then its correlation with motorcycle activities at each location was analyzed using simple regression. Based on statistical analysis, it was found that the differences in microenvironments affect PM2.5 levels significantly. The number of motorcycle activities also has a positive correlation with the level of PM2.5, where the average PM2.5 concentration recorded has exceeded the threshold set by the government, which is 15 µg/m3 per day. However, the effect of the microenvironment in this study is stronger than the number of vehicles. Therefore, in the future, appropriate policies and strategies are needed to reduce PM2.5 concentrations in public areas, especially on campuses, to prevent the associated risks of the pollution.
Co-Authors . Tarkono, . A Hamni Achmad Yahya Teguh Panuju Achmad Yahya Teguh Panuju Afriani, Lusmelia Agus Haryanto Agus Setiawan Ahmad Su’udi Ahmad Yahya Ahmad Yahya TP Ahmad Yahya TP, Ahmad Akbar, G I Akhmad Isnain Pulungan Akhmad Isnain Pulungan, Akhmad Isnain Alan Suseno Alim Fadila Rahman Amrizal Amrizal An Nisa Magnolia Andi Kusnadi Anjar Tri Gunadi Anjar Tri Gunadi, Anjar Tri Arinal Hamni Arinal Hamni Arinal, Arinal Armulani Patihawa Arzaq Guruh Dityamri Arzaq Aufadhia Bagus Ramadhan Bagus Saputra Burhanuddin, Y Burhanuddin, Yanuar DEWI SARTIKA Dewi Sartika DEWI SARTIKA Didiek Embrijakto Dimas Rizky Hermanto Dio Restu Putra Ardhika Dityamri, Arzaq Guruh Dityamri, Arzaq Guruh Dodi Wibowo Dodi Wibowo, Dodi Dwiastanto, Lucius Patria Giri Eko Agus Supriyanto Endra Saputra Endro Prasetyo Wahono Ferdianto, Edo Firmansyah, Andre Gustiyawan, Ahmad Hamni, A Hamni, Arinal Henddy Purnomo Henddy Purnomo, Henddy Hendra H Hermiyetti Hernadewita Indra Hermawan Irwan Sukri Banuwa Joni Iskandar Joni Iskandar Julita, Sela Karina Gracia Agatha Tambunan Leksono, Panji Mario Lestari, Sri Maria Puji Libiru, Rofika Lusmeilia Afriani Lusmelia Afriani M. Dyan Susila M. Ridho Ulya Mahyudin, Yovial Milyanti, Rita Muh Thohirin Muhammad Daud Aria Falah Muhammad Iqbal Muhammad Iqbal Muhammad Taqwa N Tanti Nanda Radigo Putra, Deky Niswah, hamimatun Novri Tanti, Novri NUR EFENDI Nur Efendi Nurwijayanti P N Putinela Panuju, A YT Patihawa, Armulani Pramono, Atik Pratondo, Tanto Puan Mutia Ayunisa Putinela, P N R Ramadhan Rafi, S A Rahmayetty Ramadhan, Bagus Ramadhan, R Rantaujaya, Agus Reski Septiana Rispandi Rizki Ramadhan Robby Saputra S A Rafi Sahid Ar Rafi Salsabila, Unik Hanifah Saputra, Endra Seldi Prayoga Septiani, Cici Shirley Savetlana Shirley Savetlana, Shirley Sri Hidayati Sri Maria Puji Lestari Sri Maria Puji Lestari Sri Maria Puji Lestari Sri Puji Maria Sri Ratna Sulistiyanti Sri Waluyo Subeki Subeki Subeki Subeki, Subeki suci hardina rahmawati Supriyadi, Eko Agus Suryadiwansa Harun Sussi Astuti Syaipudin Anwar T. Tarkono Tanti, N Tanto Pratondo Utomo Tarkono Tarkono Tarkono Tarkono, Tarkono Trisya Septiana Udin Hasanudin Valiandra, Tito Valiandra, Tito Wahyu Budiono Wahyu Hidayat Wibowo, Muhammad Pandu Wijaya, Bayu Frans Wisnaningsih Yahya, Achmad Yanuar Burhanuddin Yanuar Burhanuddin Yusman Zamzami Yusman Zamzami, Yusman