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All Journal Turbo : Jurnal Program Studi Teknik Mesin JTAM (Jurnal Teori dan Aplikasi Matematika) SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan International Journal of Aviation Science and Engineering Sinar Sang Surya: Jurnal Pusat Pengabdian kepada Masyarakat Teknika Sains : Jurnal Ilmu Teknik ARMATUR : Artikel Teknik Mesin dan Manufaktur JUSTIMES (Jurnal Rekayasa Teknik Mesin Saburai)
Wahyudi, Tri Cahyo
Universitas Muahmmadiyah Metro
Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Physics Public Health Social Sciences Transportation Other

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Analisa variasi temperatur terhadap nilai kekerasan aluminium pada proses squeeze casting Tri Cahyo Wahyudi; Asroni Asroni
TURBO [Tulisan Riset Berbasis Online] Vol 11 No 2 (2022): TURBO : Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v11i2.2338

Abstract

Aluminum is a non-ferrous metal and has the advantages of light specific gravity, corrosion resistance. Aluminum can also be used in the manufacture of pistons, engine blocks, wheels, drums. Squezze casting is a casting process, where molten metal is poured and pressure is applied until the solidification process is complete. Using hydraulic pressure, this technique is able to improve the physical and mechanical properties, especially on aluminum base material. The research method uses the Squeeze Casting process with temperature variations of 300ºC, 400ºC, 500ºC, the pressure is 60 seconds,the pressure is 5 tons. Pressing time for 75 seconds and Vickers hardness test. The results of the highest hardness value are in specimens with a temperature of 500ºC, namely with a value of 60.2 HVN, and for the lowest hardness value are found in specimens with a temperature of 300ºC with a value of 48.9 HVN. As well as the results of the hardness test another is at a temperature of 400ºC to get a hardness value of 51.1 HVN. Based on the hardness test that has been carried out the most optimal hardness value is on a specimen with a temperature of 500ºC.
Metalurgi serbuk magnesium untuk aplikasi scaffold tulang mampu terdegradasi Sulis Dri Handono; Mafruddin Mafruddin; Tri Cahyo Wahyudi; Ardian Prayoga; Ilyas Shodikin; Arif Ardiyansah
TURBO [Tulisan Riset Berbasis Online] Vol 11 No 2 (2022): TURBO : Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v11i2.2368

Abstract

Healing of bones damaged by accidents or other factors can be done by creating artificial bone structures or bone scaffolds that can initiate the growth of bone tissue and help support bones so they can function. The process of making bone scaffold can be done by powder metallurgy sintering process with magnesium material. The purpose of this study was to determine the effect of variations in sintering temperature and compaction pressure in the magnesium powder metallurgical sintering process on the compressive strength and microstructure applied to degradable bone scaffolds. The research method used is experimental method by making and testing powder metallurgical magnesium material. The powder metallurgy process was carried out with various sintering temperatures of 350°C, 400°C and 450°C and variations of compaction pressure, namely 231 MPa, 309 MPa and 386 MPa. The results showed that variations in sintering temperature and compaction pressure affected the compressive strength and microstructure. The sintering temperature of 450°C and compaction pressure of 386 MPa resulted in the lowest pore percentage rate of 15.14% and the highest compressive strength of 80.26 MPa.
Analisa porositas alumunium alloy terhadap variasi temperatur pada proses squeeze casting semi solid Asroni Asroni; Tri Cahyo Wahyudi; Adek Tri Setiawan
TURBO [Tulisan Riset Berbasis Online] Vol 12 No 1 (2023): TURBO: Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v12i1.2587

Abstract

Direct squeeze casting is a process in which molten metal is cooled by applying pressure directly which aims to prevent gas porosity and shrinkage in a material. This process has the advantage of minimizing the occurrence of gas porosity and shrinkage, so there is no material disposal. The purpose of this study to determine the results of good porosity in aluminum Alloy materials with squeeze casting process. The research method is experimental by designing and making test samples of laboratory scale casting squeeze casting. The test was conducted with a variation of 300oC, 400oC, and 500oC pressure of 176 MPa, long pressing 75 seconds, holding time 9 minutes, the specimen was then tested to determine how the influence of mold temperature variations on the results of porosity and density. From the results of the study it can be concluded that the porosity defects of the casting are influenced by the given temperature variation and constant pressing. Many air cavities are trapped in the object product, the more porosity defects that will affect the resistance of the specimen, because the more the object product is solid or reduced porosity defects, the resistance of the specimen will increase. The smallest or good porosity value is shown by specimens with a temperature variation of 5000C which is 17.96%.
Pengaruh variasi temperatur dan holding time pada proses annealing leaf spring dumb truck bekas terhadap nilai kekerasan Eko Nugroho; Nurlaila Rajabiah; Tri Cahyo Wahyudi; Juda Inai
TURBO [Tulisan Riset Berbasis Online] Vol 12 No 1 (2023): TURBO: Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v12i1.2589

Abstract

Leaf spring is a flat plate component that is clamped together to obtain product efficiency using metal materials, sometimes requiring high hardness and wear resistance. The steel working process is highly dependent on the heat treatment process and the cooling media used to obtain good product quality. The purpose of this study was to determine the effect of variations in temperature and holding time in the process of annealing used leaf springs and trucks on hardness values. This test has been carried out with each variation, namely, temperature 450oC, 550oC, 650oC and held for 30, 60, and 90 minutes as well as the cooling process using air in the heating furnace room. Based on the data obtained, the influence of temperature media and holding time in the Annealing process of used leaf spring dumb trucks has a low hardness value at a temperature of 650°C with a holding time of 30 minutes, 60 minutes and 90 minutes, the lowest hardness value is at 90 minutes, namely 7.7 While the HRC temperature of 550°C and holding time of 90 minutes reaches 26.9HRC, the hardness value is higher and the same as 450°C with holding time of 90 minutes which reaches 30.8HRC. The influence of temperature and holding time on the annealing process of used leaf spring dumb trucks has the lowest hardness value at a temperature of 650°C with a holding time of 90 minutes, namely 7.7 HRC.
ANALISIS KOMPARATIF PROSES PIROLISIS DARI BAHAN SAMPAH PLASTIK DAN BIOMASSA TERHADAP HASIL PRODUK Kemas Ridhuan; Tri cahyo wahyudi; Diego Antonio; Riki Renaldi
TURBO [Tulisan Riset Berbasis Online] Vol 14 No 2 (2025): TURBO: Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v14i2.4890

Abstract

Pyrolysis is a process of heating materials at high temperatures with little or no oxygen to chemically break down materials, to produce products such as fuel and liquid smoke. The purpose of this study was to determine the process, quantity, and characteristics of the products obtained from plastik waste and biomass. This research method uses a barner fueled by LPG gas. Using raw materials of LDPE plastik waste and biomass (rice husk) with a weight of 1.5 kg each. Using a batch type pyrolysis reactor and a straight pipe condenser with a diameter of 1 inch and a length of 4 m. The results showed that the two raw materials produced significantly different product proportions. LDPE pyrolysis produced a liquid product with a volume of 419 (mL) and a solid of 0.825 (kg), and had a higher calorific value of 10648.21 (kJ/kg) than rice husk. Meanwhile, rice husk pyrolysis produced a larger liquid (742 mL) with 0.316 kg of lower solids and a lower calorific value (8761.33 kJ/kg). This difference confirms that the type of feedstock significantly determines the quality and quantity of bio-oil or pyrolysis oil produced, which is crucial for renewable energy development and waste management.
Edukasi Pemanfaatan Sampah Organik Anorganik Melalui Teknologi Pirolisis: Solusi Energi Lingkungan di SMK Raudathul Ulum Kemas Ridhuan; Tri Cahyo Wahyudi; Diego Antonio; Riki Renaldi
SINAR SANG SURYA Vol 9 No 2 (2025): Agustus 2025
Publisher : UM Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/sss.v9i2.4264

Abstract

AbstrakSampah merupakan suatu bahan buangan yang tidak berguna dan sangat mengganggu oleh karena itu harus diatasi. Banyak cara yang dapat dilakukan untuk mengatasinya diantaranya melalui penggunaan teknologi pirolisis. Karena dengan proses pirolisis ini sampahnya akan terurai dengan pemanasan dan hasil luarannya akan mendapatkan suatu bahan bakar, baik padat, cair maupun gas. Sehingganya hal ini akan mendapatkan energi dan dapat mengatasi pencemaran lingkungan. Kegiatan pengabdian kepada masyarakat ini bertujuan untuk sosialisasi dan edukasi pemanfaatan sampah organik dan anorganik (plastik) melalui teknologi pirolisis sebagai solusi energi alternatif dan ramah lingkungan di Sekolah Menengah Kejuruan (SMK) Raudathul Ulum. Sosialisasi ini diharapkan dapat meningkatkan kesadaran siswa dan guru tentang pengelolaan sampah yang berkelanjutan serta memperkenalkan potensi teknologi pirolisis dalam mengubah sampah menjadi produk bernilai ekonomi dan energi. Metode yang digunakan meliputi penyampaian materi, demonstrasi alat, produk yang dihasilkan dan sesi diskusi interaktif tanya jawab. Hasil kegiatan menunjukkan antusiasme yang tinggi dari peserta dan pengetahuan serta pemahaman juga kesadaran yang lebih baik tentang sampah dan dampaknya bagi lingkungan serta potensi pirolisis sebagai solusi pengelolaan sampah di lingkungan sekolah dan masyarakat. Juga mendukung program pemerintah “Indonesia bebas sampah tahun 2025” khususnya sampah plastik.
Co-Authors Abdul Basir Sulaiman Azis Adek Tri Setiawan Adi Satria Aditya Saputra Anggara, Bahtera Antonio, Diego Ardian Prayoga Aria Arnan Meylano Arif Ardiyansah Asroful Abidin Asroni Asroni, Asroni Bahtera Anggara Bahtiar Abdul Rahman Bramestyo, El Alan Danang Sulistiyo Dias Septa Nugroho Diego Antonio Dwi Irawan EKO BUDIYANTO Eko Nugroho Eko Nugroho Eko Nugroho Eko Nugroho Fethma M Nor Haerudin, Muhib Hendi Ahmad Sanjaya Heru Setiawan I Wayan Suarca Ibrahim, Fauzi Ifan Dewangga Ikhsan Afandi Kurniawan Ilyas Shodikin Irfan, Miftahul Irza Sukmana Isnan Rinanda Juda Inai Kemas Ridhuan Kms Ridhuan, Kms Leni Sri Haryani Leni Sriharyani Lukito Dwi Yuono M Farikil Maktum M. Kun Abdur Rohman Mafruddin Mafruddin Mafruddin Mahmud Yunus Muhammad Yunus Nugroho, Dias Septa Nurlaila Rajabiah Rae, Ade Renaldi, Riki Riki Renaldi Riky Andika Noor Efendi Riyanto Setiawan Suharsono Rohyani Rohyani Samsul Hadi Santoso, Sakti Sulis Dri Handono Sulistiyo, Danang Surono, Bambang Sutiase, I Wayan Syahrul Hamid Tarkono Tarkono Thohirin, Muh Thohirin, Muh Thohirin Wardhani Utami Dewi Wisnaningsih, Wisnaningsih Yanuar Burhanuddin Yogi Saputra, Yogi Yongky Eka Prasetiyo Yuwono Yuwono Ziddan Alwi Asy'ari