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All Journal Traksi : Majalah Ilmiah Teknik Mesin AL-JAZARI JURNAL ILMIAH TEKNIK MESIN Jurnal Teknik Mesin Jurnal Teknik Mesin Indonesia Jurnal Mesin Nusantara Jurnal Ilmiah Wahana Pendidikan Jurnal Sains dan Teknologi Journal Serambi Engineering (JSE)
Rizal Hanifi
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Rancang Bangun Mesin Pengisi Bantal Sebagai Alat Bantu Produktivitas UMKM Syahdila Darama; Rizal Hanifi; Reza Reza
Jurnal Ilmiah Wahana Pendidikan Vol 9 No 6 (2023): Jurnal Ilmiah Wahana Pendidikan
Publisher : Peneliti.net

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.7790146

Abstract

The economy in Indonesia is very diverse, there are many things that can help the community’s economy. One of them is from the industrial sector which plays a role in supporting the national community’s economy to design simple and affordable tools for MSMEs through this final project. Nationally, UMKM have an important role in improving the nation’s economy because they are labor-intensive businesses that require a lot of labor. The micro, small, medium enterprises UMKM group involves many business groups as a reinforcement in avoiding the economic crisis. Residents in Indonesia definitely use pillows for comfort in a comfortable sleep and can improve the quality of stable sleep to carry out daily activities. The solution to this problem is to make innovative updates so that they are not monotonous. Manual human resources cause a lot of time and production is less rapid and requires machines to speed up and save energy. Design and build this simple pillow filling machine that can be operated directly by the general public who can produce one pillow with a size of 60 cm x 50 cm with a time of 2.31 minutes/pillow and can get 200 pillows/day, 1.200 pillows/week, 5.200 pillows/month, 62.400 pillows/year with normal work 8 hours of work. The need for dakron silicon materials for production needs so that the budget plan issued is managed which is 66.66 kg/day, 400 kg/week, 1.733 quintals/month, and 20.800 quintals/year.
Analisa Pengaruh Berat Roller CVT 15 Gram, 10 Gram dan 8 Gram Terhadap Daya Dan Torsi Pada Sepeda Motor All New Vario 149 CC Dengan Metode Pengujian Dynotest Mourad Rif’at Dien Yahya; Rizal Hanifi; Iman Dirja
Jurnal Ilmiah Wahana Pendidikan Vol 9 No 7 (2023): Jurnal Ilmiah Wahana Pendidikan
Publisher : Peneliti.net

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.7816344

Abstract

One of the supporting factors for automatic motorcycle to get good performance is the roller. Many users do not know about the influence of the roller on torque and power. In this final project aims to determine the effect of roller weight variations on motorcycle torque and determine the effect of roller weight variations on motorcycle power. This final project research uses automatic transmission motorcycles, namely Honda All New Vario 149cc motorcycles in 2018. In this test using three types of roller weight variations aims to determine the effect of using the CVT on the power and torque of the Honda All New Vario 149cc motorcycles, namely roller weight 15 grams, roller weight 10 grams and roller weight 8 grams using the dynotest method and using a tool called a dynamometer. From the test results of the dynamometer tool on the 15 gram roller test it produces a maximum power of 10.11 HP at 8000 RPM and produces a maximum torque of 31.5 N.m at 2000 RPM, on the 10 gram roller test it produces a maximum power of 10.9 HP at 8000 RPM and produces a maximum torque of 31.9 N.m at 2000 RPM and in the 8 gram roller test produces a maximum power of 11.22 HP at 8000 RPM and produces a torque of 22.9 N.m. The results of this study resulted in a comparison of the three rollers by showing the effect on the weight of the roller used on the automatic motorcycle CVT
Analisa Kinerja Koil Aftermarket Terhadap Performa Kerja Mesin Pada Scooter Vespa PX 150 Jagad Baroansyah; Rizal Hanifi; Aa Santosa
Jurnal Ilmiah Wahana Pendidikan Vol 9 No 8 (2023): Jurnal Ilmiah Wahana Pendidikan
Publisher : Peneliti.net

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.7886093

Abstract

Over time, the performance of a motorcycle decreases due to our age or behavior when driving a vehicle. Therefore, there is a need for a solution to restore or even improve the performance of the motorcycle without having to replace the engine. One way to improve the combustion process is to improve the ignition system to improve engine performance. The components of the ignition system that affect the combustion process include CDI, coils, spark plug cables, spark plug caps, and spark plugs. Changes in ignition system components need to be made to see the difference in power produced and how much impact and effect it will have if using aftermarket coil products. From the results of the analysis and tests that have been carried out by the author on the vespa px 150 scooter by comparing between the standard coil and the aftermarket coil regarding power, torque, and rpm obtained results, when using the aftermarket coil, it was found that the results of increasing torque in the 3rd gear speed up with a value of 12.99 and getting the results of increasing power and torque at the acceleration of gear 4 with values of 10.28 and 13.52 And KOil Aftermaret does not fully increase the power and torque on the Vespa PX 150 sccoter, because there is only an increase in power and torque at acceleration 3 and 4 which indicates the condition of the engine is already at greater revs.
Proses Pemesinan Pada Track Frame Excavator di PT. Perkasa Heavyndo Engineering Dhafa Nurrahiim; Rizal Hanifi
Jurnal Ilmiah Wahana Pendidikan Vol 9 No 10 (2023): Jurnal Ilmiah Wahana Pendidikan
Publisher : Peneliti.net

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.7984761

Abstract

Currently Indonesia is incessantly in infrastructure development, the use of heavy equipment is certainly very important role in this development. One of the heavy equipment that plays an important role in the construction process is the excavator. Excavator is one type of heavy equipment that has a very important function and role for construction work. In its use, one of the most vital parts in the excavator component is the trackframe, because this section functions as the excavator wheel frame. In this study, the method used was direct observation at the workplace, as well as interacting with workers related to research. In the process of machining the workpiece, several stages are carried out, namely: (1) The process of checking the dimensions of the workpiece by aligning it with what is stated in the technical drawings (2) Qualification of the machine, preparation of tools, and setting up the program on the machine (3) Ensuring the machine operator uses appropriate PPE according to SOP (4) Machining process (5) Process of checking the quality of machining workpieces. And lastly, if everything feels good the overall result then the track frame will be sent back to the client. The machining process carried out on the workpiece consists of milling, drilling and taping, with the machines used are milling machines and drilling machines with a CNC system.
Analisa Kerusakan Cutter Dies 46515-73R10D Material SKD 11 Untuk Proses Produksi Arm Rear Trailling OTR LH Di PT. XYZ Andre Gusti Septiyansah; Reza Setiawan; Rizal Hanifi
Jurnal Mesin Nusantara Vol 7 No 2 (2024): Jurnal Mesin Nusantara
Publisher : Universitas Nusantara PGRI Kediri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29407/jmn.v7i2.22374

Abstract

Faktor yang melatar belakangi terjadinya kerusakan pada dies dipengaruhi oleh gaya dan tegangan yang bekerja, serta struktur dan kekerasan material Dies tersebut. Tujuan penelitian ini adalah untuk mengamati dan menganalisa kerusakan dies yang terjadi agar bisa ditemuka solusinya. Kegiatan penelitian dimulai dengan melakukan pengumpulan data kerusakan dies. Berdasarkan data yang diperoleh dilakukan analisa untuk memastikan penyebab kerusakan, meliputi pengamatan secara visual, analisa struktur mikro, dan analisa prioritas mode kegagalan. Hasil analisa diperoleh bahwa kerusakan dies, disebabkan adanya material las pada dies. Selain gaya dan tegangan serta pembebanan yang berlebih. Awal kerusakan berada pada material dies yang berhubungan langsung dengan beban statis dan terdapat material las di bagian tersebut. Perusahaan sebaiknya membuat jadwal pemeliharaan preventif terhadap dies sehingga dapat dikembangkan data penjadwalan maintenance dilanjutkan dengan menyimpan log  pendataan setiap penggunaan dies dalam proses produksi. Hal itu akan membantu pekerja untuk membuat prediksi dimasa mendatang tentang berapa lama dies tersebut harus berjalan sebelum kembali aktif untuk pemeliharaan selanjutnya.
Pengaruh Variasi Ketebalan Komposit Serat Kelapa terhadap Koefisien Absorpsi Bunyi pada Frekuensi Rendah Raihan Arsy Wildani Hidayat; Rizal Hanifi; Aa Santosa
INSOLOGI: Jurnal Sains dan Teknologi Vol. 4 No. 3 (2025): Juni 2025
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55123/insologi.v4i3.5687

Abstract

This study aims to investigate the effect of coconut fiber composite thickness on the sound absorption coefficient using a two-microphone impedance tube. The composites were fabricated with thickness variations of 1 cm and 2 cm using the hand lay-up method, with polyester resin as the matrix and coconut fiber as the reinforcement. The tests were conducted at frequencies of 400 Hz, 450 Hz, and 500 Hz. Data processing was carried out using LabVIEW and MATLAB software. The results show that the composite with a thickness of 2 cm exhibited a higher sound absorption coefficient compared to the 1 cm thickness across all tested frequencies. The highest sound absorption coefficient was recorded at 0.175 at 400 Hz for the 2 cm thickness. However, the absorption capability significantly decreased at higher frequencies, particularly for the 1 cm thickness, which showed no absorption at 500 Hz. These findings indicate that coconut fiber has potential as an environmentally friendly sound-absorbing material, especially in the low-frequency range.
Analisa Cacat Las GMAW Pada Proses Pabrikasi Bak Dump Truck Menurut AWS D1.1 2015 Dengan Metode Inspeksi Visual di PT Metalindo Teknik Utama Pratama, Dani Nugraha; Rizal Hanifi; Ratna Dewi Anjani
Jurnal Serambi Engineering Vol. 11 No. 1 (2026): Januari 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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

Abstract

The welding quality of dump truck fabrication plays a crucial role in ensuring structural strength and production reliability. The Gas Metal Arc Welding (GMAW) process has the potential to generate welding defects when welding parameters and material preparation are not properly controlled. This study aims to identify welding defects occurring in the fabrication process at PT Metalindo Teknik Utama and to evaluate their acceptance based on the AWS D1.1:2015 criteria through visual inspection. Visual inspection was conducted on several weld joints using a welding gauge and vernier caliper to measure undercut depth, reinforcement height, and surface defects. The results show six types of welding defects, namely undercut, spatter, porosity, pin hole, surface cold lap, and excessive capping. According to AWS D1.1:2015, three defects were classified as rejected (undercut of 1.25 mm, pin hole >3 mm, and 4 mm capping), while spatter, porosity, and surface cold lap were considered accepted. These defects were mainly caused by improper welding parameters, insufficient welding technique control, and inadequate surface preparation. Corrective actions such as grinding, gouging, and re-welding were applied. The results indicate that visual inspection based on AWS D1.1:2015 is effective in evaluating weld quality and supporting improvement in the production process.
Co-Authors Aa Santosa Abdul Said Akhmad Rifqy Rivaldi Andre Gusti Septiyansah Anjani, Ratna Dewi Arrozaqqul Majid Ciptadi Tatag Tur Raharja Deri Teguh Santoso Dhafa Nurrahiim Dhea Nuni Ananda Dian Aditya Permana Dimas Azhar Baihaqi Dimas Bimantoro Fahru Septiyandi Fariz Luthfi Nurulhadi Iman Dirja Indi Albari Irpan Kurniawan Irvan Nurfajri Ismail Ismail Jagad Baroansyah Jemi Haryono Jojo Sumarjo Kardiman Marno Marno Mourad Rif’at Dien Yahya Muhammad Fadli Rahman Muhammad Riziq Mustofa Nanang Burhan Nandang Hisbullah Naubnome, Viktor Oleh , Oleh Oleh Prasojo Yogatama Pratama, Dani Nugraha Raihan Arsy Wildani Hidayat Reza Reza Reza Setiawan Sacarya Linggi Allo Syahdila Darama Yanna Rizky Pratama