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All Journal Journal of Mechanical Engineering Learning Infotekmesin Journal of Community Development Abdi Masya Pengabdian Jurnal Abdimas Jurnal Polimesin
Nur Akhlis Sarihidaya Laksana, Nur Akhlis Sarihidaya
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Religion Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Engineering Materials Science & Nanotechnology Mechanical Engineering Nursing Public Health Social Sciences Other

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PENERAPAN PEMBELAJARAN MODEL EXPERIENTIAL KOLB UNTUK MENINGKATKAN HASIL BELAJAR SISWA PADA KOMPETENSI MEMAHAMI DASAR - DASAR MESIN Laksana, Nur Akhlis Sarihidaya
Journal of Mechanical Engineering Learning Vol 3 No 1 (2014)
Publisher : Journal of Mechanical Engineering Learning

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

Abstract

In the observation made ​​in SMK Negeri 1 Ampelgading Pemalang , teachers still use the learning model on conventional model of learning that occurs in one direction , so the learning process ari teachers only. Issues raised in the study is that there is a difference or not between the use of Kolbs experiential learning model and conventional learning on competency models to understand the basics of the machine ? The goal is to prove judging or not there is a difference between Kolbs experiential learning model with the conventional model of learning to understand the basic competence - the base engine . In this study using experimental research designs is true experiment , because in this design the researcher controls all external variables that affect the experimental procedure used in this study is a pretest - posttest design types desaign control group . This research was conducted at SMK Negeri 1 Ampelgading . The population in this study was 5 class X class 2013/2014 . The samples used were 2 classes of class X TKR 1 number of 39 students of class X and TKR 4 number of 40 students . Class X TKR 1 as experimental class X and class 4 as a class kontrol.Penggumpulan TKR data using statistical and data analysis using the t test . Based on the analysis of data obtained that the average - average results of a study to understand the basic competence - basic engine in the experimental group were originally 51.20 into 82.82 or an increase of 71 % , whereas in the control group who initially had an average of 52 , 33 to 65.5 , or an increase of 29 % . calculation results of data analysis there is a difference between Kolbs experiential learning model with the conventional model of learning to understand the basic competence - the base engine . For teachers , the use of the application of Kolbs experiential learning can be one of the solutions and alternatives to improve student achievement.
Pelatihan Pengolahan Limbah Kayu Mahoni (Swietenia Mahagoni) Pada BUMDes Banjarwaru Ariawan, Radhi; Laksana, Nur Akhlis Sarihidaya; Jati, Unggul Satria; Tarigan, Roy Aries Permana; Girawan, Bayu Aji; Wanti, Linda Perdana; Prasetya, Nur Wachid Adi; Ikhtiagung, Ganjar Ndaru
Journal of Community Development Vol. 5 No. 2 (2024): December
Publisher : Indonesian Journal Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47134/comdev.v5i2.258

Abstract

Banjarwaru village is one of the villages in Cilacap district with the potential for wooden broom handle craft commodities. The processing of mahogany wood (Swietenia mahagoni) into broom handles produces wood waste that has not been utilized optimally. The accumulation of wood waste is caused by a lack of knowledge among the Banjarwaru village woodworking community regarding the potential dangers, benefits, and economic value of wood waste. Therefore, training in wood waste processing into value-added products such as particleboard is needed. The Community service team together with BUMDes Banjarwaru carried out mentoring activities as a solution method for utilizing wood waste. The mentoring activities carried out consist of educating the negative effects of wood waste on the environment, educating the potential and benefits of wood waste in another processed forms, and training in wood waste processing into particleboard. These series of activities succeeded in increasing the woodworking community understanding of wood waste by 81.6%. The success rate of mentoring reached 91,67% shown by 11 out of 12 mentoring participants understood the potential danger, benefits, and other processed forms of wood waste.
PERENCANAAN KAMPUNG PRODUKTIF SEPRIH CILACAP UTARA MELALUI PENDAMPINGAN PENULISAN PROPOSAL SPONSORSHIP Tarigan, Roy; Ulikaryani, Ulikaryani; Ariawan, Radhi; Laksana, Nur Akhlis Sarihidaya; Sodikin, Jenal
Abdi Masya Vol 4 No 1
Publisher : Pusat Penelitian dan Pengabdian Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52561/abma.v4i1.251

Abstract

Hampir seluruh masyarakat tidak memiliki kesiapan dalam menghadapi situasi pandemi, secara khusus masyarakat Kampung Seprih 005/001 Kebonmanis. Pembatasan aktivitas mengakibatkan menurunnya kegiatan perdagangan warga. Pengetahuan yang terbatas dan pengalaman yang belum memadai, menghambat perkembangan usaha dagang warga yang notabene penghasilan setiap bulannya tidak tetap. Berdasarkan hal tersebut, solusi yang dibutuhkan untuk peningkatan perekonomian warga adalah kegiatan kewirausahaan bersama di lingkungan Kampung Seprih. Kegiatan wirausaha bersama ini dapat terlaksana dengan memanfaatkan lahan warga yang belum produktif. Tujuan kegiatan pengabdian ini adalah menggambarkan potensi usaha mandiri Kampung Seprih menjadi Kampung Produktif Seprih dan memberikan pelatihan serta pendampingan penulisan proposal sponsorship kepada warga secara khusus GEMA (Gerakan Pemuda Nol Lima) Kampung Seprih. Kampung Produktif Seprih digambarkan pada denah pekerjaan yang terbagi menjadi 4 area, yaitu lahan produksi, lahan peternakan, lahan pertanian, dan lahan ruang baca (perpustakaan warga Kampung Seprih). Kegiatan pelatihan dan pendampingan penulisan proposal sponsorship dilaksanakan selama 12 kali pertemuan dan diikuti oleh pengurus dan anggota GEMA. Proposal sponsorship dikirimkan ke PFmuda 2022 melalui aplikasi yang tersedia pada tanggal 18 Mei 2022 pukul 19.44 WIB. Harapan dari Penulis dan tim beserta GEMA Kampung Seprih adalah proposal tersebut lolos dan didanai kegiatan selanjutnya. Namun jika hasilnya belum sesuai rencana, maka GEMA dapat mengajukan proposalnya ke instansi lain dengan bekal pelatihan yang sudah diterima.
Wood Waste Crushing Machine Training at BUMDes Banjarwaru Sejahtera Wanti, Linda Perdana; Laksana, Nur Akhlis Sarihidaya; Jati, Unggul Satria; Tarigan, Roy Aries Permana; Girawan, Bayu Aji; Ariawan, Radhi; Prasetya, Nur Wachid Adi; Ikhtiagung, Ganjar Ndaru
Pengabdian: Jurnal Abdimas Vol. 2 No. 3 (2024)
Publisher : Yayasan Pendidikan Islam Daarut Thufulah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70177/abdimas.v2i3.847

Abstract

Background. BUMDes Banjarwaru Sejahtera is a business owned and managed by the people of Banjarwaru Village, Cilacap Regency. Some of the businesses that have been managed by BUMDes Banjarwaru Sejahtera include renting molen machines and making handicrafts such as broom handles and woven bamboo household crafts which produce an abundance of wood waste left over from the production process. So far, this wood waste has been sold to tofu craftsmen as fuel for the tofu production process. Purpose. People can use wood waste as added value by processing wood waste into handicrafts that have high economic value so that they can improve the welfare of the people of Banjarwaru village. Through this community service activity, training will be held on the use of wood waste chopping machines so that processed wood waste can be made into handicrafts such as particle boards or other handicrafts. Method. The method used is a lecture method where the community service team who are lecturers at the Cilacap State Polytechnic provide training on the use of wood waste chopping machines to members of BUMDes Banjarwaru Sejahtera and several wood craftsmen in Banjarwaru village. Results. The results of this community service activity have had a positive impact on business development at BUMDes Banjarwaru Sejahtera. Conclusion. Through this community service activity, it can be concluded that this activity has had a positive impact on the business development of BUMDes Banjarwaru Sejahtera. Apart from this, training in the use of wood waste chopping machines can also increase the competence of wood craftsmen in Banjarwaru village so they can produce more varied crafts made from wood waste.
Distortion and mechanical properties of welded AA5083 aluminum material with friction stir welding Pujono, Pujono; Kurniawan, Ipung; Pribadi, Joko Setia; Laksana, Nur Akhlis Sarihidaya; Tarigan, Roy Aries Permana
Jurnal Polimesin Vol 23, No 5 (2025): October
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v23i5.7798

Abstract

AA5083 series aluminum is one of the primary materials used in ship construction due to its excellent weldability in conventional welding processes, such as arc welding. However, similar to other aluminum alloys, the weakness of AA5083 is the occurrence of frost cracking during the welding process, especially in the HAZ and the large amount of distortion.. The research was conducted by providing additional treatment in the form of in-situ rolling on friction stir welding (FSW). The in-situ rolling treatment used a single roll positioned directly on the weld area and behind the FSW tool and moving simultaneously with the welding process and with a roll load of 8000N. The characterization carried out included thermal cycle measurements, microstructure observations, hardness value distribution testing, distortion measurements and tensile testing. The results showed that the largest distortion value occurred in the welded material without additional treatment (as welded) of 2.81 mm, while in the material with additional treatment (mechanical), the distortion value was smaller at 1.1 mm. The mechanical specimen had the best mechanical qualities, with a tensile strength of 225.5 MPa and an average hardness value of 61 VHN, whereas the as-welded specimen's tensile strength was 201.8 MPa. This phenomenon occurs because the specimen, with the addition of in situ rolling, experiences grain refinement, and it seems that this is consistent with the Hall-Petch relationship, σ_y=σ_0+k_y d^(-1/2)Materials with fine grains are harder and stronger than materials with coarse grains, because fine grains have a larger total grain boundary area to hinder dislocation movement. The tensile fracture position was in the advancing side region, where higher heat input occurred in this region than in the retreating side. 
Peranan Parameter Quench dan Temper Pada Ketangguhan Carbon-Manganese Steel Laksana, Nur Akhlis Sarihidaya; Rahman Sari Nurhidayat, Akhlis; Akhlis Sarihidaya Laksana , Nur; Yurianto, Yurianto
Infotekmesin Vol 14 No 1 (2023): Infotekmesin: Januari, 2023
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v14i1.1566

Abstract

The use of material that is specified as armor steel has a high resistant value. The quenching and tempering process is done to improve the toughness of the material. The process uses a temperature of 900oC on the quenching process with water medium and tempering temperatures of 125oC and 175oC holding time for 30 minutes. The tests include the impact test to determine the increase in the material and fractography to determine the ductility of the material. There is a decrease in the value of the impact that occurs after the quenching process. The impact value is increasing due to the tampering impact of 32 J during the quenching process to 50 J. The fractography shows brittle fractures with ridges as a feature of brittle fractures. Rapid cooling rate processes in the quenching process cause cracks in the quenching specimens.
Pengaruh Metode Quenching dan Tempering Terhadap Kekerasan Material Hot rolled Plate (HRP) Steel Nurhidayat, Akhlis Rahman Sari; Laksana, Nur Akhlis Sarihidaya; Yurianto, Yurianto
Infotekmesin Vol 14 No 2 (2023): Infotekmesin: Juli, 2023
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v14i2.1927

Abstract

Hot rolled plate steel as a material to be used for steel armor needs to have the characteristics of a high hardness value. Medium carbon steel as the basic material is quenched at a temperature of 900 oC and tempering is carried out at a temperature of 125 oC and 175 oC with a holding time of 30 minutes. The Ms value is a benchmark for changes in martensite which is influenced by the constituent elements of the material. The use of water as a quench medium changes the structure of austenite to martensite. The martensite structure that occurs increases the optimum hardness value in HRP Steel material. The tempering process carried out above the Ms value causes a decrease in the hardness value. The highest hardness value was obtained in the quenching process with 542 HV which was influenced by the distribution of martensite. The decrease in hardness value occurs due to the tempering process, the average hardness value at temper 125 oC is 524.4 HV and 175 oC is 524 HV.
Analisis Performa dan Studi Konsumsi Energi Kendaraan Listrik Sepeda Motor Listrik SEMOLI Laksana, Nur Akhlis Sarihidaya; Ariawan, Radhi; Girawan, Bayu Aji; Sari Nurhidayat, Akhlis Rahman
Infotekmesin Vol 15 No 1 (2024): Infotekmesin: Januari, 2024
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v15i1.2093

Abstract

In this article the author conducts research related to energy consumption studies on electric motorbike vehicles (SEMOLI) made and developed by the author. The purpose of the energy consumption study is to determine the energy consumption of electric motorbike vehicles that have been made for further improvement and development. The method used is experimentation with the first phase testing on a straight flat road for one kilometer with flat road conditions, this phase of experimental results shows an average energy consumption of 30 Wh, for an average uphill road consumption of 40 km / h and for the second phase of experimental data using experimental methods with speed parameters 30 - 35 km energy consumption has an average of 30 Wh, at speeds of 40 - 45 km / h energy consumption has an average of 28 Wh, and 50-55 km / h average energy consumption of 27 Wh. The test results show that on flat road conditions and the increasing speed, the energy consumption will decrease.
Rancang Bangun Sepeda Motor Listrik (SEMOLI) Generasi 3 Laksana, Nur Akhlis Sarihidaya; Aji Girawan, Bayu; Ariawan, Radhi; Rahman Sari Nurhidayat, Akhlis
Infotekmesin Vol 16 No 2 (2025): Infotekmesin: Juli 2025
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v16i2.2791

Abstract

In this research, the design process of the third generation of electric motorcycles (SEMOLI) is carried out, which is a development of the previous generation with the aim of developing electric vehicles using gearboxes, in order to add acceleration ratios to adjust to road or terrain conditions. as an alternative solution to the increase in fuel and the depletion of fossil energy sources. The results of this study support the national electric vehicle conversion program. The results can be used for the development of the automotive industry. The method used is research and development (R&D). The design process begins by calculating the design requirements for power transfer and frames. The frame simulation process produces a maximum stress of 149 MPa with a allowable stress of 163.2 MPa with a displacement of 2 mm. It is said to be safe to continue the manufacturing and fabrication process. The vehicle trial process produces a maximum vehicle speed of 55 km/h with an average energy consumption of 27 watts/hour.
Co-Authors Aji Girawan, Bayu Akhlis Sarihidaya Laksana , Nur Girawan, Bayu Aji Ikhtiagung, Ganjar Ndaru Jati, Unggul Satria Kurniawan, Ipung Nur Wachid Adi Prasetya Nurhidayat, Akhlis Rahman Sari Pribadi, Joko Setia Pujono, Pujono Radhi Ariawan Rahman Sari Nurhidayat, Akhlis Roy Aries Permana Tarigan Sari Nurhidayat, Akhlis Rahman Sodikin, Jenal Tarigan, Roy Tarigan, Roy Aries Permana Ulikaryani, Ulikaryani Wanti, Linda Perdana Yurianto Yurianto