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All Journal Dinamika : Jurnal Teknik Mesin FLYWHEEL : Jurnal Teknik Mesin Untirta SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Manutech : Jurnal Teknologi Manufaktur jurnal syntax admiration JTTM: Jurnal Terapan Teknik Mesin Integrated Science Education Journal Jurnal Akuntansi, Manajemen Dan Ekonomi Islam (JAM-EKIS) Dulang: Jurnal Pengabdian Kepada Masyarakat Jurnal Indonesia Sosial Teknologi Prosiding Seminar Nasional Inovasi Teknologi Terapan Jurnal Inovasi Teknologi Terapan
Erwansyah, Erwansyah
Jurusan Teknik Mesin, Politeknik Manufaktur Negeri Bangka Belitung
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Uji Metrologi Gerak Melingkar Pada Mesin CNC Milling Di Bengkel Mekanik Polmanbabel Syahbilla, Muthiara; Husman, Husman; Erwansyah, Erwansyah
Jurnal Inovasi Teknologi Terapan Vol. 2 No. 2 (2024): Jurnal Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33504/jitt.v2i2.175

Abstract

The manufacturing industry now demands machining processes that are not only precise but also highly efficient. Computer Numerical Control (CNC) machines such as CNC milling have emerged as the answer to these challenges by enabling high-precision mass production. The State Polytechnic of Manufacturing in Bangka Belitung has an aging CNC Milling Machine Lagun MC-750, which has been in use since the establishment of the campus several years ago. The research is focused on metrological testing of circular motion on the CNC Milling machine in the Mechanical Workshop of Polmanbabel. The analytical method involves experimental studies encompassing machining processes, data collection of the results, and data analysis. The machining process is carried out using the CNC Milling Machine Lagun MC-750 with specific parameters such as cutting depth, cutting speed, and feed motion. The test specimens are made of S45C steel with dimensions Ø31.6 x 50 mm. The analysis of 12 specimens revealed a value of 146 μm for clockwise feed motion (G02) and 174 μm for counterclockwise feed motion (G03) for the other 12 specimens. These results fall within the tolerance grade IT 10. This indicates that the machine is suitable for processing workpieces within standard tolerances, as IT 10 is commonly used in general machining for interchangeable parts that can also be classified as highly precise work.
Pengaruh Kedalaman Pemakanan dan Kecepatan Potong pada Pembubutan Finishing Material Baja SKD 11 terhadap Kekasaran Permukaan Benda Bubutan Restu, Ilham; Kurniawan, Zaldy; Erwansyah, Erwansyah
Jurnal Inovasi Teknologi Terapan Vol. 2 No. 1 (2024): Jurnal Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33504/jitt.v2i1.176

Abstract

One important factor in achieving good quality value for a product in the machining process is to look at the level of roughness produced in the machining process. This research aims to determine the effect of feed depth and cutting speed on surface roughness. The process variables used in this research are feeding depth (mm) and cutting speed (m/min). Each variable has 3 levels, namely feeding depth of 0.5, 0.6 and 0.7 mm. Cutting speed 65, 70 and 75 m/min. In this research method, researchers used the full factorial method. The material used in this research is SKD 11 steel. The conclusion obtained from the research is that the minimum surface roughness is at a cutting depth of 0.6 mm with a cutting speed of 65 m/minute, with the average surface roughness value obtained being 0.883 (µm ). The maximum surface roughness is at a feed depth of 0.6 mm with a cutting speed of 70 m/minute with an average surface roughness value of 1.254 (µm).
RANCANG BANGUN MESIN PEMISAH BERONDOL SAWIT Hasan, Muhammad; Yulianto, Ferisa; Anggraini, Asty; Erwansyah; Somawardi
Prosiding Seminar Nasional Inovasi Teknologi Terapan Vol. 4 (2024): Prosiding Seminar Nasional Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

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

Abstract

Endmill cutting edges are one of the many cutting tools found in machining processes. Apart from that, endmill are blades made of highspeed metal (HSS), cobalt and tungsten carbide. Endmills often function as a medium for making holes, profiling, contouring, slotting, counterboring, drilling, reaming and faching. In endmill sharpening, we often still sharpen manually. One of which is found in the lotus and bongman workshops. The drawback that results from this manual sharpening system is that it is limited by time. Uniformity of cutting angles, and physical injuries experienced by the endmill and the operator who carries it out. With this, we got the results of the design of an endmill cutting machine with a drive system using an electric motor with a specification of 0.5hp with an rpm of 2760. For the corner sharpening system using a shaft sleeve connected to a drill chuck and using a groove direction indicator, the movement of the division is shown in a sliding movement with 1 line calculated as 1mm offeed. On the findings on the design of an endmill cutting edge sharpening machine.
Studi Eksperimen Pengujian Kebulatan Produk Hasil Pembubutan Pada Mesin Bemato Estu, Panji; Erwansyah, Erwansyah; S Suzen, Zaldy
Jurnal Inovasi Teknologi Terapan Vol. 3 No. 1 (2025): Jurnal Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33504/jitt.v3i1.256

Abstract

The machining process in product manufacturing must meet several important criteria, including the product's outcome, accuracy, precision, quality, and quantity. Machine tools that have been used for a long period tend to experience a decline in performance, which can affect the machine's ability to produce products with the required quality, standard, or tolerance. The aim of this study is to evaluate the performance of a lathe machine that has been in use for approximately 10 years. As the machine ages, its performance may decrease, and optimal machine performance significantly influences the machining results. Therefore, an experiment was conducted to test the roundness deviation of the products produced through turning, by varying the spindle speed and depth of cut parameters, while keeping the feed rate constant. This study uses an experimental method to test and analyze machine performance based on the measurement of roundness deviations of the products. The material used was ST-41 steel with a diameter of Ø30 x 110 mm, and the cutting tool used was a Carbide Insert WNMG080404-TSF T9225G. Data on roundness was collected from products produced using the Bemato Series 44378 lathe machine with 9 test samples. Based on the test results, the highest roundness deviation found in BU 27 was 0.088 mm
AMC Brake Pad Engineering: The Role of Reinforcement, Silica Sand, and Boiler Fly Ash on Friction Coefficient and Density Syahrizal, M. Razeev; Erwansyah, Erwansyah; Sukanto, Sukanto; Budi, Abdul; Wanto, Agus
FLYWHEEL : Jurnal Teknik Mesin Untirta Vol 11, No 1 (2025): April
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/fwl.v11i1.34298

Abstract

Innovations in making non-asbestos brake linings are increasingly being developed, asbestos materials which are less friendly to the environment and health are the main factors. This research utilizes recycled aluminum as a matrix and boiler fly-ash and silica sand as reinforcement. The aim of this research process is to determine the differences in variations in hot compaction pressure and powder volume percentage on shrinkage values and friction coefficients. The method used is the powder metallurgy method which includes mechanical alloying, hot compaction pressing and sintering. Mechanical Alloying is carried out using a ball mill machine with Ball Parameter-weight of Ratio (BPR) parameters of 10:1, rotational speed of 90 rpm, holding time of 6 hours with variations in the matrix percentage of 86%, 90%, 94% and the results of the mechanical alloying  will be weighed in variations, namely 25 gr. , 35 gr, and 45 gr. ASTM B962-17 density test and ASTM G99-05 coefficient of friction or wear test. The results obtained were the highest density value of 2.055 gr/cm3 with a reinforcement percentage of 94% compaction of 5600 Psi. The lowest density value is 1.848 gr/cm3 with a reinforcement percentage of 86% compaction of 5600 Psi. The friction coefficient test value is 0.147 gr with a reinforcement percentage of 86%, the powder weight is 45 gr. The lowest value of the friction coefficient test was 0.020 gr using a reinforcement percentage of 94% and a powder weight of 35 gr.
IPTEK BAGI MASYARAKAT MESIN PENCACAH PAKAN TERNAK SAPI BERUPA CACAHAN HIJAU Suzen, Zaldy Sirwansyah; Hasdiansah, Hasdiansah; Zulfitriyanto, Zulfitriyanto; Pristiansyah, Pristiansyah; Erwansyah, Erwansyah; Sugianto, Sugianto; Ahadiatullah, Wassi; Oktavianto, Mario
Jurnal Pengabdian Masyarakat Polmanbabel Vol. 5 No. 02 (2025): DULANG : Jurnal Pengabdian Kepada Masyarakat
Publisher : Pusat Penelitian dan Pengabdian Kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33504/dulang.v5i02.479

Abstract

Animal feed is an important factor that must be considered to increase the productivity of providing green fodder both in quality and quantity, where in the provision of cattle feed is still done manually using hands with the help of machetes and sickles to chop the feed, especially for cattle breeders of the Puding Jaya II Farmer Group in Puding Village, Merawang District, Bangka Regency. The purpose of this study is to assist in the processing of livestock feed conventionally or manually by designing a chopping machine so that it can make its own cemboran and chopped feed using available materials such as special grass leaves for cattle feed or oil palm leaves so that they are easy for cattle to chew. The method used starts from designing a chopping machine that can be used as a chopping tool for raw materials for livestock feed in the form of odot plants, Indigofera, Chinese petai, jackfruit leaves, elephant grass, palm fronds and leaves which are favorite green fodder for cattle so that it is expected to lighten the burden and make it easier for cattle breeders to get livestock feed that is ready to be eaten by cattle. in an effort to increase livestock feed production can increase as expected to reach 200-300 percent.
Studi Eksperimen Terhadap Performansi Mesin Bubut Bemato Series 44378 BU 27 Berdasarkan Penyimpangan Kesilindrisan Produk Hasil Pembubutan Gentara, Raju; Erwansyah, Erwansyah; Husman, Husman
Jurnal Inovasi Teknologi Terapan Vol. 3 No. 2 (2025): Jurnal Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33504/jitt.v3i2.297

Abstract

Machine tools are machines used to produce products in the industrial sector. Machine tools that have been used for a very long time will naturally experience a decrease in performance, this is also experienced by the Bemato Series 44378 BU 27 lathe in Polman Negeri Babel which has entered its service life for approximately 10 years. The factors that affect the results of lathe machining are machining parameters, including cutting speed, cutting depth, and engine rotation speed. To find out how good the performance of the lathe can be done in various ways or tests, one of which is the cylindricity test. The material used in this test is st-41 steel. From the results of the research conducted, the largest deviation in cylindricity of the Bemato Series 44378 BU 27 lathe is 769 μm. Based on the deviations that occur when compared with the Grades of tolerance table, the results are included in the IT 15 grade. This value can be concluded that the BU 27 machine has experienced a decline in performance that is very far from its minimum standard, and is only capable of producing workpieces with tolerances above 769 μm. With this decline in performance, the lathe that was studied must be repaired and maintained immediately so that the performance of the machine can be returned to standard conditions.
Analisis Kelayakan Mesin Frais Vertikal Lagun Fu125 Berdasarkan Ketelitian Geometrik Terhadap Benda Kerja zuladin, yanuar; Oktriadi, Yudi; Erwansyah, Erwansyah
DINAMIKA : Jurnal Teknik Mesin Vol 9, No 1 (2024): Dinamika : Jurnal Teknik Mesin
Publisher : Program Studi Teknik Mesin Universitas Khairun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33387/dinamik.v9i1.7721

Abstract

Pada laboratorium mekanik Politeknik Manufaktur Negeri Bangka Belitung memiliki beragam mesin perkakas, salah satunya mesin frais spindel vertikal lagun fu 125. Mesin ini digunakan sebagai fasilitas pembelajaran praktikum mahasiswa dan juga digunakan untuk keperluan produksi Mesin perkakas dipolman babel terutama mesin frais universal berusia hampir 30 tahun dan sering memproduksi benda kerja berukuran besar. Karena kurangnya perawatan pada mesin ini memungkinkan mesin mengalami penyimpangan melebihi batas toleransi. Oleh karena itu, dibutuhkan pemeriksaan geometrik pada mesin tersebut melalui hasil pemesinan pada benda kerja. Tujuan penelitian ini untuk mengetahui kelayakan mesin dilihat dari hasil proses pemesinan. Penelitian ini menggunakan metode  studi eksperimental. Parameter yang digunakan meliputi; kecepatan spindel ( Rpm) dan kedalaman pemakanan (mm. Berdasarkan penelitian maka pada sumbu X nilai penyimpangan 0,052 mm sehingga dikatakan tidak layak dan harus dilakukan perbaikan. Sedangkan pada  sumbu Y nilai penyimpangan  sebesar - 0,037 mm sehingga dikatakan masih layak.
The effect of sugarcane fiber volume fraction and variations in NaOH immersion on polyester matrix with impact strength Haryoszi, Haryoszi; Juanda, Juanda; Erwansyah, Erwansyah
JTTM : Jurnal Terapan Teknik Mesin Vol 7 No 1 (2026): JTTM: Jurnal Terapan Teknik Mesin
Publisher : Teknik Mesin - Universitas Muhammadiyah Cileungsi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37373/jttm.v7i1.1972

Abstract

The development of material technology demands the availability of materials that have high mechanical strength but remain lightweight and environmentally friendly. One potential alternative is a natural fiber-based composite material. Bagasse fiber, as a waste product of the sugar and beverage industry, has a high cellulose content so it has the potential to be used as a reinforcement material in composites. However, the surface character of the fiber, which still contains lignin and hemicellulose, needs to be modified so that it can bond well with the polyester matrix. This study aims to analyze the effect of variations in the volume fraction of bagasse fiber and the duration of immersion in NaOH solution on the impact strength of polyester-based composites. Sugarcane fiber was immersed in a 5% NaOH solution with varying times of 60, 90, and 120 minutes, and combined with three fiber volume fractions, namely 13%, 15%, and 17%. Specimens were prepared using the hand lay-up method and impact testing was carried out according to the ISO 179-1 standard using the Charpy impact test method. The test results showed that the combination of fiber fraction and immersion time had a significant effect on the toughness of the composite. The highest impact strength value of 51.5 kJ/m² was obtained at a fiber volume fraction of 13% with a soaking time of 120 minutes, while the lowest value of 25.6 kJ/m² was obtained at a fraction of 17% with the same soaking duration. In general, a soaking time of 90 minutes produces the best impact strength stability because it produces a balance between the cleanliness of the fiber surface and the integrity of its cellulose structure. Based on these results, bagasse fiber composites have proven to have great potential as an environmentally friendly alternative material that can be applied to automotive components such as car dashboards, replacing conventional synthetic materials.
Studi Eksperimen Terhadap Performansi Mesin Bubut Bemato Series 44378 BU 27 Berdasarkan Penyimpangan Kesilindrisan Produk Hasil Pembubutan Erwansyah, Erwansyah; Husman, Husman; Gentara, Raju
Manutech : Jurnal Teknologi Manufaktur Vol. 17 No. 02 (2025): Manutech: Jurnal Teknologi Manufaktur
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33504/manutech.v17i02.486

Abstract

Machine tools are machines used to produce products in the industrial sector. Machine tools that have been used for a very long time will naturally experience a decrease in performance, this is also experienced by the Bemato Series 44378 BU 27 lathe in Polman Negeri Babel which has entered its service life for approximately 10 years. The factors that affect the results of lathe machining are machining parameters, including cutting speed, cutting depth, and engine rotation speed. To find out how good the performance of the lathe can be done in various ways or tests, one of which is the cylindricity test. The material used in this test is st-41 steel. From the results of the research conducted, the largest deviation in cylindricity of the Bemato Series 44378 BU 27 lathe is 769 ?m. Based on the deviations that occur when compared with the Grades of tolerance table, the results are included in the IT 15 grade. This value can be concluded that the BU 27 machine has experienced a decline in performance that is very far from its minimum standard, and is only capable of producing workpieces with tolerances above 769 ?m. With this decline in performance, the lathe that was studied must be repaired and maintained immediately so that the performance of the machine can be returned to standard conditions.
Co-Authors Abdul Wahab Agus Herianto Agus, Darma Afriliansyah Ahadiatullah, Wassi Angga Triatmaja Anggraini, Asty Ariyanto Ariyanto Asri, Wahyudi Azizah, Asma Budi, Abdul Burhanuddin Burhanuddin Dharta, Yuli Dimas putra utama Dwi Ranti Safitri Eko Yudo Estu, Panji Gentara, Raju Gusmantoro, Devri Haryoszi, Haryoszi Hasdiansah, Hasdiansah Hilman Maulana, Dikky Husman Husman Ibrahim Ibrahim Idiar , Idiar Idiar Idiar Idiar Idiar, Idiar Ilham Ary Wahyudie Juanda Juanda M. Saleh M. Sobry Mahsup, Mahsup Mardiyah Hayati Masdani, Masdani Mas’ad, Mas’ad Mintasrihardi, Mintasrihardi Muhammad Darmawan Muhammad Hasan Muhammad Rizki Muhammad Salahuddin Muhammad Setya Pratama Muhammad Yunus Nasution, Muhammad Dharma Tua Putra Oktavianto, Mario Oktriadi, Yudi osama, sayyid Pristiansyah, Pristiansyah Restu, Ilham Rifky Rizaldy Rikky Ardiansyah Rollastin, Boy S Suzen, Zaldy Shanty Dwi Krishnaningsih Sintayana Muhardini Siti Hasanah Somawardi Somawardi Sri Rejeki Sugianto Sugianto Sugianto Sugianto Sugiyarto Sugiyarto Sukanto Sukanto Suzen, Zaldy Sirwansyah SYAFRUDDIN, Akhmad Syahbilla, Muthiara Syahrizal, M. Razeev Talsa Fani Tuparjono . Wanto, Agus yulia Yulianto, Ferisa Zainuddin, Zainuddin Zaldy Kurniawan zuladin, yanuar Zulfitriyanto, Zulfitriyanto