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All Journal Bulletin of Community Engagement Jurnal Cakrawala Maritim PROCEEDINGS CONFERENCE ON DESIGN AND MANUFACTURE AND ITS APPLICATION
Endang Pudji Purwanti
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Religion Arts Humanities Automotive Engineering Control & Systems Engineering Decision Sciences, Operations Research & Management Education Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences Other

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PENGOLAHAN LIMBAH BUAH SIWALAN MENJADI KERAJINAN POT DI DUSUN SHOBEROH, DESA DALEGAN, KECAMATAN PANCENG, GRESIK Wiwik Dwi Pratiwi; Endang Pudji Purwanti; Raffie Alfriesgasjah; Aygasta Firstya Alliyrahmanda; Reza Permana Mustofa; Raehanah Adelia
Jurnal Cakrawala Maritim Vol 6 No 2 (2023): Jurnal Cakrawala Maritim
Publisher : Pusat Penelitian dan Pengabdian Masyarakat (P3M) - PPNS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33863/cakrawalamaritim.v6i2.2571

Abstract

Siwalan fruit waste is waste from the Siwalan fruit that has entered senescence and is no longer suitable for consumption. One of the problems with this waste is that only some people process it to make valuable goods. Siwalan waste includes agricultural waste that will cause global warming if not processed. Global warming can cause an increase in temperature. Siwalan fruit waste can be used to make crafts in the form of plant pots, which benefit the plant soil. Plant pot crafts were made in stages by local community PKK women, from assembling the pot frame to finishing. The implementation of this community service used an outreach and training scheme. Then, after the community has received socialization and training, a post-test is given to see the understanding gained. The local community felt the benefits obtained after receiving outreach and training regarding the importance of processing agricultural waste.
Optimasi Parameter Proses Pemotongan Acrylic terhadap Kekasaran Permukaan Menggunakan Laser Cutting Dengan Metode Response Surface Moh. Muria Armansyah S; Endang Pudji Purwanti; Bayu Wiro Karuniawan
Proceedings Conference On Design Manufacture Engineering And Its Application Vol 1 No 1 (2017): Conference on Design and Manufacture and Its Aplication
Publisher : Proceedings Conference On Design Manufacture Engineering And Its Application

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Abstract

Dewasa ini banyak sekali permintaan pasar terutama industri produk yang materialnya terbuat dariplastic, karena pada dasarnya plastic merupakan bahan dasar yang banyak dipilih karena mudahditemui dan dapat diproses menjadi produk yang lebih kompleks. Plastic juga menjadi materialpendukung sheet metal karena beberapa jenis material plastic memiliki kriteria dan ketahananmaterial yang hampir sama dengan sheet metal. Salah satu jenis plastic yang digunakan adalahacrylic karena memiliki sifat mekanik material yang baik dan kuat. Namun ada kendala saatbanyaknya produk yang dibuat dengan bahan dasar plastic sehingga perlu adanya peningkatankualitas dan mutu produk yang dihasilkan. Salah satu cara untuk meningkatkan kualitas dan mutuproduk adalah dengan optimasi parameter. Optimasi parameter adalah teknik yang digunakan padaproses manufaktur untuk menghasilkan produk terbaik. Penelitian ini bertujuan untukmengoptimasi parameter CNC laser cutting yaitu laser power, cutting speed dan nozzle distanceuntuk mengoptimalkan nilai kekasaran permukaan pada material acrylic. Masing-masingparameter memiliki 3 level dan pada penelitian ini menggunakan metode ANOVA untukmenganalisis data hasil percobaan dan optimasi kekasaran minimum permukaan pada proses lasercutting dilakukan dengan menggunakan metode response surface yang dipadukan dengan desaineksperimen box-behken. Hasil eksperimen menunjukkan bahwa metode response surface dapatdigunakan untuk mengoptimasi parameter permesinan pada laser cutting dengan tingkat akurasiyang cukup baik. Hal ini dibuktikan dengan hasil pengaturan parameter laser cutting dalammemotong material akrilik dengan tebal 3 mm dari metode response surface ini adalah Laser Power: 55 W, Cutting Speed : 22 mm/s dan dengan Nozzle Distance : 6,5 mm dengan acuan hasilkekasaran permukaan pemotongan adalah 1,93 µm. Setelah dilakukan uji konfirmasi, hasil dari ujikonfirmasi dan perhitungan metode response surface sebelumnya tepat, maka ini menunjukkanbahwa metode response surface dapat menghasilkan parameter dan nilai kekasaran yang optimum.
Penerapan Metode Taguchi dan Grey Relational Analysis pada Optimasi Parameter Mesin EDM Sinking Terhadap Material AISI H13 Yelse Bella Yulita; Endang Pudji Purwanti; Dhika Aditya Purnomo
Proceedings Conference On Design Manufacture Engineering And Its Application Vol 4 No 1 (2020): Conference on Design and Manufacture and Its Aplication
Publisher : Proceedings Conference On Design Manufacture Engineering And Its Application

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Abstract

EDM sinking is one of the non-conventional machining processes that used to make moulds or dies. In the process, there are several things that affected on the product quality and production cost which are electrode wear rate, surface roughness, final cutting depth and material cutting rate. That four things are influenced by the selection of parameters used during machining process. This research conducted since in the field of industry, optimization becomes an important necessity to improve the quality of products produced. It aims to know how much a parameter contributes to the investigated response and get a combination of parameter settings that are assessed to result in an optimum response simultaneously. This research was conducted on AISI H13 material using Taguchi and Grey Relational Analysis methods. The parameters that researched are current (A), on time (?s), off time (?s), and gap voltage (V). The result of this research is obtained the optimum combination of parameters consisting of the current of 25 ampere, on time of 100 ?s, off time of 10 ?s, and gap voltage of 10 volts with percent contribution of current at 83.90%, on time by 3.46%, off time of 5.48%, and voltage gap of 6.86%.
Pengendalian Kualitas Ketipisan Dinding Botol Kaca Berkarbonasi Pada Proses Blow and Blow Dengan Metode Six Sigma Abid Zaidahul Barok; Endang Pudji Purwanti; Widya Emilia Primaningtyas
Proceedings Conference On Design Manufacture Engineering And Its Application Vol 4 No 1 (2020): Conference on Design and Manufacture and Its Aplication
Publisher : Proceedings Conference On Design Manufacture Engineering And Its Application

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Abstract

Non-returnable glass bottles for carbonated drinks produced by the blow and blow process have defects on the walls of the glass bottles, so that the production process is still rejected. Machine 11 had the highest reject percentage in June 2019 reached 1.20% with an average monthly reject percentage of 0.74%, this could cause harm to the company. This research aims to determine the cause of thinness of carbonated bottle walls below specifications, and also to find an effort to reduce the cause of thinness of carbonated bottle walls under specifications. The method used is Six sigma DMAIC. At the measure stage gets 4.09 sigma from the DPMO calculation and control diagram the p-chart has a statistically uncontrolled. In analyzing stage using FTA, there were 5 factors found; blank mold was replaced in productin, final blow time was too fast, counter blow time was too fast, blank mold was often repaired, swab was not done correctly, while the effort quality control to do was manually re-inject the bottles which came out of the newly replaced mold, check panel periodically during the job change process, to check final blow timing and counter blow timing, check mold lifetime, swab the dirty/ dry mold and did regular checks.
Optimalisasi Hasil Produksi pada Pabrik Manufaktur Furnitur dengan Metode Time and Motion Study (TMS) Andi Jafar Wahyu Hidayat; Endang Pudji Purwanti; Aulia Nadia Rachmat
Proceedings Conference On Design Manufacture Engineering And Its Application Vol 5 No 1 (2021): Conference on Design and Manufacture and Its Aplication
Publisher : Proceedings Conference On Design Manufacture Engineering And Its Application

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Abstract

Abstract - Increasing production quantity is the company's effort to increase the scope of production, to maximize the potential for greater product sales. The Make to Order (MTO) system used for largescale product orders has an impact on uncertain production forecasts so that good planning is needed to reach the targets. Furniture factories that have a target market for product exports, need a production time that is in accordance with the capacity of the factory. Determination of standard time is one way to increase production results. The time and motion study (TMS) method can determine the standard time by recording production tracks to get maximum production results. The results of this study indicate that the total standard time for the one seater margaret is 3,851.08 seconds. Production time for 500 products takes 67 production working days, 1000 products takes 134 production working days and 1500 products takes 201 production working days. Production calculation time using TMS has accelerated time by 11.03%, which is 477.92 seconds, compared to the existing production time, namely there is an increase in production with production acceleration of up to 9 days on 500 margaret one seater products
Analisa Pengaruh Parameter Injection Moulding pada Produk Head Travel Kit Terhadap Cycle Time dan Netto Menggunakan Metode Response Surface Yoga Karunia Perdana; Endang Pudji Purwanti; Bayu Wiro Karuniawan
Proceedings Conference On Design Manufacture Engineering And Its Application Vol 4 No 1 (2020): Conference on Design and Manufacture and Its Aplication
Publisher : Proceedings Conference On Design Manufacture Engineering And Its Application

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Abstract

Injection molding is a machining process that can form plastic-based objects in bulk and quickly. Some of the problems encountered in injection molding machines are long cycle times. This hampers the production rate. Several parameters to be analyzed for cycle time and net are injection speed, injection pressure, and holding pressure. Optimization of values for injection speed, injection pressure, and holding time is done to get the fastest cycle time and the lightest net product. The analysis process in this study uses the Response Surface method. The experimental design used was Box-Behnken with ANAVA to analyze the data. From the research conducted, it can be concluded that the injection speed parameter is a parameter that has a strong influence on cycle time, this is evidenced by the value of the injection speed tcount greater than the t table. Meanwhile, of the three parameters studied, individually did not affect the net response. The configuration parameters that produce the optimal value are the injection speed of 25 m / s, the injection pressure of 1586.8687 bar / kN, and the holding pressure of 1000 bar / kN. From this configuration, the cycle time value is 41.92 seconds and a net value is 4.739 grams.
Optimalisasi dan Penyelesaian Job Shop Scheduling Problem dengan Metode Algoritma Genetik (Studi Kasus Injection Mould Base Tumbler Upper Cap di PT. Berlina Tbk Pandaan, Pasuruan) Niko Aditya; Rina Sandora; Endang Pudji Purwanti
Proceedings Conference On Design Manufacture Engineering And Its Application Vol 4 No 1 (2020): Conference on Design and Manufacture and Its Aplication
Publisher : Proceedings Conference On Design Manufacture Engineering And Its Application

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Abstract

PT. Berlina Tbk Pandaan is a plastic packaging and mold maker company with a make to order production system especially at the Mold Shop Department with job shop production flow. From the scheduling system, production delays often occur. Injection Mold Base for Tumbler Upper Cap products was chosen as the object of research with a delay of 7 weeks. The purpose of this study is to determine the sequence of job operations flow by minimizing tardiness and makespan using the Genetic Algorithm method so as to produce optimum scheduling. The analysis of this study involved 37 jobs with 24 different machines. Calculations on the Genetic Algorithm method using Microsoft Excel and MATLAB R2012b media. From the calculation of the Genetic Algorithm method produces tardiness value of 0 hours, makespan 134.125 hours, and the highest fitness value of 2.3126. While scheduling the company produces a value of tardiness of 589.8750 hours and makespan of 195.125 hours. Then this method is able to minimize 100% tardiness and 31% makespan of company scheduling. While the operating flow of the resulting job is: 25-14-11-26-6-18-23-36-31-5-4-1-13-33- 8-35-32-12-34-7-3- 28-17-15-29-2-22-27-9-30-19-21-37-16-24-20-10.
Optimalisasi Waktu Dalam Pembangunan Blok P1701/1702 Pada Kapal Cruide Oil Tanker Di PT. Daya Radar Utama Unit Lamongan Oktavian Perdana Putra; Endang Pudji Purwanti; Fipka Bisono
Proceedings Conference On Design Manufacture Engineering And Its Application Vol 4 No 1 (2020): Conference on Design and Manufacture and Its Aplication
Publisher : Proceedings Conference On Design Manufacture Engineering And Its Application

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Abstract

PT Daya Radar Utama is one of the shipyards that has a prominent quality in the design of several shipyards in Indonesia. In meeting the needs of consumers, the company certainly has an estimated duration of project implementation and good human resource planning. That is, the project must be completed before or on the specified time. In estimating work time and productivity, optimization is needed. Optimization analysis of project time is used to find out how long it will take for a project to be completed and to look for the longest possible time in project imple-mentation with the PERT (Project Evaluation and Review Technique) and CPM (Critical Path Method) methods. From the results of the critical path analysis using network planning, it is found that the longest time needed to complete the work for the construction of Block P 1701/1702 on the Cruide Oil Tanker is based on the calculation of the critical path which is 4728.2 minutes, while the average time is optimistic and pessimistic. in the completion of the project for 4723.63 minute. From the normal time the work productivity is calculated to determine the work-load of each activity, namely the initial blasting work at 6707.8 kg / hour, marking plate work at 6030.3 kg / hour, cutting plate work 2072.9 kg / hour, work bending plate of 53783.7 kg / hour, welding T joint (SMAW) work 4942.05 kg / hour, Weld-ing Butt Joint (FC
Menumbuhkan Jiwa Wirausaha Siswa SMK Siang Surabaya Endang Pudji Purwanti; Sutrisno, Imam; Didik Dwi Suharso
Bulletin of Community Engagement Vol. 5 No. 2 (2025): Bulletin of Community Engagement
Publisher : CV. Creative Tugu Pena

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51278/bce.v5i2.1772

Abstract

Vocational education plays a strategic role in preparing a skilled workforce for both industry and entrepreneurship. However, many vocational school graduates face challenges in launching their own businesses due to insufficient entrepreneurial competencies. This study explores effective strategies for cultivating an entrepreneurial mindset among students at SMK Siang Surabaya. A qualitative research approach was employed, incorporating interviews, observations, and literature review. The findings reveal that integrating entrepreneurship education into the curriculum, offering business skills training, and implementing internship programs significantly enhance students' interest in and preparedness for entrepreneurship. The study underscores the value of a comprehensive support system, including mentorship, access to seed funding, and partnerships with local business practitioners, in addressing common obstacles such as low self-confidence, limited marketing knowledge, and financial constraints. These results provide actionable insights for vocational schools, educators, and policymakers in developing entrepreneurship-oriented educational strategies. By identifying key success factors, this research contributes to the advancement of vocational education and the promotion of sustainable youth entrepreneurship.
Co-Authors Abid Zaidahul Barok Andi Jafar Wahyu Hidayat Aulia Nadia Rachmat Aygasta Firstya Alliyrahmanda Bayu Wiro Karuniawan C. I. Sutrisno Dhika Aditya Purnomo Didik Dwi Suharso Fipka Bisono Moh. Muria Armansyah S Niko Aditya Oktavian Perdana Putra Primaningtyas, Widya Emilia Raehanah Adelia Raffie Alfriesgasjah Reza Permana Mustofa Rina Sandora Wiwik Dwi Pratiwi Yelse Bella Yulita Yoga Karunia Perdana