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All Journal Rotasi Rekayasa Mesin Semesta Teknika Media Mesin: Majalah Teknik Mesin JMPM (Jurnal Material dan Proses Manufaktur) Turbo : Jurnal Program Studi Teknik Mesin INDONESIAN JOURNAL OF APPLIED PHYSICS BERDIKARI : Jurnal Inovasi dan Penerapan Ipteks JMM (Jurnal Masyarakat Mandiri) Journal of Engineering, Technology, and Applied Science (JETAS) Prosiding Seminar Nasional Program Pengabdian Masyarakat Jurnal Polimesin
Budiyantoro, Cahyo
Universitas Muhammadiyah Yogyakarta
Agriculture, Biological Sciences & Forestry Astronomy Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Physics Social Sciences Other

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PENGEMBANGAN MEDIA PEMBELAJARAN BERBASIS YOUTUBE DI PESANTREN ASY-SYIFA MUHAMMADIYAH BANTUL Chusnul Azhar; Cahyo Budiyantoro
Prosiding Seminar Nasional Program Pengabdian Masyarakat 2021: 2. Kreatifitas Pendidikan dan Pembelajaran di Sekolah dan Perguruan Tinggi
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (315.068 KB) | DOI: 10.18196/ppm.42.885

Abstract

Pesantren Asy-Syifa Muhammadiyah Bantul adalah salah satu Amal Usaha Muhammadiyah (AUM) yang dikelola Pimpinan Daerah Muhammadiyah (PDM) Kabupaten Bantul bergerak pada ranah pendidikan mulai dari Madrasah Tsanawiyah (MTs), Madrasah Aliyah (MA), dan Panti Asuhan. Sejak pandemi Covid-19 melanda Indonesia, terhitung mulai awal Maret 2020 seluruh santri Pesantren Asy-Syifa Muhammadiyah Bantul dipulangkan dengan pertimbangan keselamatan jiwa santri dari wabah Covid-19. Keadaan demikian mengharuskan seluruh pembelajaran diselenggarakan secara daring dengan kondisi seadanya bahkan tidak sedikit para guru yang memilih untuk tidak menyelenggarakan pembelajaran daring sama sekali karena belum bisa beradaptasi dengan kebiasan baru. Dalam Program Pengabdian pada Masyarakat ini dilakukan pengembangan media pembejaran daring berbasis Youtube untuk kelancaran proses pembelajaran di Pesantren Asy-Syifa Muhammadiyah Bantul selama pandemi Covid-19. Hasil program pengabdian kepada masyarakat ini adalah terbentuknya tim kreatif pembuatan konten-konten video pembelajaran berbasis Youtube, pembuatan studio mini yang dikhususkan sebagai media pembelajaran daring. Selain itu, diselenggarakan pula berbagai workshop untuk meningkatkan kreativitas para guru dalam membuat media pembelajaran daring berberis Youtube sehingga pembelajaran dapat berlangsung secara efektif dan efisien.
Analisis pengaruh parameter proses terhadap kuat tarik produk 3D Printing dari bahan Polyvinyl Alcohol (PVA) Aris Widyo Nugroho; Dede Tohidin; Cahyo Budiyantoro
TURBO [Tulisan Riset Berbasis Online] Vol 9, No 2 (2020): Jurnal Turbo Desember 2020
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v9i2.1172

Abstract

Polyvinylalcohol (PVA) is a polymer that is often used in 3D printing technology in the  health sector. However, most research addresses the behavior of products interacting with the body, and very rare information discus about the mechanical properties of 3DP products from PVA. This study aims to determine the effect of 3D printing process parameters on PVA materials using the Taguchi method. PVA filament with diameter of 1.75 mm was obtained from ESun Co. Specimen was designed with CAD according to ASTM D-638 Type IV and fabricated using Pursa-I3 3D Printer Machine. The orthogonal arrays L4 (22) experimental  design with two process parameters namely nozzle temperature and extrusion width and two levels for each parameter with tensile strength in response was carried out. The specimen was then measured by weight, dimensions, and time of production. After that the specimens were tested using the Zwick Roell Z020 engine. The data were then analyzed using S/N Ratio and ANOVA. The results showed that all the products meet the dimensions that have been set with the product weight that is not much different (0.03-0.1 gr). S/N Ratio and ANOVA analysis showed the same results that the extrusion width parameter had a greater effect than the temperature of the nozzle on the tensile strength response of the PVA product. The combination of optimal process parameter levels obtained, nozzle temperature of 180 ° C and extrusion width of 0.4 mm produces the highest tensile strength of PVA products (7,611 MPa).Keywords : 3D Printing, PVA, Taguchi, tensile strength.
Pemanfaatan Limbah Kotoran Sapi untuk Produksi Batu Bata Ramah Lingkungan dan Tahan Gempa Sukamta Sukamta; Widyasmoro Widyasmoro; Fitri Wahyuni; Cahyo Budiyantoro; Muhammad Agung As’ari; Tiara Cahya Atikasari; Nurhaliza Agustina; Yudani Alamsyah Harahap
Berdikari: Jurnal Inovasi dan Penerapan Ipteks Vol 8, No 1 (2020): February
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/bdr.8172

Abstract

Cow dung waste at Srunen hamlet, Glagaharjo village, Cangkringan, Sleman is recorded to be high in quantity since it also has a high population of dairy cows. The high volume of cow dung waste leads to environment pollution, either water or air pollution. The environment pollution it causes may further trigger some problems regarding society’s health, safety and comfort. Thereby, the abundant quantity of cow dung waste needs to be well-managed and oriented for economics. One of among other technologies to manage cow dung waste which had never been implemented before is to utilize the waste as the raw material component of brick. Such brick production technology is not only environmentally friendly but is also resistant toward earthquake. This technology was introduced and implemented during the Community Service program at Glagaharjo village. The program was implemented through the methods of assessment and education, as well as feasibility test. Training and practice were conducted to adopt the technology of environmentally friendly and earthquake resistant cow dung brick. Further, the product was tested for its feasibility as construction material. The success of the program is shown from the society’s ability to produce the environmentally friendly and earthquake resistant brick which has also increased society’s income and the hamlet’s economy
PERANCANGAN MESIN VACUUM FORMING UNTUK MATERIAL PLASTIK POLYSTYRENE (PS) DENGAN UKURAN MAKSIMAL CETAKAN 400x300x150 (mm3) Diki Irwansyah; Cahyo Budiyantoro; Sunardi Sunardi
JMPM (Jurnal Material dan Proses Manufaktur) Vol 1, No 2 (2017): Desember
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jmpm.v1i2.3286

Abstract

Tujuan dari Perancangan ini adalah untuk menghasilkan desain mesin Vacuum Forming dengan ukuran maksimal cetakan (Mold) 400 x 300 x 150 (mm3), menggunakan 2 unit heater tipe strip dengan daya 250 watt/unit, dan menggunakan vacuum cleaner untuk proses vakum dengan vacuum (max) : 20 kPa (20.000 Pa) dan Airflow (max) : 26,6 l/s (0,0266 m3/dt) yang akan digunakan sebagai acuan dalam proses pembuatan mesin Vacuum Forming. Salah satu dari metode thermo forming yang sederhana adalah vacuum forming. Pada dasarnya metode ini dilakukan dengan memberikan perlakuan panas pada lembaran plastik hingga lembaran plastik menjadi lunak kemudian dibentuk pada cetakan dengan memberikan tekanan vakum. Ada beberapa parameter yang menentukan kualitas hasil cetakan plastik pada proses vacuum forming antara lain, jenis plastik, ketebalan plastik, temperatur pemanasan dan tekanan vakum yang digunakan. Pada perancanga mesin thermoforming vacuum ini sebagai bahan uji digunakan lembaran plastik polystyrene (PS) dengan panjang 420 (mm), lebar 320 (mm) dengan ketebalan 0,5 sampai 2 (mm). Hasil dari Perancangan ini selanjutnya digunakan sebagai acuan dalam proses pembuatan mesin Vacuum Forming.
KOMPARASI PARAMETER INJEKSI OPTIMUM PADA LDPE RECYCLED DAN VIRGIN MATERIAL Ghanim Raihan; Cahyo Budiyantoro; Harini Sosiati
JMPM (Jurnal Material dan Proses Manufaktur) Vol 1, No 1 (2017): Juni
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jmpm.v1i1.2695

Abstract

Penelitian ini bertujuan untuk membandingkan nilai cacat sink mark produk plastik low density polyethylene (LDPE) murni dengan LDPE daur ulang dengan meningkatkan mutu kualitas menggunakan proses injection molding. Metode design of experiment (DOE) Taguchi digunakan untuk mendapatkan variasi parameter proses paling optimal, parameter proses yang berpengaruh terhadap cacat sink mark adalah injection pressure, melting pressure, holding pressure, dan cooling time. Penelitian ini mendapatkan hasil nilai sink mark near dan far gate pada produk plastik LDPE murni sebesar 0,04 mm dan LDPE daur ulang 0,08 mm.
PELATIHAN AUTODESK MOLDFLOW PLASTIC INSIGHT BAGI DOSEN DAN INSTRUKTUR POLITEKNIK ATMI SURAKARTA Cahyo Budiyantoro; Aris Widyo Nugroho; Fitroh Anugrah Kusuma Yudha
Prosiding Seminar Nasional Program Pengabdian Masyarakat 2022: 2. Kreatifitas Pendidikan dan Pembelajaran di Sekolah dan Perguruan Tinggi
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/ppm.52.1025

Abstract

Pelatihan Autodesk Moldflow Plastic Insight dilaksanakan sebagai upaya peningkatan kompetensi dosen dan instruktor Politeknik ATMI Surakarta terkait dengan desain dan proses injection molding. Program pelatihan dirancang dalam durasi 40 jam tatap muka intensif dimana pembimbing dan peserta berinteraksi langsung dalam pemecahan contoh-contoh masalah. Materi pelatihan ini merupakan kompetensi yang diajarkan kepada mahasiswa Politeknik ATMI Surakarta. Materi pelatihan meliputi teori tentang proses injection molding, interface dan fungsi software, simulasi dasar dan simulasi advance, runner balance, serat design of experiment. Pada pelatihan ini, dosen dan intsruktor memiliki pemahaman dan ketrampilan yang standard dalam memecahkan kasus desain dan optimasi proses injection molding. Kemampuan simulasi moldflow bermanfaat untuk penetapan dimensi rancangan dan paramater proses produksi yang optimal untuk plastic molding. Melalui kemampuan simulasi, optimasi proses dapat dicapai dan penurunan tingkat kesalahan pada tahap pengembangan produk dapat dilakukan, dengan imbas positip berupa reduksi biaya.
DESAIN DAN MANUFAKTUR PENGOLAH SAMPAH PLASTIK UNTUK PASAR DESA DARMAYASA JAWA TENGAH Cahyo Budiyantoro; Tri Wahyono; Sunardi Sunardi
JMM (Jurnal Masyarakat Mandiri) Vol 7, No 3 (2023): Juni
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jmm.v7i3.14838

Abstract

Abstrak: Desa Darmayasa merencanakan pembangunan pasar desa. Selain segi kemanfaatannya, pasar juga memberikan potensi permasalahan yaitu timbulnya sampah, terutama sampah plastik yang tidak dapat diurai ditanah. Tim Pengabdian Masyarakat UMY melakukan pemetaan kebutuhan teknologi pengolahan sampah plastic kemudian melakukan perancangan dan pembuatan peralatan pengolah sampah plastik, baik yang dihasilkan oleh pasar maupun dari buangan rumah tangga. Tujuan kegiatan adalah untuk merancang dan membuat peralatan pengolah sampah plastik untuk mengurangi dampaknya pada kondisi lingkungan dan juga meningkatkan kesejahteraan masyarakat di Desa Darmayasa.Abstract: The village of Darmayasa is planning to build a village market. Besides its benefits, the market also has the potential for issues, such as the generation of waste, especially plastic waste that cannot decompose on the ground. The Community Service Team from UMY mapped the technology needs for plastic waste processing, then designed and made equipment to process plastic waste from the market and household waste. The goal of this activity is to design and make plastic waste processing equipment to reduce its impact on the environment and also improve the welfare of the community in Darmayasa village.
Pengaruh Parameter Proses Thermoforming Terhadap Distribusi Ketebalan dan Akurasi Dimensi Produk Cahyo Budiyantoro; Perwita Kurniawan
JMPM (Jurnal Material dan Proses Manufaktur) Vol 7, No 1 (2023): Juni
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jmpm.v7i1.18717

Abstract

Penelitian ini melihat pengaruh parameter-proses thermoforming, yaitu waktu pemanasan, pre-stretching degree, dan tingkat evakuasi vakum, terhadap distribusi ketebalan dinding dan akurasi dimensi produk plastik yang diproses dengan thermoforming. Penelitian dilakukan serangkaian percobaan dengan tiga variasi parameter-proses tersebut.   Waktu pemanasan divariasikan masing-masing 30, 35 dan 40 detik, pre-stretching degree dari 0,1 hingga 0,3, dan evacuation rate dalam nilai 6 mm/detik, 8 mm/detik dan 10 mm/detik. Hasil penelitian menunjukkan bahwa parameter yang mampu meminimalkan radius pada sudut specimen adalah: tingkat evakuasi 10 mm/detik, waktu pemanasan 40 detik dan derajad pre-stretching 0,1 Vst.   Hasil produk vacuum forming dapat dioptimalkan dengan kombinasi tingkat evakuasi vakum yang tinggi, waktu pemanasan lebih lama dan derajad pre-stretching rendah. This study examines the influence of thermoforming process parameters, namely heating time, pre-stretching degree, and vacuum evacuation rate, on the distribution of wall thickness and dimensional accuracy of the product. The research involved a series of experiments with three variations of these process parameters. Heating time was varied at 30, 35, and 40 seconds, pre-stretching degree ranged from 0.1 to 0.3, and evacuation rates were set at 6 mm/s, 8 mm/s, and 10 mm/s, respectively. The results showed that the parameters capable of minimizing the radius at the specimen's corners were a vacuum evacuation rate of 10 mm/s, a heating time of 40 seconds, and a pre-stretching degree of 0.1 Vst. The findings suggest that the vacuum forming products can be optimized by combining a high vacuum evacuation rate, longer heating time, and low pre-stretching degree.
The influence of the number of recycling cycles on the thermal and physical properties of polypropylene Cahyo Budiyantoro; Harini Sosiati; J. Wawan Joharwan
Jurnal POLIMESIN Vol 21, No 4 (2023): August
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v21i4.3976

Abstract

Plastic recycling has become one of the approaches used to reduce environmental pollution caused by plastic waste. This study explores the influence of the number of recycling cycles on the physical and thermal properties of polypropylene (PP) plastic, which is commonly found in plastic waste. Test samples were prepared by melting waste PP in various melting cycles, including 1, 3, 5, and 10 times. The thermal and physical properties of the test samples were observed using Differential Scanning Calorimetry and its viscosity, while its microstructure was observed using a Scanning Electron Microscope. The results showed that the higher the number of recycling cycles, the lower the melting temperature (Tm) and glass transition temperature (Tg) of the PP samples. This indicates a decrease in the crystallinity properties of PP as the number of recycling cycles increases. Additionally, the flowability of PP increases with an increase in the number of recycling cycles, which can be attributed to changes in the material's structure and physical properties. The results of this study can help PP manufacturers and users optimize the recycling process and improve the quality of the resulting products. Moreover, this study also contributes positively to energy and material resource conservation as well as reducing production costs.
MOLD DESIGN AND FLOW ANALYSIS FOR PRODUCT PROPELLER APC SF 11X4.7 WITH MINIMUM SHRINKAGE AND WARPAGE Sahputra, Wahyu Puji; Budiyantoro, Cahyo; Nugroho, Gesang; Adam, Muhammad Kevin
Jurnal Rekayasa Mesin Vol. 15 No. 2 (2024)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v15i2.1669

Abstract

Making molds in the injection molding manufacturing process is one of the basic steps that functions to prevent product defects during the production process. The product defects that most often occur in this manufacturing process include shrinkage and warpage defects. This research will discuss the mold design for the APC SF 11x4.7 propeller product with a twist variation of 45o and minimum shrinkage and warpage values. Glass Fiber Reinforced Polypropylene (GFRPP) will be used as the propeller product material. The entire design process to testing will be carried out using software assistance. The Taguchi method with an L9 orthogonal array matrix (34) was used in this research. where L9 explains that the experiment will be carried out nine times, and 34 means there are three levels and four main factors. The four main factors consist of packing pressure, packing time, melting temperature and injection pressure. The Taguchi method is used with the aim of making it easier to find the variation value that produces the lowest shrinkage and warping defects in the product. The simulation results show that the variation with the smallest shrinkage value produces a value of 7.9% and the variation with the smallest warpage value produces a value of 1.051 mm
Co-Authors Adam, Muhammad Kevin Adi Nugroho Agustina, Nurhaliza Ali Khaerul Mufid Anggariawan, Arista Anggariawan, Arista Anwar, M. Choirul Aris Widyo Nugroho As’ari, Muhammad Agung Atikasari, Tiara Cahya Attoriq, Fajri Bayu Prabandono Bilyferdin, Bastian Cahyo Trisedyo Utomo Chusnul Azhar Dede Tohidin Diki Irwansyah Dwi Saputra, Muhammad Rifai Dwi Saputra, Muhammad Rifai Eduar Iqbal Riza Fawwas Ghazy, Muhammad Ikbar Ferriawan Yudhanto, Ferriawan Fitri Wahyuni Fitri Wahyuni Fitroh Anugrah Kusuma Yudha Gesang Nugroho Ghanim Raihan Ghozali, Mohamad Yuzdhie Ghozali Ghozali, Mohamad Yuzdhie Ghozali Harahap, Yudani Alamsyah Herda Agus Pamasaria Hidayat, Muhammad Firdaus Hutama, Adhi Setya Hutama, Adhi Setya Ikhsan, Subkhan Nur Irawan, Fabio Dwi Bagus Irawan, Fabio Dwi Bagus Irmawan, wiwin Irwansyah, Diki Iwan Setiono J. Wawan Joharwan khadliq, muhammad M. Choirul Anwar M. Puji Ibnu Mimbar Maulana Maemunah Maemunah Maulana, M. Puji Ibnu Mimbar Mufid, Ali Khaerul Muhammad Agung As’ari Muhammad Budi Nur Rahman Muhammad Budi Nur Rahman Muhammad Budi Nur Rahman, Muhammad Budi muhammad khadliq Ni'am, Lutfi Khoirul Miftakhul Nurhadi, Taufik Nurhaliza Agustina Pamasaria, Herda Agus Permana, Cepi Rahmatullah Permana, Cepi Rahmatullah Perwita Kurniawan Pradana, Benanta Ogi Rahman, Muhammad Budi Nur Raihan, Ghanim Riza, Eduar Iqbal Sahputra, Wahyu Puji Sosiati, Harini Subkhan Nur Ikhsan Sukamta Sukamta Sukamta Sukamta Sunardi Sunardi Sunardi, Sunardi Syahputra, Kevin Atila Taufik Nurhadi TH Adi Nugroho Thoharudin Thoharudin Thoharudin, Thoharudin Tiara Cahya Atikasari Totok Suwanda Tri Hannanto Saputra Tri Wahyono Widyasmoro, Widyasmoro wiwin Irmawan Yudani Alamsyah Harahap