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All Journal SPEKTRUM INDUSTRI Rekayasa Mesin SITEKIN: Jurnal Sains, Teknologi dan Industri Semesta Teknika Media Mesin: Majalah Teknik Mesin JMPM (Jurnal Material dan Proses Manufaktur) Journal of Energy, Mechanical, Material and Manufacturing Engineering Adimas : Jurnal Pengabdian Kepada Masyarakat Jurnal Abdimas PHB : Jurnal Pengabdian Masyarakat Progresif Humanis Brainstorming Amalee: Indonesian Journal of Community Research & Engagement Journal of Welding Technology Jurnal Abdimas Bina Bangsa Prosiding Seminar Nasional Program Pengabdian Masyarakat Jurnal Farmasi Sains dan Praktis Ekalaya: Jurnal Pengabdian Kepada Masyarakat Indonesia Jurnal Pengabdian Pada Masyarakat Jurnal Polimesin Jurnal Studi Pemerintahan
Totok Suwanda
Universitas Muhammadiyah Yogyakarta
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PENGARUH VARIASI KECEPATAN PUTAR DAN DIAMETER PIN TOOLS TERHADAP KUAT GESER DAN STRUKTUR MAKRO SAMBUNGAN FRICTION STIR WELDING DISSIMILAR HIGH DENSITY POLYETHYLENE-POLYPROPYLENE Suwanda, Totok; Ardiyansyah, Nur
Jurnal Rekayasa Mesin Vol. 14 No. 3 (2023)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v14i3.1376

Abstract

The purpose of this study is to find out the effect of pin tool turn speed and pin tool diameter on strong shear and macro structure on the friction stir welding dissimilar high-density polyethylene and polypropylene sheets. Variations in welding process parameters used in this study were: rotary speed of 980, 1560, 2360 rpm, and pin tool diameter of 4 and 5 mm. The shape of the cylinder pin, the feeding speed of 11 mm/min, and the plunge depth of 7.8 mm were maintained constant. The results showed that the highest shear strength value was obtained on the connection with a rotary speed of 1560 rpm and a pin tool diameter of 5 mm 4.8 N / mm2 or 23.71% of the tensile strength of raw material high density polyethylene. Observations of macro structures show that the pin tool diameter 5 mm has only slight defects in the stir zone.
Pemberdayaan Kelompok Wanita Tani dengan Produktivitas dan Peluang Usaha melalui Pelatihan Abon Lele di Kabupaten Sleman Prasetyo, Satria Iman; Nugroho, Aris Widyo
Amalee: Indonesian Journal of Community Research and Engagement Vol 3 No 2 (2022): Amalee: Indonesian Journal of Community Research and Engagement
Publisher : LP2M INSURI Ponorogo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37680/amalee.v3i2.1322

Abstract

Abstract: This empowerment program aims to increase productivity and open business opportunities for the Women Farmers Group (KWT) through training in processing catfish floss in Padukuhan Soromintan. KWT problems, such as the lack of processed agricultural products and difficulties in marketing their harvests, have caused the low productivity of the KWT Mugi Lancar to be the reason for the intense business productivity. Based on this, this empowerment conceptualizes the program as a follow-up to solving the problems faced by KWT Mugi Lancar through training in processing catfish floss. The implementation method has five stages: problem identification, conceptualization, success indicators, validation, and application. The results of the implementation of community empowerment show that the catfish floss processing training is divided into two types of exercise, namely theory and practice, which includes training on catfish floss processing, packaging, and legality submissions to marketing. The result shows a level of understanding of the catfish-shredded training participants. This is expected to increase the motivation of KWT Mugi Lancar to carry out business productivity through processing catfish floss. Abstrak: Pengabdian masyarakat ini bertujuan untuk meningkatkan produktivitas dan membuka peluang usaha Kelompok Wanita Tani (KWT) melalui pelatihan pengolahan abon lele di Padukuhan Soromintan. Minimnya olahan hasil pertanian dan kesulitan dalam memasarkan hasil panen menyebabkan rendahnya produktivitas usaha KWT Mugi Lancar. Berdasarkan hal tersebut pemberdayaan ini mengkonseptualisasikan program sebagai tindak lanjut untuk menyelesaikan permasalahan yang dihadapi oleh KWT Mugi Lancar melalui pelatihan pengolahan abon lele. Metode pelaksanaan dilakukan melalui lima tahapan di antaranya identifikasi masalah, konseptualisasi, indikator keberhasilan, validasi, dan aplikasi. Hasil akhir menunjukkan peningkatan motivasi KWT Mugi Lancar dalam produktivitas usaha melalui pengolahan abon lele.
Optimized Pond Structure for Catfish Farming as a Permanent Revenue Source of Ahmad Dahlan Muhammadiyah Reformatory Sudarisman, S.; Suwanda, Totok
Jurnal Pengabdian Masyarakat Progresif Humanis Brainstorming Vol 6, No 4 (2023): Jurnal Abdimas PHB : Jurnal Pengabdian Masyarakat Progresif Humanis Brainstormin
Publisher : Politeknik Harapan Bersama

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30591/japhb.v6i4.5317

Abstract

This community service activity was conducted in accordance with the problems faced by the reformatory, i.e. lack of revenue source to fund its regular activities, and aims to providing catfish farming ponds which can be used for life skill training medium for reformatory students and a permanent source of income for the reformatory. Having had this ponds the reformatory has an additional permanent revenue source, in addition, the ponds was constructed by optimizing the potential mechanical properties of the material being used. The methods used include object observation, interviews with reformatory management, technical guidance, and catfish farming practices. The result of this activity is the availability of three tarpaulin catfish ponds measuring 3 ´ 2 m2 each which can be used by the reformatory students as a medium for life skills training. The time for putting baby fish into the three ponds was scheduled in different times so that the harvest time would also be different such that market oversupply can be avoided. During the farming period, the reformatory students were very enthusiastic in feeding and monitoring the condition of the pond water and the growth of the catfish, so that catfish farming could run as expected. The first harvest was partly consumed and the other was sold to the local market.
UPAYA MENINGKATKAN PENGUNJUNG WEBSITE KELOMPOK PEMUDA RW 049 POGUNG KIDUL DENGAN CROSS-PLATFORM Krisdiyanto, Krisdiyanto; Nugroho, Aris Widyo; Azhar, Chusnul; Adi, Rahmad Kuncoro; Nugroho, Ahmad Restian Adi
ADIMAS Jurnal Pengabdian Kepada Masyarakat Vol 6, No 1 (2022): Maret
Publisher : Universitas Muhammadiyah Ponorogo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24269/adi.v6i1.4004

Abstract

Pedukuhan Pogung Kidul RW 094 terletak di daerah Sinduadi Mlati Sleman. Pedukuhan tersebut berdampingan dengan sebuah kampus. Penduduk di daerah tersebut menjual produk kepada mahasiswa yang tinggal sementara di daerah tersebut dengan website yang dikelola oleh kelompok pemuda daerah tersebut. Masalah yang terjadi pada mitra yaitu website tersebut dirasa kurang maksimal karena jumlah pengunjung dan tampilan masih relatif sedikit. Untuk menambah jumlah pengunjung dan tampilan pada website tersebut pihak pengabdi memberikan solusi dengan metode cross-platform yaitu membuat aplikasi smartphone yang bisa digunakan untuk membantu masyarakat mengakses website yang dikelola kelompok pemuda tersebut. Hasil dari kegiatan pembuatan aplikasi smartphone tersebut yaitu dengan adanya peningkatan jumlah pengunjung dan tampilan website. Peningkatan jumlah pengunjung dan tampilan website tersebut relatif besar yaitu 455,5% dan 376,3%. Hal tersebut terjadi setelah ada ceremony peluncuran aplikasi smartphone yang bisa digunakan untuk mengakses website tersebut.
The Effect of Rotational Tool Speed on Dissimilar Joint Aluminum-Copper Plate Friction Stir Welded Joint Nugroho, Aris Widyo; Rahman, Khukuh Aulia; Rahman, Muhammad Budi Nur
Semesta Teknika Vol 26, No 2 (2023): NOVEMBER
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/st.v26i2.20477

Abstract

The study investigates the impact of rotational tool speed on the mechanical properties and microstructure of aluminum-cooper friction stir-welded joints. It found that higher rotational speed leads to increased grain size, possibly due to increased heat production. Higher hardness values in the stir zone result from uniform dispersion of smaller copper particles. The study found that 540 rpm yields the maximum hardness value in the stir zone, measuring 67 VHN. However, higher speed results in defects like voids, cracks, and intermetallic compounds (IMCs), which are linked to the formation of IMCs at elevated temperatures. The optimal welding conditions at 550 rpm balance grain refinement, hardness enhancement, and defect mitigation, contributing to the understanding of welding process parameters.
Effect of Friction Pressure on the Mechanical Properties of CDFW Dissimilar Aluminium 6061-T6 and Stainless steel 304 Welding Joints Suwanda, Totok; Yulianto, Tri; Nugroho, Aris Widyo; Ardiyansyah, Nur
Semesta Teknika Vol 27, No 1 (2024): MEI
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/st.v27i1.18534

Abstract

Welding technology has significantly developed in the industrial sector along with advances in manufacturing technology. The demand for joining methods combining dissimilar metals is increasing in the industrial sector. However, joining dissimilar metals is challenging because of differences in physical and mechanical properties. Continuous drive friction welding is a solid-state joining method widely used to join dissimilar metals. The research aimed to determine the effect of variations in friction pressure on the mechanical properties of continuous drive friction welding joints with dissimilar materials, Aluminum 6061 T6 and Stainless Steel 304. The process parameters used in this welding were the friction pressures used were 30 MPa, 35 MPa, and 45 MPa. The friction time is 2 seconds, the rotation speed is 1000 rpm, and the upset pressure is 50 MPa. Then, welded joints were evaluated for Vickers microhardness and microstructure observations. Based on the research results, it shows that the temperature distribution and microstructure results show that there is a change in the hardness value of the aluminum material. In contrast, the 304 stainless steel material experiences an insignificant change in the hardness value.
Effect of Friction Pressure on the Mechanical Properties of CDFW Dissimilar Aluminium 6061-T6 and Stainless steel 304 Welding Joints Suwanda, Totok; Yulianto, Tri; Nugroho, Aris Widyo; Ardiyansyah, Nur
Semesta Teknika Vol 27, No 1 (2024): MEI
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/st.v27i1.18534

Abstract

Welding technology has significantly developed in the industrial sector along with advances in manufacturing technology. The demand for joining methods combining dissimilar metals is increasing in the industrial sector. However, joining dissimilar metals is challenging because of differences in physical and mechanical properties. Continuous drive friction welding is a solid-state joining method widely used to join dissimilar metals. The research aimed to determine the effect of variations in friction pressure on the mechanical properties of continuous drive friction welding joints with dissimilar materials, Aluminum 6061 T6 and Stainless Steel 304. The process parameters used in this welding were the friction pressures used were 30 MPa, 35 MPa, and 45 MPa. The friction time is 2 seconds, the rotation speed is 1000 rpm, and the upset pressure is 50 MPa. Then, welded joints were evaluated for Vickers microhardness and microstructure observations. Based on the research results, it shows that the temperature distribution and microstructure results show that there is a change in the hardness value of the aluminum material. In contrast, the 304 stainless steel material experiences an insignificant change in the hardness value.
The Effect of Tool Rotational Speed and Welding Configuration on the Mechanical Properties of High Density Polyethylene (HDPE) Plate Friction Stir Welded Joint Nugroho, Aris Widyo; Arifin, Arifin; Imbaraga, M. Rafiudin; Rahman, Muhammad Budi Nur
Semesta Teknika Vol 27, No 1 (2024): MEI
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/st.v27i1.22182

Abstract

The study investigates the impact of tool rotational speed and welding configuration on the mechanical properties of friction stir welded joints of HDPE plates. The plates were cut into rectangular shapes and clamped on a metal plate for FSW welding. Two welding configurations were used: single-side welding (SS) and double-side welding (DS), with rotational speeds of 900, 1500, and 2000 rpm. The plates were subjected to tensile and bending tests, and angular distortion was also measured. The findings suggest that decreasing the tool's rotational speed to 900 rpm and using double-side welding reduces angular distortion and improves tensile and flexural strength. The study emphasizes the importance of defect reduction techniques in improving the mechanical properties of HDPE FSW joints.
SAGO STARCH AND SODIUM ALGINATE AS NATURAL CROSSLINKING FOR CAPSULE ALTERNATIVES Harimurti, Sabtanti; Mulyanti, Amelia Nur'afni; Kusnindyasita, Anisa; Widada, Hari; Febriansah, Rifki; Suwanda, Totok; Muhtadi, Muhtadi
Jurnal Farmasi Sains dan Praktis Vol 9 No 3 (September-December 2023)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/pharmacy.v9i3.8856

Abstract

Capsule shells are generally made from gelatin. The gelatin that is spread in the world is commonly derived from pigs. This animal is forbidden to be consumed by Muslims. This issue is due to the halal aspect. Sago starch and sodium alginate are halal materials that are capable of gelatinizing. This property made it able to be molded as a capsule. This research aims to determine the formula of sago and sodium alginate as a capsule and the evaluation. Three formulas were made with the ratio of sago and sodium alginate 100%: 0% (formula 1), 50%: 50% (formula 2), and 0%: 100% (formula 3). The capsule was manually molded using a food-grade stainless steel capsule mold. The size of the capsule, weight uniformity, swelling, and disintegration time were determined for a physical evaluation. SLD was used to determine the best formula, and the validation was done using One-sample T-test. The evaluations of the capsule shell were found ranged as follows: the size specifications were 21-22 mm, the body diameter was 6.1-7.2 mm, the cap diameter was 13.6-13.8 mm, weight uniformity was 0.10-0.26 gram, the swelling test was 433-1583%, and the disintegration time was 10.20-14.43 minutes. The best formula based on the SLD of the experiment was formula 3, which are two parameters that met the requirements, i.e., swelling and disintegration time. The sago and sodium alginate were crosslinked, and the capsule was made. However, the performance dislike of gelatin capsules. Continued research shall be done to find the optimum formula and its characteristics for alternative material on halal capsules.
The effect of welding time on the tensile load capacity of dissimilar-metal stainless steel-carbon steel TIG-Spot welded joint Nugroho, Aris Widyo; Prayitno, Hadi; Rahman, Muhammad Budi Nur
Semesta Teknika Vol. 27 No. 2 (2024): NOVEMBER
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/st.v27i2.24748

Abstract

This study examines the influence of welding time on the tensile load capacity of spot TIG welds using stainless steel and low carbon steel plates (100 mm × 30 mm × 0.8 mm) as per AWS D8.9 standards. A constant welding current of 90 A was applied, with 2-, 3-, 4-, and 5-seconds welding times. Tensile properties, microstructure, and hardness were analyzed using a universal tensile machine, an optical microscope, a scanning electron microscope, and a Vickers hardness tester. Results show that the tensile load capacity increases with welding time, peaking at 4 seconds (≈4300 N), before dropping significantly at 5 seconds (≈4000 N) due to overheating, which weakens the joint. The findings highlight the critical role of optimizing welding time to maximize joint strength while preserving the material's microstructure. Overextended welding times compromise performance, emphasizing the balance required for achieving durable welds.
Co-Authors Adi Nugroho Adi, Rahmad Kuncoro Aditya Kurniawan Aditya Kurniawan Ady Ryan Romadhan Agung Astuti Ahmad Janan Febrianto Ahmad Muslim Aji Wijayanto, Nur Ardiyansyah, Nur Arifin Arifin Aris Widyo Nugroho Asmara, Muhammad Rafi Astuti, Agung Azhar, Chusnul Azizah, Aulia Fitri Nur Azmi, Azhim Asyratul Bambang Riyanta, Bambang Bayu Satriya Wardhana Budiantoro, Cahyo Budiyantoro, Cahyo Cahyani, Isma Afdwi Deny Fajrur Ramdani, Deny Fajrur Diharjo, Kuncoro Dwi Saputra, Muhammad Rifai Dwi Saputra, Muhammad Rifai Febriansyah, Albyan Windra Fitroh Anugrah Kusuma Yudha Hadi Prayitno, Hadi Hakim, Moh. Hari Widada, Hari Ikhsan, Subkhan Nur Imam Crespo Padilah Imbaraga, M. Rafiudin Iswanto Iswanto Jannah, Meyriska Julianto, Achmad Zamhari Krisdiyanto, Krisdiyanto krisdiyanto, krisdiyanto Kuncoro Diharjo Kuncoro Diharjo Kusnindyasita, Anisa Muh Budi Nur Rahman, Muh Budi Nur Muhajir Muhajir, Muhajir Muhammad Budi Nur Rahman Muhammad Budi Nur Rahman, Muhammad Budi Muhammad, Bagja Restu Muhammad, Bagja Restu Muhtadi Muhtadi Mujiyana Mujiyana Mulyanti, Amelia Nur'afni Muniib, Abdin Nugroho, Ahmad Restian Adi Nur Ardiyansyah Nurwijayanti Nyeleker, Kerkulah P Pradana, Benanta Ogi Prasetyo, Satria Iman Puspitasari, Alfina Dwi Rahman, Khukuh Aulia Rahman, Muh Budi Nur Rahman, Muhammad Budi Nur Rahman, Muhammad Budi Nur Rahman, Reza Taufikur Ramdani, Deny Fajrur Ramdhan, Gilang Joy Habib Reza Taufikur Rahman Rifki Febriansah Riza, Eduar Iqbal Romadhan, Ady Ryan Romi Wilza S. Sudarisman Sabtanti Harimurti, Sabtanti Santosa, Tito Hadji Agung Septian Aldo Serena Serena, Septian Aldo Sigit Hidayat Nuri Sigit Hidayat Nuri, Sigit Hidayat Sosiati, Harini Subkhan Nur Ikhsan Suminto, Joko Sunardi, Sunardi Syahputra, Koko Nusyi Syaifudin, Eko TH Adi Nugroho Tri Yulianto Trisnani, Wenny Nur Wahyudi, Wahyudi Wilza, Romi Yudha, Fitroh Anugrah Kusuma