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Effect of Heat Treatment and Tempering Process on the Hardness of S55c Steel as A Cutting Blade Material for Plastic Shredding Machines Yudo, Eko; Ariyanto, Ariyanto; Erwansyah, Erwansyah; Suzen, Zaldy Sirwansyah; Sugiyarto, Sugiyarto; Dharta, Yuli; Zulfitriyanto, Zulfitriyanto
Integrated Science Education Journal Vol 7 No 1 (2026): January
Publisher : Cahaya Ilmu Cendekia Publisher

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

Purpose of the study: This study aims to optimize the heat treatment process of S55C medium-carbon steel by examining the combined effects of austenitizing temperature, quenching media, and tempering temperature on impact toughness. Methodology: An experimental approach was employed using quenching and tempering treatments. Quenching was performed at three austenitizing temperatures (950°C, 1000°C, and 1050°C) with three different cooling media—salt water, oil, and seawater—followed by tempering at 100°C, 200°C, 300°C, and 400°C. All heating processes were conducted in an electric furnace. Parameter optimization was carried out using the Taguchi method with an L9 orthogonal array. Mechanical performance was evaluated through Charpy impact testing, and confirmation experiments were conducted to validate the optimal parameter combination. Main Findings: The Taguchi analysis identified the optimal quenching condition at an austenitizing temperature of 1050°C with salt water as the cooling medium, yielding the highest impact toughness. Confirmation tests supported the reliability of this result. Additionally, the tempering process showed that increasing the tempering temperature decreased hardness while significantly improving toughness, indicating effective stress relief and improved ductility in the steel microstructure. Novelty/Originality of this study: The novelty of this study lies in the integrated optimization of quenching temperature and diverse cooling media, including seawater, using the Taguchi method, with a specific focus on toughness rather than hardness alone. This research provides new insights into tailoring heat treatment parameters for S55C steel to achieve superior impact resistance, offering practical guidance for more efficient and application-oriented heat treatment strategies in manufacturing industries.

Pengaruh Parameter Proses Terhadap Kekuatan Tarik Produk 3d Printing Menggunakan Filamen Polylactic Acid (PLA) Buatan R3d Maker Rikky Ardiansyah; Zaldy Sirwansyah Suzen; Erwansyah Erwansyah
Jurnal Indonesia Sosial Teknologi Vol. 2 No. 12 (2021): Jurnal Indonesia Sosial Teknologi
Publisher : Publikasi Indonesia

Saat ini teknologi di dunia industri manufaktur telah mengalami kemajuan yang sangat pesat salah satunya adalah 3D printing. 3D printing merupakan salah satu teknologi yang mengubah data digital menjadi objek 3D dengan menggunakan proses Additive manufacturing pada saat memproduksi suatu produk. Penelitian ini dilakukan untuk mengetahui pengaruh infill pattern dan nozzle temperature terhadap kekuatan tarik produk 3D printing dengan orientasi sudut pencetakan vertikal sebesar 90° mengggunakan filamen polylactic acid (PLA). Pada penelitian material polylactic acid (PLA) akan dicetak sesuai dengan standar uji tarik ASTM D638-14 Type 4. Variasi parameter proses yang digunakan pada infill pattern berupa lines, cubic, cubic division, quarter cubic, grid, octet, concentric, zig zag, tri hexagon, triangles, gyroid, cross dan cross 3D dan nilai dari nozzle temperature yang digunakan sebesar 205°C, 215°C, dan 225°C. Pada penelitian menunjukan bahwa bahwa infill pattern dan nozzle temperature memiliki pengaruh terhadap kekuatan tarik produk 3D printing dengan orientasi sudut pencetakan vertikal sebesar 0° menggunakan filamen polylactic acid (PLA) Nilai kekuatan tarik tertinggi yang terdapat pada penelitian ini sebesar 42,5 MPa yang menggunakan infill pattern dengan tipe zig zag dan nozzle temperature sebesar 205°C. Sedangkan nilai kekuatan tarik terendah sebesar 30 MPa yang menggunakan infill pattern dengan tipe cross

Analisis Pada Proses 3d Printer Terhadap Pengujian Tarik Menggunakan Filamen Pla Pro Riskullah Dirga Trisaplin; Zaldy Sirwansyah Suzen; Subkhan Subkhan
Jurnal Indonesia Sosial Teknologi Vol. 2 No. 12 (2021): Jurnal Indonesia Sosial Teknologi
Publisher : Publikasi Indonesia

Hadirnya Revolusi Industri 4.0 menyebabkan teknologi di bidang industri manufaktur berkembang sangat pesat, salah satunya mesin Rapid Prototyping dengan teknologi FDM yang merupakan mesin cetak 3 dimensi dengan prinsip pencetakan secara additive manufacturing informasi mengenai sparameter proses yang dapat menghasilkan suatu produk 3D dengan kekuatan tarik secara ideal di Indonesia sangat minim, mengingat informasi tersebut sangat diperlukan dunia industri, sehingga penelitian ini bertujuan untuk mengetahui nilai kekuatan tarik serta parameter proses yang ideal dengan menggunakan filamen PLA PRO Metode yang digunakan pada penelitian ini adalah metode eksperimen faktorial, penelitian ini menggunakan mesin 3D printer Anet Et4, nozzle berukuran 0,4 mm, variasi parameter yang digunakan yaitu 3 level nozzle temperature, 15 infill pattern berdasarkan software Prusaslicer 2.3 dan orientasi sudut pencetakan vertikal 0ᵒ. Sehingga menghasilkan 45 kombinasi eksperimen. Hasil dari pengujian tarik tertinggi sebesar 44,2 yang terdapat pada eksperimen nomor 10 infill pattern 3D Honeycomb, Nozzle Temperature 210ᵒC, sudut pencetakan vertikal 0ᵒ. Sedangkan nilai kekuatan tarik terendah terdapat pada eksperimen nomor 43 dengan parameter infill Pattern Archimedean Chord, Nozzle Temperature 220ᵒC, sudut pencetakan vertikal 0ᵒ, dengan nilai kekuatan tarik sebesar 15,7 MPa. Sehingga dapat disimpulkan parameter proses tersebut mempengaruhi hasil dari pencetakan produk 3D printing.

Analisis Pengaruh Layer Height dan Printing Speed pada Proses FDM Terhadap Kekuatan Mekanik Filamen PETG Pristiansyah Pristiansyah; Luthfi Maulana Alvianto; Soni Afriansyah; Zaldy Sirwansyah Suzen
ARMATUR : Artikel Teknik Mesin & Manufaktur Vol. 7 No. 1 (2026): Jurnal Armatur
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/armatur.v7i1.10583

The rapid development of manufacturing technology is marked by the emergence of Additive Manufacturing (AM) or 3D Printing technology. This study aims to analyze the effect of layer height and printing speed on the mechanical strength of PETG material using the Fused Deposition Modeling (FDM) method. The printing process was carried out using an Ender 3 Pro 3D printer with process parameter variations of layer height (0.2, 0.3, and 0.4 mm) and printing speed (40, 50, and 60 mm/s) arranged according to the Taguchi L9 (3²) experimental design. eSUN PETG filament was selected due to its compatibility with the test requirements. The test specimens were fabricated according to the ASTM E23 standard with dimensions of 55 × 10 × 10 mm for impact strength testing. The results show that printing speed has a more significant influence on mechanical strength compared to layer height. The Taguchi analysis indicates that layer height contributes the most to the mechanical performance, followed by printing speed. The optimal combination was obtained at a layer height of 0.2 mm and a printing speed of 40 mm/s. Overall, the study highlights the critical role of process parameter optimization in improving the mechanical strength of 3D printed PETG thermoplastic materials.

PENGARUH VARIASI JUMLAH BLADE IMPELLER PADA WATERJET THRUSTER TERHADAP GAYA DORONG Hasdiansah Hasdiansah; Mario Oktavianto; Thala Viniolita; Marcellino Stevanus Seva; M. Ahlan Maulidiansyah; Wassi Ahadiatullah; Zaldy Sirwansyah Suzen
JURNAL ILMIAH MOMENTUM Vol 20 No 2 (2024): Vol 20, No 2
Publisher : Universitas Wahid Hasyim

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36499/jim.v20i2.10923

Waterjet thruster merupakan sistem penggerak sebuah perahu yang menghasilkan daya dorong sebagai pengganti baling-baling yang konvensional. Waterjet thruster memiliki impeller sebagai pendorong utama untuk menggerakakan perahu diperairan, Dalam penelitian ini akan dilakukan pengujian prototype waterjet thruster dengan diameter 1 inch dengan variasi jumlah blade impeller, variasi 3 blade, 4 blade dan 5 blade, masing-masing 1. Sedangkan inlet dan outlet dengan variasi 9 blade, filament yang digunakan yaitu filamen ST-PLA berdiameter 1,75 untuk mencetak prototype outlet, inlet dan impeller, didapatkan gaya dorong dengan variasi jumlah blade yang berbeda. Sehingga variasi jumlah blade impeller berpengaruh terhadap gaya dorong yang dihasilkan. Variasi jumlah blade impeller dengan gaya dorong tertinggi dihasilkan oleh variasi 3 blade 14960255 N, dan hasil gaya dorong terendah pada variasi 6 blade 0.613125 N. Artinya semakin sedikit blade impeller yang digunakan , maka gesekan yang terjadi antara blade dengan fluida semakin sedikut sehingga daya dorng yang dihasilkan dapat maksimal.

Analisis Pengaruh Nozzle Temperature dan Wall Thickness pada Proses FDM Terhadap Kekuatan Mekanik Filamen PETG Luthfi Maulana A; Zaldy Sirwansyah Suzen; Pristiansyah Pristiansyah
Jurnal Inovasi Teknologi Terapan Vol. 4 No. 1 (2026): Jurnal Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33504/jitt.v4i1.398

3D printing has rapidly developed as part of additive manufacturing, with Fused Deposition Modeling (FDM) being widely used due to its low cost and ease of operation. PETG is a popular FDM material because of its good mechanical properties and temperature resistance. However, print quality is strongly influenced by process parameters. This study evaluates the effect of FDM parameters on the impact strength of PETG and determines the optimal settings. The investigated parameters were Nozzle Temperature and Wall Thickness, each tested at three levels. The experiments were designed using the Taguchi method with an L9 orthogonal array, producing nine sample combinations. Specimens were printed using a Haltech H-01 3D printer and tested with the Charpy impact method on a GOTECH GT-7045 machine. Data were analyzed using the Signal-to-Noise Ratio with the “Larger is Better” criterion. Results show that Nozzle Temperature has a more significant effect on impact strength than Wall Thickness, indicated by a higher Delta value and greater variation in mean response. The optimal parameters were a 250°C Nozzle Temperature and 2.5 mm Wall Thickness, providing the best mechanical performance and consistency.

Pengaruh Tekanan Kompaksi Panas Satu-Arah Terhadap Karakteristik Komposit Phenolic Resin Diperkuat Serbuk Logam dan Boiler Fly-Ash Devrin Dwiki Saputra; Sukanto Sukanto; Zaldy Sirwansyah Suzen
Jurnal Inovasi Teknologi Terapan Vol. 4 No. 1 (2026): Jurnal Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33504/jitt.v4i1.407

Brake pads are generally manufactured using 60% asbestos. Although still widely used, asbestos is not environmentally friendly and poses serious health risks due to its carcinogenic properties, which can cause respiratory disorders when inhaled. Therefore, new environmentally safer innovations are needed, such as phenolic resin matrix composites. This study aims to analyze the effect of matrix percentage and compaction pressure on the density and hardness of phenolic resin matrix composites reinforced with aluminum, brass, silica sand, and boiler fly ash. The powder metallurgy method was applied, consisting of mixing, compaction, and sintering processes. Mixing was carried out using a horizontal ball mill with a Ball Powder Ratio (BPR) of 10:1 at 90 rpm for 4 hours. Matrix compositions of 25%, 29%, and 33% were tested, along with compaction pressures of 5100, 5400, and 5700 psi for 10 minutes. Density testing followed ASTM B962-17, and hardness testing used ASTM E110-14. The highest hardness before sintering was 154 HB, and the highest density was 1.308 g/cm³ at 5700 psi. After sintering, hardness increased to 216 HB and density to 2.120 g/cm³ at 5700 psi with 25% matrix composition.

Effect of Heat Treatment and Tempering Process on the Hardness of S55c Steel as A Cutting Blade Material for Plastic Shredding Machines Eko Yudo; Ariyanto Ariyanto; Erwansyah Erwansyah; Zaldy Sirwansyah Suzen; Sugiyarto Sugiyarto; Yuli Dharta; Zulfitriyanto Zulfitriyanto
Integrated Science Education Journal Vol 7 No 1 (2026): January
Publisher : Cahaya Ilmu Cendekia Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37251/isej.v7.i1.2461

Purpose of the study: This study aims to optimize the heat treatment process of S55C medium-carbon steel by examining the combined effects of austenitizing temperature, quenching media, and tempering temperature on impact toughness. Methodology: An experimental approach was employed using quenching and tempering treatments. Quenching was performed at three austenitizing temperatures (950°C, 1000°C, and 1050°C) with three different cooling media—salt water, oil, and seawater—followed by tempering at 100°C, 200°C, 300°C, and 400°C. All heating processes were conducted in an electric furnace. Parameter optimization was carried out using the Taguchi method with an L9 orthogonal array. Mechanical performance was evaluated through Charpy impact testing, and confirmation experiments were conducted to validate the optimal parameter combination. Main Findings: The Taguchi analysis identified the optimal quenching condition at an austenitizing temperature of 1050°C with salt water as the cooling medium, yielding the highest impact toughness. Confirmation tests supported the reliability of this result. Additionally, the tempering process showed that increasing the tempering temperature decreased hardness while significantly improving toughness, indicating effective stress relief and improved ductility in the steel microstructure. Novelty/Originality of this study: The novelty of this study lies in the integrated optimization of quenching temperature and diverse cooling media, including seawater, using the Taguchi method, with a specific focus on toughness rather than hardness alone. This research provides new insights into tailoring heat treatment parameters for S55C steel to achieve superior impact resistance, offering practical guidance for more efficient and application-oriented heat treatment strategies in manufacturing industries.

Pengaruh Kecepatan Pemotongan, Feed Rate Dan Depth Of Cuth Terhadap Kekasaran Permukaan Pada Benda Kerja Material S45C Pada Proses CNC Milling Wahyu Aditiiya; Yudi Oktriadi; Zaldy Sirwansyah Suzen
Jurnal Inovasi Teknologi Terapan Vol. 4 No. 2 (2026): Jurnal Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33504/jitt.v4i2.410

Surface quality is an important aspect in machining processes because it affects the performance and service life of components. S45C steel is widely used in the automotive and manufacturing industries, thus optimization of cutting parameters is required to obtain the best surface quality. Each machining parameter has a different level of influence on machining results. Therefore, this study was conducted to analyze the effects of cutting speed, feed rate, and depth of cut on surface roughness as well as to determine the optimum parameter combination in the CNC milling of S45C steel. The Response Surface Methodology (RSM) with a Box–Behnken design was used to develop the experimental plan consisting of 15 combinations. Surface roughness measurements were carried out using a Mitutoyo SJ-210. Analysis of variance (ANOVA) showed that depth of cut significantly affected surface roughness with a P-value < 0.05, while cutting speed and feed rate did not exhibit a statistically significant effect. The developed second-order regression model resulted in a saddle point characteristic, indicating that the optimum value was not located at either the lower or upper limit of the parameters. The optimization results indicate optimum conditions at a cutting speed of 82.85 m/min, feed rate of 298 mm/min, and depth of cut of 0.87 mm with a predicted surface roughness of 2.56 µm. These findings can serve as a reference for setting machining parameters to improve the surface quality of S45C steel.

Experimental evaluation of static thrust performance of an FDM-printed TPU 95A waterjet thruster Hasdiansah Hasdiansah; Herianto Herianto; Masdani Masdani; Ramli Ramli; Dafi Bazilah; Muhammad Haritsah Amrullah; Zaldy Sirwansyah Suzen; Muhamad Riva'i; Idiar Idiar; Muhammad Subhan
Jurnal Polimesin Vol 24, No 4 (2026): August
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v24i4.9048

Waterjet propulsion systems manufactured by Additive Manufacturing (AM) offer potential advantages for lightweight marine applications, but experimental data on the static thrust performance of polymer-based waterjet thrusters remain limited. This study presents an experimental investigation of the static thrust performance of a waterjet thruster fabricated from Thermoplastic Polyurethane (TPU 95A) using Fused Filament Fabrication (FFF). Static thrust was measured at rotational speeds of 1500, 3000, 4500, 6000, 7500, and 9000 rpm using a 13 hp internal combustion engine. The results showed a consistent increase in static thrust with rotational speed, from 20 N at 1500 rpm to a maximum of 170 N at 9000 rpm. However, the increase in thrust became less proportional at higher rotational speeds, indicating increasing hydraulic and mechanical losses. These losses may be associated with flow separation, turbulence, tip leakage, and elastic deformation of the TPU impeller under hydrodynamic and centrifugal loading. Despite this behavior, there is not any abrupt thrust fluctuations were observed throughout the tested operating range, indicating stable static thrust generation. The maximum thrust of 170 N demonstrates the capability of the FDM-printed TPU 95A thruster to generate measurable propulsion force under static conditions. The results provide experimental reference data for the development and optimization of additively manufactured waterjet thrusters for small-scale marine propulsion applications.

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