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Analisis Frame Meja Dandori Menggunakan Metode Finite Element Analysis (FEA) Tabayyun, Candan; Kardiman; Ujiburrahman
Metrotech (Journal of Mechanical and Electrical Technology) Vol 4 No 2: Mei 2025
Publisher : Fakultas Sains dan Teknologi, UNIRA Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/metrotech.v4i2.6955

Abstract

Meja dandori merupakan meja kerja yang dirancang untuk persiapan efisien dalam proses industri, khususnya untuk mempermudah loading dies pada mesin press, sehingga rangkanya harus mampu menahan beban besar dengan aman. Dalam penelitian ini, dilakukan analisis kekuatan struktur rangka meja dandori menggunakan metode Finite Element Analysis (FEA) untuk mengevaluasi ketahanan terhadap pembebanan statis sebesar 10.000 N, 15.000 N, dan 20.000 N. Model tiga dimensi rangka meja dandori dibuat menggunakan perangkat lunak Computer-Aided Design (CAD) dan dianalisis menggunakan perangkat lunak FEA dengan menggunakan dua jenis material, yaitu baja karbon menengah S45C dan baja struktural SS400. Evaluasi dilakukan terhadap parameter tegangan maksimum berdasarkan kriteria von mises, total deformasi, dan faktor keamanan (safety factor). Hasil analisis menunjukkan bahwa pada beban maksimal 20.000 N, baik material S45C maupun SS400 menghasilkan tegangan sebesar 14,29 MPa dan deformasi sebesar 0,032 mm, dengan faktor keamanan mencapai nilai 3, yang tergolong sangat aman untuk aplikasi industri. Meskipun kedua material memenuhi standar keamanan, material S45C memiliki keunggulan dalam kekuatan tarik yang lebih tinggi dibandingkan SS400, sehingga lebih direkomendasikan untuk aplikasi dengan potensi beban berat atau kebutuhan margin keselamatan tambahan. Disarankan untuk menggunakan material S45C untuk meningkatkan ketahanan jangka panjang, mengoptimalkan desain rangka agar lebih efisien, serta melakukan analisis berkala untuk memastikan kelayakan struktur selama masa penggunaan.
Proses Pemesinan Pada Produksi Mesin Pencacah Sabut Kelapa Sawit di PT. Raja Ampat Indotim Oga Rahadin; Kardiman; Ujiburrahman
Jurnal Serambi Engineering Vol. 10 No. 3 (2025): Juli 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

This internship report aims to examine the machining processes involved in the production of an oil palm fiber shredder machine at PT. Raja Ampat Indotim. The background of this study stems from the issue of oil palm fiber waste, which remains underutilized despite its economic potential. The internship focused on observing the step-by-step production process, including the use of milling, turning, bending, drilling, grinding, welding, and finishing operations. The study employed a qualitative approach through direct observation, interviews with machine operators, and documentation of production stages. The results indicate that the machine was successfully assembled over a span of 14 working days, with a shredding capacity of 300–500 kg/hour powered by an 80 HP diesel engine. This study provides insights into the integration of manufacturing techniques within the agricultural machinery industry and highlights the importance of efficient production in supporting sustainable management of agricultural waste.
ANALISIS BEBAN DAN TEGANGAN PADA KNUCKLE ARM MOBIL LISTRIK FORMULA STUDENT Iskandar, Don Joean; Kardiman; Siswadi; Fachrudin, Afif; Tabayyun, Candan; Arum, Ardiansyah
SINERGI POLMED: Jurnal Ilmiah Teknik Mesin Vol. 6 No. 2 (2025): Edisi Agustus
Publisher : Politeknik Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51510/sinergipolmed.v6i2.2464

Abstract

Knuckle arm merupakan salah satu komponen penting pada sistem suspensi kendaraan yang berfungsi sebagai penghubung antara sistem kemudi, suspensi, dan roda. Dalam konteks kendaraan listrik, efisiensi struktural dan ketahanan terhadap beban menjadi hal krusial untuk menjamin performa dan keselamatan. Penelitian ini bertujuan untuk menganalisis respons mekanis knuckle arm terhadap variasi beban statik menggunakan pendekatan simulasi berbasis metode elemen hingga (Finite Element Method/FEM). Proses pemodelan geometri dilakukan menggunakan perangkat lunak SolidWorks, sedangkan simulasi dan analisis struktural dilakukan dengan variasi pembebanan sebesar 500 N, 800 N, dan 1000 N. Material yang digunakan adalah Aluminium 6061-T6 dengan tegangan luluh sebesar 275.000.000 N/m². Parameter yang dianalisis meliputi tegangan von mises, deformasi total (displacement), dan faktor keamanan (safety factor). Hasil simulasi menunjukkan bahwa seluruh nilai tegangan maksimum berada jauh di bawah tegangan luluh material, dengan nilai tegangan tertinggi sebesar 4.408.601 N/m² pada beban 1000 N. Deformasi maksimum yang terjadi adalah 0,004 mm, dan nilai safety factor konstan sebesar 3,000. Sehingga diketahui desain knuckle arm yang dianalisis memiliki ketahanan struktural yang baik dan aman digunakan dalam rentang beban statik tersebut. Penelitian ini diharapkan dapat menjadi dasar pengembangan desain komponen kendaraan listrik yang lebih efisien dan andal secara struktural.
Pengaruh Parameter Pada Mesin CNC Laser Cutting Terhadap Kualitas Hasil Pemotongan Pada Material Sheet Metal di PT. XYZ: The Influence of CNC Laser Cutting Machine Parameters on the Cutting Quality of Sheet Metal at PT. XYZ Mochammad Rajib El Atros; Kardiman; Boni Sena; Fauzan Hibatullah; Mohadly Satya Permadi
Jurnal Pendidikan Teknik Mesin Undiksha Vol. 13 No. 2 (2025)
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jptm.v13i2.92721

Abstract

The advancement of the manufacturing industry demands the use of precise, efficient, and highly competitive cutting technology, one of which is CNC Laser Cutting. This study aims to analyze the influence of cutting parameters, such as cutting speed, laser power, focus distance (focusline), nozzle distance, and gas pressure, on the cutting quality of sheet metal made of SUS 304 and Aluminum. The research method includes direct experiments at PT. XYZ with variations in CNC laser machine parameters to evaluate surface roughness, dimensional accuracy, and edge quality of the cut. The results indicate that a higher cutting speed and optimal laser focus improve precision and cutting cleanliness. Nitrogen gas is more effective for cutting SUS 304 and Aluminum compared to other gases. The proper selection of the nozzle also plays a role in maintaining gas flow stability and preventing cutting defects. Additionally, the interaction between cutting speed and laser power significantly impacts the final result. The study concludes that an optimal combination of parameters produces cleaner, more precise, and more efficient cuts, thereby enhancing quality and productivity in the sheet metal industry. Therefore, selecting the appropriate parameters is crucial to achieving the best cutting results and minimizing production defects.
Evaluasi Mesin Furnace Chikka Menggunakan Metode Failure Mode Analysis (Fmea) Pt. Xx : Evaluation Of Chikka Furnace Machine Using Failure Mode Analysis (Fmea) Method Pt. Xx Yuda Purwalaksana; Kardiman; Deni Hidayat; Stefanus Aldy Kurniawan; Rio Julianto Sukarman
Jurnal Pendidikan Teknik Mesin Undiksha Vol. 13 No. 2 (2025)
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jptm.v13i2.93291

Abstract

The Furnace Chikka machine at PT. Xx plays a crucial role in the company’s production and operations. As one of the main tools used in material processing, this machine must function optimally to maintain production flow. However, over time, various potential failures can occur in the furnace system, which can affect its performance and efficiency. Therefore, an analysis is conducted to identify the risks that may arise and propose appropriate solutions. The method used in this study is Failure Mode and Effect Analysis (FMEA), aimed at identifying potential failure modes in the furnace machine, assessing their impact, and calculating the level of risk that could arise. Data collection is carried out through field observations, discussions with technicians, and literature review. The risk assessment utilizes three main parameters: Severity, Occurrence, and Detection, which are calculated to determine the Risk Priority Number (RPN). The results of this study provide recommendations for maintenance and early detection to minimize further damage.
INOVASI PENGELOLAAN LIMBAH SEKAM PADI MENJADI ARANG BRIKET SEBAGAI SOLUSI ENERGI HIJAU DI DESA KARANGTANJUNG KARAWANG Eri Widianto; Kardiman Kardiman; Farradina Choria Suci; Siswadi Siswadi; Rizal Hanifi; Najla Salsabila; Hilman Imadul Umam; Teguh Pambudi
INTEGRITAS : Jurnal Pengabdian Vol 9 No 2 (2025): AGUSTUS - DESEMBER
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat - Universitas Abdurachman Saleh Situbondo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36841/integritas.v9i2.7478

Abstract

Karangtanjung Village in Karawang Regency produces a substantial amount of rice husk waste, yet its utilization remains limited, with most of it being disposed of through open burning. This Community Service Program aims to enhance the skills of the Sukamanah II Farmers Group in converting rice husk waste into charcoal briquettes through technical training and the implementation of appropriate technology. The effectiveness of the program was evaluated using pre-test and post-test instruments to assess participants’ knowledge improvement. The results indicate an increase of 27–35% in average scores after the training sessions. The effectiveness analysis using the Normalized Gain (N-Gain) method shows that most participants achieved moderate to high improvement, with N-Gain values ranging from 0.33 to 1.00. Approximately 30–40% of participants reached the high-effectiveness category (N-Gain > 0.7), while the rest fell into the moderate category. These findings confirm that the combination of theoretical introduction, demonstration, and hands-on practice is effective in improving participants’ technical understanding of briquette production. Beyond cognitive improvement, the program also produced tangible outputs, including a briquette press machine and standardized production SOP modules. Early impacts include reduced open burning, increased productivity in biomass utilization, and emerging initiatives to establish a village-level briquette business unit. Overall, this program contributes to strengthening circular economy practices and promoting green energy innovation based on agricultural waste.
Pelapisan Baja Karbon Jis S50c Menggunakan Metode Elektroplating: Variasi Pelapisan Nickel (NI) dan Chrom (CR) Terhadap Sifat Fisik dan Sifat Kimia Zha Zha Oktaviana Dela Putri; Kardiman Kardiman; Rizal Hanfi
Jurnal Indonesia Sosial Teknologi Vol. 2 No. 06 (2021): Jurnal Indonesia Sosial Teknologi
Publisher : Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (8887.145 KB) | DOI: 10.59141/jist.v2i06.179

Abstract

Pelapisan menjadi bagian akhir dari proses produksi dari suatu produk dengan melakukan pemberian sifat tertentu pada suatu permukaan benda kerja dengan mengharapkan benda tersebut akan mengalami perbaikan terhadap sifat fisiknya mencapai bentuk setelah 6 proses pengerjaan mesin serta penghalusan terhadap permukaan benda kerja. Nikel terdapat besi dan kobalt yang sering digunakan untuk tujuan pencegahan karat dan menambah keindahan.Tujuan penelitian ini mencari pengujian sem, pengujian korosi, pengujian ketebalan dan pengujian kekerasar dari Pelapisan Baja Karbon JIS S50C dengan metode electroplating nikel dan krom dilakukan di Laboratorium Teknik Mesin Universitas Sigaperbangsa Karawang, sedangkan pengujian serta analisa hasil eksperimen material di Balai Besar Bahan dan Barang Teknik (B4T) Bandung dan pusat Penelitian Fisika di LIPI Serang. Penelitian ini menggunakan alat electroplating dan komponen bak penampung elektrolit, power supply, penjepit anoda dan katoda, heater, aerator, gerinda listrik, alat pengujur kekerasan vickers, Salt Spray Chamber dan mikrosop optik. 
ANALISIS POTENSI SUMBER DAYA KAWASAN TRANSMIGRASI DAN KAWASAN INDUSTRI PERKOTAAN BARU BUMI ASRI DUSUN TANGAH UNTUK MEMPERCEPAT PEMBANGUNAN SOLOK SELATAN SEBAGAI DAERAH TERTINGGAL DI SUMATERA BARAT Kardiman Kardiman
Agrisia: Jurnal Ilmu-Ilmu Pertanian Vol. 11 No. 2 (2019): Agrisia
Publisher : Fakultas Pertanian Universitas Borobudur

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Abstract

Analysis of the structure and utilization of the area is done by observing and assessing the structure and utilization of the area, both in the present, past, and future trends, but within the internal scope of the region. Determination of city order, service area scale, and structuring of districts to be more effective and efficient is a goal obtained from the analysis of this aspect. This research has a goal that is to determine the leading sector and re-gional development strategy in order to alleviate poverty and formulate an inte-grated concept for South Solok regency out of the category of disadvantaged areas in 2019. The research method used is surveyed approach with analytical tool is Lo-cation Quotient (LQ) and spatial analysis, planning area structure following poli-cy which has been outlined by RTRWN, RTRWP, and RTRW; the position and scale of the system of movement, concentration of activities, and allotment of land; The direction of development of regional development; taking into account the physical characteristics and carrying capacity of the environment and asso-ciated with the level of vulnerability to disasters. The research location is in South Solok District. The results showed that there were 5 leading sectors with LQ> 1 value ie agriculture, forestry and fishery sector, mining and quarrying sector, construction sector, trade, and retail; car and motorcycle repairs, health services and social activities. Of the five leading sectors, the sector that has the greatest advantage is the mining and quarrying sector which has LQ value exceeding 2 means, this sec-tor has twice the prospect of the same sector throughout West Sumatra, and the next is the Agriculture, Forestry and Fisheries sector with the value of LQ reached 1.4, meaning that this sector has a 1.4 times greater advantage than the same sector throughout West Sumatra. Another sector that has advantages is the Big trading sector with a value of LQ 1.24, meaning that the Greater Wholesaler and Trade Center has a good prospect for the future development of the KPB-BAD Trade and Business Center. On the other hand, there are two main commodity groups in agriculture, forestry and fishery sector in RKT KPB area, firstly Commodity Perak-bunan (Rubber, Palm Oil, Cocoa) which have LQ value of 1.33, meaning that plantation sector is more than 1.33 times than other commodities in this sector compared to other regions in West Sumatra province, in addition to food crop commodities al-so have a value of 1.02 LQ, which means above average compared to other com-modities in West Sumatra Province. Second, commodities with good prospects are livestock commodities with LQ = 1. 2 The concept of development that can be offered for South Solok to come out from underdeveloped and developed areas is by planning the development of Transmigration Area as hinterland area is integrated with the planning of new urban area as the industrial center (Value Added Centre). The farmers in the study area 3 Sangir Jujuan subdistrict, Sangir Balai Janggo subdistrict, Sangir Batang Hari subdistrict are farmers with narrow land category with the average land area of 0.6 Ha per person with the population of 48,949 people, so in the planning it is needed hard effort to create field (agro-industry, services and trade, mining and quarrying and even basic metal smelting industry) as well as transformation of business field from agricultural sector to industrial sector, creative service industry and trade. Keywords: Transmigration Area, New Urban Industrial Zone, Strategic Area Growing Fast.
ANALISIS BIOEKONOMI DAN STRATEGI PENGELOLAAN HUTAN LESTARI DI SUMATERA DAN SUMATERA BARAT Kardiman Kardiman
Agrisia: Jurnal Ilmu-Ilmu Pertanian Vol. 14 No. 2 (2022): Agrisia
Publisher : Fakultas Pertanian Universitas Borobudur

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Abstract

The bioeconomy aims at decreasing reliance on fossil fuels, preventing or reducing climate change, eliminating insecurity, and efficiently using resources; however, fierce controversy exists on conceivable pathways to accomplish these objectives. The aim of this paper is to promote a dialogue as to whether an economy based on biomass can be more sustainable than today’s existing economies, considering that the economy needs to expand and be boosted, while creating a cascading and recycling system. This semisystematic review paper discusses two research questions based on findings from the last 20 years : 1. To Determine the actual and optimal utilization of Sumatera Land and West Sumatera in particular. 2. To find out the actual and optional the forest bioeconomic analysis in Sumatera and West Sumatera in particular. This article recommends following a strategy that is diverse regarding its approaches to shaping the bioeconomy and further funding of Sumatera’s forest and renewable energy sources, along with the involvement of urban planning.Keywords : sustainable bioeconomy; Deforestation and Degradation, renewable energy, Biomass.
PENGARUH CLEARANCE TERHADAP KETINGGIAN BARI (BURR) PADA ARM REAR BREAK TIPE 45P DI PT. XYZ KARAWANG Sumardi; Kardiman; Farradina Choria Suci; Al Ichlas Imran
Jurnal Pendidikan Teknik Mesin Vol. 8 No. 2 (2021): Jurnal Pendidikan Teknik Mesin
Publisher : Program Studi Pendidikan Teknik Mesin Fakultas Keguruan dan Ilmu Pendidikan Universitas Sriwiajaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jptm.v8i2.15318

Abstract

Arm rear break merupakan salah satu komponen suku cadang kendaraan yang terdapat pada sepeda motor. Komponen ini dibuat menggunakan proses pembentukan (forming), dimana salah satu parameter yang menjadi pengaruh kegagalan adalah nilai clearance. Oleh karena itu, tujuan penelitian ini adalah untuk mengetahui pengaruh clearance terhadap ketinggian bari (burr) pada Arm Rear Break Tipe 45P. arm rear break dibuat dari material pelat logam lembaran dengan ketebalan 2,6 mm melalui proses forming dan variasi angka clearance sebesar 4%,5% dan 6%. Untuk proses pelubangan digunakan pisau punch berdiameter 12 mm. hasil penelitian ini adalah nilai bari tertinggi dihasilkan oleh clearance 6% sebesar 0,29 mm, kemudian clerance 5% sebesar 0,23 mm dan clearance 4% sebesar 0,17 mm
Co-Authors ., Marno A P Bayuseno A. P. Bayuseno Aa Santosa Aa Santosa Aab Arohman Ahmad Fikri Assidik Ahmad Shalihudin Al Ichlas Imran Al Ichlas Imran Aldriansyah, Muhammad Faisal Alfin Daffa Mubarok Ali, Muhammad Fathul Alvin Iskandar Aditya Anantha Malden Anggrek Oktaviameta Anjani, Ratna Dewi Arif Baidilah Arif Budiman Nugraha Aripin . Aripin Aripin Arrozaqqul Majid Arum, Ardiansyah Asep Iman Fathurrahman Banu Aji Bastaman Syah Bimantoro, Bagus Bobie Suhendra Boni Sena Dadan Ma'arif Deni Hidayat Deri Teguh Santoso Dewi Marlina Dhio Irawan Dian Budhi Santoso Dian Budhi Santoso Dicky Setyo Purnomo Dicky Didis Cahyadi Doni Setyawan Dr. Edy Sujana,SE,Msi,AK . Eko Nurprasetyo Eri Widianto Eri Widianto Esti Taqwaningrum Evan Pradana Fachrudin, Afif Faizin Nawarda Fajri Julian Faradina C.S Farradina Choria Suci Farradina Choria Suci Fauzan D.S Fuadi Fauzan Hibatullah Fawzy Muhammad Bayfurqon Gamas Rizqilah Gede Adi Yuniarta Geri Permana Habibie Mochammad Hanfi, Rizal Hanifi, Rizal Hasbi Risqullah Hidayat, Rifky Nur Hilman Imadul Umam Ilham Ramadhan Iman Dirja Iman Dirja Iskandar, Don Joean Isnawati Isnawati Iwan Nugraha Iwan Nugraha Gusniar Iwan Nugraha Gusniar Johan Hendra Saputra Jojo Sumarjo Karna Haerudin Khalid Khalid Kusnadi, Kusnadi Lilik Astari Lolla Amelia Ainun Luthfi Musthafa Luthfi Rachman Sidqi Mahardhika, Khabibbullah Enggal Mark, Wendry Marno Marno Marno, Marno Miko Mikael Mochammad Rajib El Atros Mohadly Satya Permadi Muhamad Mahbub Albuhori Muhamad Rikza Aldiansyah Muhammad Alfarhan Ficki Muhammad Andreansyah Muhammad Farhan Walidina Muhammad Rifqi Firdaus Muhammad Rifqi Firdaus Munadi Munadi Najla Salsabila Najmudin Fauji Nanang Burhan Naubnome, Viktor Naufal Yossi Laksana Noviana Nurhikmat Nugraha, Asep Erik Oga Rahadin Oleh Oleh Oleh Oleh Pakpahan, Efendi Alvonco Pradityo Abimanyu Prasojo Yogatama Reza Gumelar Rifki Maulana Sidik Rio Julianto Sukarman Riski Eka Prayoga Rivaldi Rivaldi Rizal Hanfi Rizal Hanifi Rizal Hanifi Rizal hanifi Rizky Miftahul Amri Rohadin Rohadin Rosmawan Arwinda Setyaningrum Rudi Handoko Sahrul Asrofani Saputra, Muhammad Aji Saputra Aji Simon Petrus Sidabutar Siswadi Siswadi Siswadi Stefanus Aldy Kurniawan Stefanus Muryanto Sumardi Sumardi Sumardi Tabayyun, Candan Teguh Pambudi Thoriq Azis Ujiburrahman Wahyu Tri Prayogo Wahyudin Wahyudin Wilanno, Marga Rizqi Yofi Aziz Rafi Athallah Yoggie Pratama Yuda Purwalaksana Zha Oktaviana Dela Putri, Zha Zha Zha Oktaviana Dela Putri