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Effect of Moisture Content of Green Sand on The Casting Defects Nanang Qosim; AM Mufarrih; Ali Sai’in; A. Hanif Firdaus; Fina Andika F. A.; Ratna Monasari; Zakki F. Emzain
Journal of Applied Engineering and Technological Science (JAETS) Vol. 2 No. 1 (2020): Journal of Applied Engineering and Technological Science (JAETS)
Publisher : Yayasan Riset dan Pengembangan Intelektual (YRPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1469.666 KB) | DOI: 10.37385/jaets.v2i1.77

Abstract

In this study, three percentages of moisture content on the green sand were benchmarked to be observed their effects on the casting defects. The metal used is scrap Al-Si with wt% of Al 59.7. The metal was melted in a furnace at 550 ºC then poured into sand molds and cooled for 24 hours before it can be removed, cleaned, and finished. There were prepared three specimens for each benchmark. Qualitative observation of defects was done by physical observations on the surface of the specimens. The observations show that on the moisture content of 2.5%, there is a defect in the form of porosity. Defects in the form of drops, misruns, blowholes, and shrinkage cavity are found on the benchmark 3.5%. The most severe defects are found on the benchmark 4.5% in the form of buckles and severe shrinkage cavities that are found in almost all specimens.
Finite Element Analysis of Miniplate for Post-Fracture Finger Rehabilitation Device Nanang Qosim; Ratna Monasari; Zakki F. Emzain; Lutfi Hakim; Ali Sai’in
Journal of Applied Engineering and Technological Science (JAETS) Vol. 2 No. 1 (2020): Journal of Applied Engineering and Technological Science (JAETS)
Publisher : Yayasan Riset dan Pengembangan Intelektual (YRPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (560.062 KB) | DOI: 10.37385/jaets.v2i1.160

Abstract

Miniplate plays an important role as one of the implant components used as a rehabilitation device for a post-fracture finger. In this study, an analysis was carried out to determine the strength of the miniplate design made from Ti-6Al-4V titanium alloy material. Simulation and analysis were carried out using the finite element method. The given input for modeling tensile and bending loads determined von Mises stress, kinetic energy, strain energy, and internal energy. The analysis showed that uneven von Mises stress and strain distribution have occurred. The critical concentration of stresses was located at the center of the miniplate and these values were a lot lower than the yield stress of Ti-6Al-4V.
Number of Machine and Material Requirements for Production Planning of Tablet Tooling with the Demand of 200 Units/Day Nanang Qosim; Andre Kurniawan; Moh. Nasir Hariyanto; Zakki F. Emzain; Moh. Hartono; AM Mufarrih
Journal of Applied Engineering and Technological Science (JAETS) Vol. 2 No. 2 (2021): Journal of Applied Engineering and Technological Science (JAETS)
Publisher : Yayasan Riset dan Pengembangan Intelektual (YRPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (407.845 KB) | DOI: 10.37385/jaets.v2i2.209

Abstract

Shaping and marketing a product in tablet form is an easy and economical alternative to product shaping. Products in tablet form now cover almost all fields, so that the demand for tablet tooling of various sizes and variations continues to increase. As an effort to support the effectiveness and proper industrial planning, it is necessary to carry out an analysis of the machine and material requirements to produce tablet tooling which is the aim of this study. To achieve these objectives, the methods used in this study include product design, operation plan analysis, and calculation of material requirements and number of machines. The result shows that the number of machine requirements to manufacture the die and punch of tablet tooling with the demand of 200 unit/day are two units of power hacksaw, five units of lathe machine, and a unit of milling machine. On the other hand, the material requirements needed in one day are 22.24 m (Ø45 mm x 5 bars) and 12.79 m (Ø18 mm x 3 bars).
Finite Element Analysis of SS316L-Based Five-Hole Plate Implant For Fibula Reconstruction Nanang Qosim; Zakki Fuadi Emzain; AM. Mufarrih; Ratna Monasari; Fataa Kusumattaqiin; Rangga E. Santoso
Journal of Applied Engineering and Technological Science (JAETS) Vol. 4 No. 1 (2022): Journal of Applied Engineering and Technological Science (JAETS)
Publisher : Yayasan Riset dan Pengembangan Intelektual (YRPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (611.906 KB) | DOI: 10.37385/jaets.v4i1.533

Abstract

This study analyzed the design performance of SS316L-based plate implant for fibula restoration using a Finite Element Analysis approach. The simulated model design has dimensions of 35 x 5 x 1.5 mm and five holes with 2-3 configuration. The results of the bending test simulation showed that the values for both displacement and Von Mises stress that occurred (0.008 mm and 116 MPa of each) were still considerably below the yield stress of the SS316L material. The same results were also shown in the tensile test simulation, although the clamping setting on the plate was changed on the other side. From this finite element analysis approach, the SS316L-based five-hole plate implant design has a fairly good strength performance as a fibular bone-implant restoration product.
Peningkatan Kualitas Pembelajaran melalui Media Pembelajaran LCD Proyektor bagi Guru dan Siswa KB Bina Cendikia Desa Sidorejo Kecamatan Jabung Kabupaten Malang Muhammad Akhlis Rizza; Zakki Fuadi Emzain; Ratna Monasari; Etik Puspitasari
Prima Abdika : Jurnal Pengabdian Masyarakat Vol. 2 No. 3 (2022): Volume 2 Nomor 3 Tahun 2022
Publisher : Program Studi Pendidikan Guru Sekolah Dasar Universitas Flores Ende

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37478/abdika.v2i3.2075

Abstract

The use of technology continues to penetrate various aspects of life, one of which is the utilization of technology in the field of education at the Playgroup Level (KB). At KB Bina Cendikia in Jabung Subdistrict, Malang has not used technology for learning media such as LCD projectors; therefore, there is necessary to teach media by utilizing this technology to increase learning activities. This community service activity (PPM) aims to provide learning media in the form of an LCD projector and its equipment and to train KB Bina Cendikia teachers to operate and maintain it. The PPM activities stages include surveys, coordination, procurement, socialization, and handovers. The results of the PPM activity showed that the thematic learning process at KB Bina Cendikia using LCD projector media could make students happier. It demonstrated the students' enthusiasm for participating in the lessons, and there was also an increase in learning activities. KB teacher Bina Cendikia also responded positively to using LCD projectors in thematic learning.
Peningkatan Kualitas Kemasan Produk menggunakan Mesin Pres Segel Plastik Otomatis di Komunitas UMKM Shingkara Kecamatan Singosari Kabupaten Malang Zakki Fuadi Emzain; Nanang Qosim; Ahmad Hanif Firdaus; Lisa Agustriyana; Muhammad Akhlis Rizza
Prima Abdika : Jurnal Pengabdian Masyarakat Vol. 2 No. 4 (2022): Volume 2 Nomor 4 Tahun 2022
Publisher : Program Studi Pendidikan Guru Sekolah Dasar Universitas Flores Ende

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37478/abdika.v2i4.2161

Abstract

Micro, Small, and Medium Enterprises (UMKM) are one of the driving forces of the economy in a local area as well as a booster for the community's welfare. One of the obstacles often faced by the Shingkara UMKM community in Singosari District, Malang Regency is the lack of quality product packaging that still uses manual tools and is not optimal in creating marketing content. This community service aims to provide automatic plastic seal press machines and training on marketing content creation for micro-business actors in the Shingkara UMKM community so that it is expected to increase partners' competitiveness. The stages of community service were observation and coordination, providing machines, handing over machines, holding training, and evaluation. The results of the community service activities showed that the training participants were enthusiastic and actively participated during the training. The quality of product packaging after using a plastic seal press machine has also improved, evidenced by a tighter and well-protected packaging seal. The copywriting training has also broadened the participants' knowledge about strategies for creating product marketing content by utilizing applications available on Android.
Finite Element Analysis and Fabrication of Voronoi Perforated Wrist Hand Orthosis Based on Reverse Engineering Modelling Method Zakki Fuadi Emzain; Nanang Qosim; AM. Mufarrih; Syamsul Hadi
Journal of Applied Engineering and Technological Science (JAETS) Vol. 4 No. 1 (2022): Journal of Applied Engineering and Technological Science (JAETS)
Publisher : Yayasan Riset dan Pengembangan Intelektual (YRPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37385/jaets.v4i1.1199

Abstract

Other than surgery, post-stroke spasticity, fractures due to accidents, sports injuries, and musculoskeletal disorders due to office work on the wrist can be treated using a wrist-hand orthosis. The customized conventional methods usually have some drawbacks, which are more expensive, take a long time to manufacture, and require expert skills from medical therapists. The presence of reverse engineering (RE) technology can be applied in the medical field, such as the manufacture of prosthetic or orthosis devices. This study aims to develop a reverse engineering-based wrist-hand orthosis design, analyze it using the finite element method, and fabricate it. Research methods included 3D scanning, CAD modelling, model analysis, 3D printing, and postprocessing. The model material used was PLA with variations in the thickness of 5 mm, 5.5 mm, and 6 mm, and the load values range from 0 N to 30 N. The results of the equivalent stress analysis showed that the 5 mm thickness model could withstand a load of 30 N with a maximum equivalent stress of 23.46 MPa. With a safety factor value of 2.56, it was still relatively safe, and a critical area was at the back end of the model's palm between the thumb and index finger. The equivalent elastic strain and deformation results also had the same graphic trend with the maximum values for the same model, which were 0.0076 mm and 0.614 mm, respectively. The 3D printing FDM result showed that the Voronoi perforated wrist-hand orthosis prototype was sturdy, fit, and comfortable. It is expected to hold muscle tone and immobilize for hand rehabilitation.
IMPLEMENTASI MESIN PENCAMPUR BUMBU OTOMATIS UNTUK MENINGKATKAN EFISIENSI PROSES PRODUKSI UMKM ANUGERAH ABADI Zakki Fuadi Emzain; AM. Mufarrih; Nanang Qosim; Sarjiyana Sarjiyana; Lisa Agustriyana; Sudarmadji Sudarmadji
JMM (Jurnal Masyarakat Mandiri) Vol 7, No 5 (2023): Oktober
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jmm.v7i5.16535

Abstract

Abstrak: UMKM Anugerah Abadi yang memproduksi bumbu marinasi mengalami kendala dalam proses produksinya dimana keterbatasan alat yang digunakan masih manual dan SDM yang masih dilakukan oleh anggota keluarga saja. Disisi lain sudah mulai banyak pemesanan produknya dari luar kota. Program Pengabdian Pada Masyarakat (PPM) mempunyai tujuan untuk melakukan efisiensi proses produksi dengan penerapan teknologi mesin pencampur bumbu otomatis pada UMKM Anugerah Abadi. Metode yang digunakan yaitu dengan substitusi iptek teknologi tepat guna dengan lima tahapan meliputi observasi, pembuatan mesin, penyerahan mesin, training pengoperasian mesin, dan evaluasi. Mitra dalam kegiatan pengabdian ini adalah UMKM Anugerah Abadi dengan melibatkan lima karyawan atau anggota keluarganya. Hasil PPM ini menunjukkan adanya peningkatan kuantitas produksi sebesar 333% yaitu menjadi 20 kg per jam dari awalnya 6 kg per jam dan kualitas produk campuran bumbu menjadi lebih merata karena adanya internal tip fin dalam tabung mesin. Serta mitra telah mendapatkan pengetahuan cara mengoperasikan dan merawat mesin beserta manual booknya.Abstract: UMKM Anugerah Abadi, which produces marinade seasoning, experiences problems in its production process where the limitations of the tools used are still manual and human resources are still only carried out by family members. On the other hand, there are many orders for their products outside the city. This Community Service Activity (PPM) aims to increase the efficiency of the production process by applying automatic seasoning mixing machine technology to Anugerah Abadi UMKM. The method used was technology and science substitution with five stages: observation, machine manufacture, machine handover, machine operation training, and evaluation. Partners in this service activity were UMKM Anugerah Abadi involving five of their staff or family members. The results of this PPM activity showed an increase in production quantity by 333%, namely to 20 kg per hour from the initial 6 kg per hour, and the quality of the mixed seasoning product became good due to the internal tip fins in the machine tube. As well as the partners have gained knowledge on how to operate and maintain the machine along with the manual book.
PENERAPAN MESIN PENIRIS MINYAK UNTUK MENINGKATKAN KUALITAS KERIPIK UMKM WONOSARI MALANG AM Mufarrih; Zakki Fuadi Emzain; Nanang Qosim; Ratna Monasari; Agus Harijono; Pipit Wahyu Nugroho
Community Development Journal : Jurnal Pengabdian Masyarakat Vol. 4 No. 4 (2023): Volume 4 Nomor 4 Tahun 2023
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/cdj.v4i4.18765

Abstract

Makanan ringan dari bahan pisang, umbi, kentang dan tepung senantiasa digemari oleh Masyarakat Indonesia. UMKM Fany merupakan usaha kecil di Kabupaten Malang yang memproduksi keripik. Proses produksi keripik yang dilakukannya memiliki beberapa masalah, salah satunya adalah tingkat minyak yang tinggi pada keripik pisang. Kadar minyak yang tinggi menyebabkan keripik menjadi lembek, berminyak, tidak crunchy, dan kurang tahan lama. Tujuan dari kegiatan pengabdian masyarakat ini adalah untuk mengatasi kesulitan yang dihadapi mitra selama proses produksi keripik dengan memanfaatkan teknologi tepat guna, seperti mesin peniris minyak. Metode yang digunakan berupa survey dan wawancara kepada pemilik UMKM Fany yang memproduksi produk keripik, lalu pembuatan alat dan terakhir pelatihan serta serah terima alat. Hasil dari kegiatan pengabdian ini adalah usaha bapak Sodiq telah meningkat kualitas dan kuantitas produk olahan keripik pisangnya. Mitra mampu mengoperasikan mesin peniris minyak serta memahami cara perawatan mesin dengan benar.
Optimization of Savonius Turbine Towards Different Inner Blade Positions to Improve Turbine Performance Yusuf Dewantoro Herlambang; Supriyo Supriyo; Budhi Prasetiyo; Abdul Syukur Alfauzi; Marliyati Marliyati; Wawan Purwanto; Fatahul Arifin; Zakki Fuadi Emzain
Jurnal POLIMESIN Vol 21, No 1 (2023): February
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v21i1.3248

Abstract

The purpose of this study is to examine the performance of the Savonius turbine on the inner blade position in order to improve turbine efficiency. The blades used are a simplification of the Savonius U/L and the Savonius 1:2 double blade model. This research begins by creating four blade models: a single-blade model, a double-blade model at the blade's tip, a double-blade model at the blade's base, a single-blade model, and a double-blade model along the blades against the wind. The four models are then fitted in the test system for generator performance. Next, the efficiency characteristics of the turbine will be tested against rotation. The test results of the four models were evaluated by comparing each model's efficiency. The results indicate that the Savonius double-blade 1:2 and Savonius U/L turbines achieve efficiencies of 2.42% and 2.1% at 5 m/s and 7 m/s, respectively. At speeds of 5 m/s and 7 m/s, the double-tip position inner blade model increased by 81% and 61%, respectively. The double-tip inner blade variant has the maximum efficiency at 9 m/s, at 3.71 percent. Therefore, the Savonius U/L type vertical axis wind turbine with a 1:2 double blade is the most suited blade model for usage at wind speeds less than 7 meters per second. While the Savonius model with innovations in the inner blade double tip position is suitable for operation at wind speeds greater than 9 meters per second, the Savonius model without such advances is not