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All Journal JMPM (Jurnal Material dan Proses Manufaktur) Jurnal Ilmiah Universitas Batanghari Jambi Infotekmesin Jurnal Teknologi dan Manajemen Journal of Community Services in Sustainability Serambi Engineering Majalah Teknik Mesin J-Proteksion : Jurnal Kajian Ilmiah dan Teknologi Teknik Mesin
Abdul Wahid Arohman
Politeknik STMI Jakarta
Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering

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ANALISIS PERANCANGAN LTE 3 KECAMATAN DI KOTA DEPOK BERDASARKAN METODE CAPACITY DAN COVERAGE Desy Agustin; Abdul Wahid Arohman
Jurnal Teknologi dan Manajemen Vol. 19 No. 2 (2021): JURNAL TEKNOLOGI DAN MANAJEMEN
Publisher : Politeknik STMI Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (389.305 KB) | DOI: 10.52330/jtm.v19i2.35

Abstract

Peningkatan kebutuhan layanan data mendorong adanya beberapa teknik untuk dapat mengklasifikasi kebutuhan layanan data pada suatu daerah. Teknologi 4G LTE adalah salah satu teknologi yang memiliki kecepatan lebih dari tiga kali dibandingkan dengan teknologi HSDPA, sehingga diharapkan dengan kecepatannya yang lebih tinggi dapat memenuhi kebutuhan pelanggan data pada saat ini. Penelitian bertujuan untuk memberikan gambaran site yang dibutuhkan dalam perancangan sistem LTE pada tiga kecamatan di Kota Depok. Metode penelitian yang digunakan adalah menggunakan metode capacity dan coverage area menggunakan data statistik daerah Kota Depok. Hasil penelitian menunjukkan bahwa Coverage area site dipengaruhi  dari golongan daerah tersebut seperti golongan daerah urban dan dense urban. Coverage site berpengaruh terhadap penentuan jumlah site karena adanya redaman pada area dense urban  yang lebih besar dibandingkan area urban. Redaman pada daerah dense urban lebih besar disebabkan adanya pantulan dari bangunan atau gedung tinggi di lingkungan sekitar sehingga mempengaruhi coverage site pada area tersebut.
PENGARUH KUAT ARUS TERHADAP KEKERASAN SUPERALLOY BERBASIS NIKEL MENGGUNAKAN TIG Abdul Wahid Arohman; Sanurya Putri Purbaningrum; Edwin Sahrial Solih; Hasan Sudrajat
Jurnal Teknologi dan Manajemen Vol. 20 No. 1 (2022): JURNAL TEKNOLOGI DAN MANAJEMEN
Publisher : Politeknik STMI Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52330/jtm.v20i1.37

Abstract

Komponen mesin pesawat yang sering mengalami kerusakan adalah turbin yang berbahan dasar nikel. Salah satu solusi untuk mengatasi masalah tersebut adalah mengganti dengan turbin yang baru dengan cara pengelasan. Masalah yang timbul dalam pengelasan ini adalah tidak adanya filler rod pasaran yang cocok untuk bahan dasar superalloy nikel sehingga perlu dilakukan rekayasa filler rod. Pengelasan dengan menggunakan rekayasa filler rod memerlukan pengujian kuat arus agar diketahui kuat arus yang tepat dalam menghasilkan panas untuk mencairkan logam dasar. Penelitian ini bertujuan untuk mengetahui pengaruh kuat arus terhadap kekerasan material superalloy berbasis nikel yang dilakukan pengelasan TIG menggunakan rekayasa filler rod. Kuat arus pada saat pengelasan divariasi sebesar 70 A, 80 A dan 100 A sehingga didapatkan 3 spesimen uji. Masing-masing spesimen diuji kekerasan micro Vickers. Dari hasil pengujian didapatkan bahwa pada daerah las mempunyai nilai kekerasan yang paling tinggi di bandingkan daerah HAZ, daerah logam induk dan daerah logam induk bagian ujung.
Analisis Wake Area Desain Mobil Box dengan Simulasi Aerodinamika Edwin Sahrial Solih; Sanurya Putri Purbaningrum; Abdul Wahid Arohman; Hendi Lilih Wijayanto
Jurnal Ilmiah Universitas Batanghari Jambi Vol 22, No 2 (2022): Juli
Publisher : Universitas Batanghari Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/jiubj.v22i2.2147

Abstract

The standard box car design has a large drag and wake area which results in high fuel consumption. One way to reduce drag and wake area is to modify the box car design. Modifications were made by adding an aerokit spoiler and deflector to a standard box car which is expected to reduce drag and wake areas. The next step is to design a simulation using CFD-based CAD. The analysis was carried out with three variations of speed, namely 60 km/hour, 80 km/hour and 100 km/hour. The simulation results show that the design of the box car with the modification of the addition of aerokit spoilers and deflectors can reduce the drag and wake areas.
Analisis Peningkatan Waktu Setup Menggunakan Sistem Meja Hidrolik Dengan Metode Single Minute Exchange Die (SMED) Di PT Ganding Toolsindo Desy Agustin; Abdul Wahid Arohman; Muhamad Agus; Hasan Sudrajat
Jurnal Teknologi dan Manajemen Vol. 21 No. 2 (2023): JURNAL TEKNOLOGI DAN MANAJEMEN
Publisher : Politeknik STMI Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52330/jtm.v21i2.107

Abstract

Pada dunia industri saat ini memerlukan suatu peralatan yang dapat bekerja secara otomatis, sehingga mampu meningkatkan waktu setup, dan mempersingkat waktu produksi. Tujuan dari penelitian ini untuk merancang sebuah peralatan yang mampu mendukung kegiatan produksi berjalan lebih baik kemudian dianalisis menggunakan metode SMED. Peralatan yang dimaksud adalah sebuah mesin press hidrolik dan meja rolling yang diharapkan dapat membantu proses kerja penggantian dies sehingga lebih mudah dan cepat. Permasalahan lainnya yang timbul karena proses penggantian dies yang lama adalah supply chain yang sering terlambat untuk perpindahan produk ke  lini produksi selanjutnya. Berdasarkan permasalahan tersebut, maka bidang fokus kedua pada penelitian ini adalah upaya minimalkan waktu yang diperlukan saat setup mesin ketika melakukan pergantian/ changeover komponen pada rancangan mesin press hidrolik dan meja rolling yang telah dibuat. Hasil yang diperoleh pada meja hidrolik yang telah dibuat sebelumnya di analisis menggunakan metode SMED untuk penggantian dies mendapatkan peningkatan laju pergantian dies sebesar 46 %. Hal ini mendapatkan kesimpulan bahwa dengan penggunaan meja hidrolik pada penggantian dies mesin press 110 Ton dapat meningkatkan laju produksi pada perusahaan tersebut sehingga kegiatan produksi meningkat lebih baik.
Analisis Finite Element Aluminium Alloy 6063-T5 Pada Jig Positioning Untuk Perakitan Rooftop Interior Mobil Desy Agustin; Abdul Wahid Arohman; Muhamad Agus; Hasan Sudrajat; Solihin Solihin
Jurnal Ilmiah Universitas Batanghari Jambi Vol 23, No 2 (2023): Juli
Publisher : Universitas Batanghari Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/jiubj.v23i2.3654

Abstract

Tools in the production process are needed in the production process in order to accelerate and improve the quality of production, especially in the automotive industry. In this study, a jig positioning machine design will be designed which is used when assembly on the roof panel of a car so that it can help areas that are difficult to reach when doing assembly or design on the roof panel of the car. After designing the required design for the car interior roof panel assembly, it is necessary to test the design of the machine so that when the material on the machine ready to be made is already in the safe category. Testing on the machine is carried out using a material with the type of Aluminum Alloy 6035-t5 with the addition of different force factors, namely 34.3N, 39.2N, and 44.1N. The addition of the force factor is based on the maximum load given when doing the roof panel assembly on the car. The test is carried out by performing simulations using CAD Software on the arm of the jig positioning machine which will be the support when applying the load. The simulation carried out will analyze the value of material suitability factors including the value of deformation, strain-stress, and factor of safety on the jig positioning machine. The results of the simulation show that there is a change in the value of the material suitability factor due to the difference in the applied force. The suitability factor of the material on the designed jig positioning arm can accommodate the weight of the load with a maximum force of 44.1N with a maximum displacement value of 1.062e+02 mm, a stress value of 1.087e+08N/m^2, a FOS value of 1.33e+00, and a Strain value of 1 ,19e-03. Based on the simulation results of the suitability factor of the material, the jig positioning arm is within safe limits.
Analisis Preventive Maintenance pada Mesin Injection Molding dengan Metode Mean Time Between Failure dan Mean Time to Repair di PT. XZY Abdul Wahid Arohman; Muhamad Agus; Solahhudin; Desy Agustin
Jurnal Serambi Engineering Vol. 9 No. 1 (2024): Januari 2024
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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

Abstract

A series of predictable preventive activities to overcome machine failure during operation is very important because it produces good and stable spare parts. This research was carried out with the aim of preventing machine damage due to short circuits that occur in injection molding machines used for the sudden production of automotive component spare parts. The research was carried out using the Mean Time Between Failure (MTBF) and Mean Time To Repair (MTTR) approaches to calculate the time between the machine breaking down and the time it was repaired. The MTBF calculation results in this research were 72.9 hours or less than 4 days the engine would experience damage or every 72.9 hours the engine would experience damage again. The MTTR value obtained is 2 hours, where in 2 hours the work to overcome the damage can be done.
Analisis Pengaruh Clearance terhadap Hasil Potong pada Proses Stamping Produk Member Floor Side Inner LH Desy Agustin; Ibnu Syihab; Abdul Wahid Arohman; Edwin Sahrial Solih; Fredy Sumasto
Jurnal Serambi Engineering Vol. 9 No. 1 (2024): Januari 2024
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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

Abstract

The development of production demands in the automotive industry has resulted in an increase in the need for various shapes and types of metal materials. Components used in automotive industrial production require the strength and durability of metal materials. The products produced in this sector are very diverse, including engine components, vehicle body parts and various vehicle accessories. To be able to meet customer demands for quality and efficiency, adequate production process support tools are needed, of course, such as dies. This tool is very suitable for making products from sheet metal with the same shape and in large quantities in a relatively short time. However, in making printing equipment (Dies) it does not require operation, it requires precise calculations so that accurate process results will be obtained, especially in calculations and clearance accuracy. Efforts to improve quality and efficiency in the product manufacturing process, for this reason, an analysis and improvement of the clearance of the cut results on SPC440 material with a thickness of 1 mm for the Member Floor Side Inner Lh product was carried out. The results of the improvement in the clearance of the part were able to optimize the clearance value from 0.06mm to 0.075mm
Redesain Dies Proses Blank-Pierce dengan Penyesuaian Mesin Press Guna Meningkatkan Efisiensi Produk Reinforcement Quarter Panel Extension RH/L Desy Agustin; Ibnu Syihab; Sanurya Putri Purbaningrum; Abdul Wahid Arohman; Indra Rizki Pratama
Jurnal Serambi Engineering Vol. 9 No. 2 (2024): April 2024
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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

Abstract

The redesign of the die design in the blank-pierce process for the RH/LH quarter panel extension reinforcement product was carried out using field observations to obtain actual data. The production process consists of five stages: blanking, piercing, restriking, bending and forming. Meanwhile, in the redesign process, the RH/LH quarter panel extension reinforcement product is evaluated in the blanking and piercing die processes. Cycle time analysis after the tool design has been redesigned shows the potential for increasing efficiency by reducing process time. MPP data is used as a guide for die design with relevant machine specifications, die size and materials. Machine pressure and tonnage calculations were carried out for the current die design and the revised version, showing significant improvements in production efficiency. The die redesign was carried out to increase output per stroke and to use more sophisticated automation processes. The results of this research show that improved die design can increase production efficiency and productivity by reducing the number of strokes required and properly adjusting machine capacity.
Usulan Integrasi Data Absensi dengan Teknologi Fingerprint menggunakan Server Internal Perusahaan Sebagai Solusi Penerapan Indi 4.0 di PT Fuji Seat Indonesia Agustin, Desy; Arohman, Abdul Wahid; Mustofa, Mustofa; Salati, Dianasanti; Lai, Kenny; Putra, Adhitya Nugraha Duwan; Simajuntak, Felizia Gabriella
Journal of Community Services in Sustainability Vol. 2 No. 1 (2024): Journal of Community Services in Sustainability
Publisher : Politeknik STMI Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52330/jocss.v2i1.274

Abstract

Revolusi industri 4.0 mendorong integrasi teknologi cyber dalam ranah industri, termasuk penggunaan Big Data, Cloud Computing, manufaktur aditif, Internet of Things (IoT), dan kecerdasan buatan. Perusahaan-perusahaan, termasuk PT Fuji Seat Indonesia, mulai menerapkan teknologi untuk memperbarui sistem absensi karyawan dari yang awalnya manual menjadi berbasis digital, menggunakan teknologi fingerprint, sensor mata, atau pengenalan wajah. Dalam konteks ini, integrasi data absensi dengan teknologi fingerprint melalui Server Intranet Internal Perusahaan di PT Fuji Seat Indonesia memberikan manfaat dalam keamanan, efisiensi manajemen, dan peningkatan produktivitas. Sebelum integrasi, proses bisnis terfragmentasi dan bergantung pada pelaporan manual, sementara setelah integrasi, terjadi transformasi signifikan dalam pengelolaan akses, pengurangan biaya dan waktu, serta peningkatan akurasi data. Dengan demikian, integrasi ini membawa dampak positif terhadap efisiensi dan produktivitas perusahaan
Pelatihan Pengolahan Sabut Kelapa Menjadi Jok Motor di Desa Kalapagenep Tasikmalaya Arohman, Abdul Wahid; Agus, Muhamad; Marizka, Dewi Auditiya; Imdam, Irma Agustiningsih; Solih, Edwin Sahrial
Journal of Community Services in Sustainability Vol. 2 No. 1 (2024): Journal of Community Services in Sustainability
Publisher : Politeknik STMI Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52330/jocss.v2i1.275

Abstract

This article is the result of a Community Service activity aimed at enhancing the creativity of the residents of Kalapagenep Village, Tasikmalaya, in managing coconut husk waste. The identified problem is that coconut husk waste is processed into cocopeat and cocofiber has not been widely utilized to create new products. To address this issue, we conducted training on processing coconut husk into cocopeat and coco fiber to produce high-value commodities. As a result, a motorcycle accessory product in the form of a motorcycle seat filled with coco fiber has been successfully created. It is hoped that this training will provide positive benefits to the local community and become a new source of livelihood, helping to reduce unemployment. Artikel ini merupakan hasil dari kegiatan Pengabdian Kepada Masyarakat yang bertujuan untuk meningkatkan kreativitas masyarakat Desa Kalapagenep Tasikmalaya dalam mengelola limbah sabut kelapa. Masalah yang diidentifikasi yakni limbah sabut kelapa yang telah diproses menjadi cocopeat dan cocofiber masih belum banyak dimanfaatkan menjadi produk baru. Untuk mengatasi masalah tersebut, kami melakukan kegiatan pelatihan pengolahan sabut kelapa cocopeat dan cocofiber menjadi komoditas yang bernilai jual tinggi. Hasilnya sebuah produk aksesoris sepeda motor berupa jok motor dengan isian jok berupa cocofiber telah berhasil dibuat. Diharapkan dengan adanya pelatihan ini dapat memberikan manfaat yang positif untuk masyarakat sekitar dan menjadi ladang mata pencaharian baru yang mampu mengurangi pengangguran.
Co-Authors Aji, Reza Melliyanno Putra Al Kautsar Permana Angga Tegar Setiawan Desy Agustin Dewi Auditiya Marizka Hasan Sudrajat Hasan Sudrajat Hendi Lilih Wijayanto Ibnu Syihab Indra Rizki Pratama Irma Agustiningsih Imdam Lai, Kenny Lianny, Indah Kurnia Mahasih Muhamad Agus Muhamad Agus Muhamad Agus Muhamad Agus Mustofa Mustofa Purwojatmiko, B. Handoko Putra, Adhitya Nugraha Duwan Ridho Ridho Hans Gurning Ridho Hans Gurning Salati, Dianasanti Sanurya Putri Purbaningrum Satiman , Bayu Satria, Adam Shalihah, Adinda Rahmah Simajuntak, Felizia Gabriella Solahhudin Solih, Edwin Sahrial Solihin Solihin Sumasto, Fredy Suwandy Suwandy