Garuda - Garba Rujukan Digital

p-Index From 2021 - 2026

4.269

P-Index

This Author published in this journals

All Journal Rekayasa Mesin LONTAR Jurnal Teknik Mesin Undana (LJTMU ) Prosiding Semnastek ROTOR: JURNAL ILMIAH TEKNIK MESIN Jurnal Akta JTT (Jurnal Teknologi Terpadu) Machine : Jurnal Teknik Mesin Manutech : Jurnal Teknologi Manufaktur Sprocket : Journal of Mechanical Engineering Dulang: Jurnal Pengabdian Kepada Masyarakat Prosiding Seminar Nasional Inovasi Teknologi Terapan Jurnal Inovasi Teknologi Terapan

Zaldy Kurniawan

Teknik Mesin, Politeknik Manufaktur Negeri Bangka Belitung

Author-ID : 2448337

Agriculture, Biological Sciences & Forestry Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Social Sciences Other

Published : 37 Documents Claim Missing Document

Claim Missing Document

Articles

1 2 3 4

Variasi Parameter Proses Terhadap Pengujian Material Removal Rate dengan Mesin CNC Bubut pada Proses Finishing Baja SKD-11 Menggunakan RSM Saputra, Anggi; Kurniawan, Zaldy; Oktriadi, Yudi
LONTAR Jurnal Teknik Mesin Undana (LJTMU ) Vol 11 No 01 (2024): April 2024
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/ljtmu.v11i01.14735

ABSTRAK Mesin CNC Turning dalam industri manufaktur berperan dalam menghasilkan komponen-komponen yang memerlukan ketelitian dan kompleksitas yang tinggi. Peralatan permesinan yang digunakan sangat berpengaruh untuk mengingatkan nilai proses produksi pada dunia manufaktur. SKD-11 mempunyai tingkat ketahanan aus yang tinggi, daktilitas yang baik, sehingga baik dan tepat untuk komponen yang memerlukan presisi dan daya tahan tinggi. Untuk mencapai optimasi dapat digunakan Response Surface Method (RSM) Box Behnken Design, dengan tiga varian yang dapat memperoleh nilai optimasi terbaik. Pada penelitian ini variabel gerak makan dan kedalaman nutrisi merupakan variabel yang signifikan atau mempengaruhi MRR. Dari hasil analisa diperoleh nilai optimasi untuk kecepatan potong 286,238 m/menit, gerak pemakanan 0,19751 mm/putaran, kedalaman pemakanan 0,12486 mm.

Pemanfaatan Fly Ash Sebagai Bahan Alternatif Pada Bata Beton Untuk meningkatkan Peredaman Panas chardova, andreas; Napitupulu, Robert; Kurniawan, Zaldy
Jurnal Teknologi Terpadu Vol 12, No 2 (2024): JTT (Jurnal Teknologi Terpadu)
Publisher : Pusat Penelitian dan Pengabdian Kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32487/jtt.v12i2.2273

Pemanfataan fly ash sebagai bahan tambah bata beton memberikan dampak positif terhadap lingkungan, selain mengurangi pencemaran lingkungan. Fly ash memiliki kandungan silikat yang kemiripan seperti semen, penambahan fly ash pada campuran bata beton bisa menjadi bahan tambah mineral yang baik untuk bata beton karena fly ash tersebut mengandung silika yang bersifat mengikat. Penelitian ini bertujuan untuk mengetahui pengaruh limbah fly ash sebagai bahan tambah terhadap peredaman panas serta mengetahui nilai komposisi yang tertinggi dan terendah untuk penambahan limbah fly ash terhadap bata beton agar dapat meredam panas. Metode yang digunakan dalam penelitian ini adalah metode full faktorial dengan variabel proses fly ash : pasir 10% : 60%, 20% : 50%, 30% : 40% dan lama pengeringan 3 dan 5 hari, dan dilakukan uji peredaman panas sebagai respon yang diamati dengan jumlah 6 spesimen dan 3 kali replikasi pada setiap spesimen. Berdasarkan hasil penelitian yang diperoleh menunjukkan bahwa spesimen dengan fly ash : pasir 30% : 40% dengan waktu pengeringan 5 hari mendapatkan nilai tertinggi sebesar 6,6oC. sedangkan fly ash : pasir 10% : 60% dengan waktu pengeringan 3 hari mendapatkan nilai terendah sebesar 4oC.

Penggunaan Fly Ash sebagai Material Bata Beton untuk Meningkatkan Daya Peredaman Panas pada Ruangan Napitupulu, Robert; Chardova, Andreas; Kurniawan, Zaldy
Manutech : Jurnal Teknologi Manufaktur Vol. 16 No. 02 (2024): Manutech: Jurnal Teknologi Manufaktur
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33504/manutech.v16i02.445

The use of fly ash as an additive for concrete bricks has a positive impact on the environment, in addition to reducing environmental pollution. Fly ash has a silicate content that is similar to cement, the addition of fly ash to the concrete brick mixture can be a good mineral additive for concrete bricks because fly ash contains silica which is binding. This study aims to determine the effect of fly ash waste as an additive on heat reduction and to determine the highest and lowest composition values ??for the addition of fly ash waste to concrete bricks in order to reduce heat. The method used in this study is the full factorial method with process variables of fly ash: sand 10%: 60%, 20%: 50%, 30%: 40% and drying time of 3 and 5 days, and a heat reduction test was carried out as a response observed with a total of 6 specimens and 3 replications for each specimen. Based on the research results obtained, it shows that specimens with fly ash: sand 30%: 40% with a drying time of 5 days get the highest value of 6.6oC. while fly ash: 10% sand: 60% with a drying time of 3 days obtained the lowest value of 4oC.

Analisis Pengaruh Perekat Tepung Tapioka Pada Pengurangan Kadar Abu Briket Tempurung Kelapa Pratama, Randa Julio; Napitupulu, Robert; Kurniawan, Zaldy; Darta, Yuli
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.v3i2.269

Binders play a vital role in briquette production by uniting charcoal particles into a solid form. This study aims to evaluate the effect of tapioca starch concentration as a binder on reducing the ash content of coconut shell briquettes. The binder concentrations used were 10%, 15%, and 20% of the total material mixture, with ash content testing conducted according to SNI 01-6235-2000 standards. The briquette production process involved raw material preparation, mixing, molding, and drying. The results indicated that binder concentration significantly influenced the ash content of the briquettes. Lower binder concentrations resulted in reduced ash content, with the lowest ash content of 1.52% achieved at a binder concentration of 10%. Conversely, higher binder concentrations tended to increase ash content due to residual binder that did not fully combust. This study emphasizes the importance of regulating binder concentration to enhance the quality of coconut shell briquettes as an alternative fuel source.

Pengaruh Media, Temperatur Dan Waktu Perlakuan Annealing Pada Spesimen Standar ASTM D638 Type IV Menggunakan Filamen ST PLA Subakti, Yulian; -, Hasdiansah; Kurniawan, Zaldy
SPROCKET JOURNAL OF MECHANICAL ENGINEERING Vol 3 No 1 (2021): Edisi Agustus 2021
Publisher : Program Studi Teknik Mesin, Universitas HKBP Nommensen, Medan

Fused Deposition Modeling (FDM) is a technique of 3D Printing machines that is popularly used to print products. The printed product certainly has the ideal tensile strength characteristics if it has a precise size and good shape according to the standard. One of the materials that can be processed in a 3D printing machine is ST PLA. Research in terms of tensile testing has been carried out on PLA/ABS materials. However, tensile testing with annealing process using ST PLA filament is still very rarely done. From these problems, it is necessary to research to obtain optimal process parameters on 3D printing machines, to obtain the highest tensile strength from the annealing process using ST PLA material. This research was conducted using a 3D printer DIY Prusa model with a printing area of XYZ, 300 mm x 300 mm x 350 mm. The material used is ST PLA filament with a diameter of 1.75 mm in green. The process parameters in this research are layer thickness, nozzle temperature and flow rate. For annealing media use beach sand, coffee and wheat. The shape of the test specimen follows the ASTM D638 type IV standard. As for the design of the process parameters using the Taguchi L9 method (33). The process parameter values that produce the highest tensile strength without annealing are layer thickness 0.3 mm, nozzle temperature 205oC, and flow rate 100%. The annealing process parameters that produce the highest tensile strength are annealing time of 15 minutes, oven temperature of 110oC, for annealing media using coffee.

VARIASI SUDUT POTONG DAN KECEPATAN POTONG TERHADAP LAJU PEMAKANAN MATERIAL SCM 440 Pratama, Arianda; Kurniawan, Zaldy; -, Husman; Wahyudie, Ilham Ary
Machine : Jurnal Teknik Mesin Vol 9 No 2 (2023): Machine : Jurnal Teknik Mesin
Publisher : Jurusan Teknik Mesin Fakultas Sains dan Teknik Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jm.v9i2.3611

During the workpiece turning process, several factors affect the final workpiece, such as the cutting angle and cutting speed. The purpose of this study was to determine the effect of variations in cutting angle and cutting speed on the material consumption rate of SCM 440. The method used in this study is the Response Surface Methodology (RSM), with a two-parameter design, each of which has three levels for each parameter variation. . The results of data analysis obtained eigen values with different signs (positive and negative) which indicated that the stationary point values were in the form of saddle points with a stationary point values of x1 (cutting angle) of -1.686 and x2 (Vc) of 0.199. From the uncoded process, the optimal value for the MRR factor is obtained, namely the cut angle of 10.64° and Vc of 15.28 m/min. The optimum feed rate for SCM 440 material is obtained at an optimal value of neither minimum nor maximum or a saddle point shape at a cutting angle cut of 10.64° and Vc of 15.28 m/min with an MRR area of 300-400 mm3/minute.

MINIMALISASI MINIMUM ZONE CIRCLE MENGGUNAKAN METODE STATIONARY POINT Oktriadi, Yudi; Saputra, Anggi; Kurniawan, Zaldy; Wahyudie, Ilham Ary
Jurnal Rekayasa Mesin Vol. 16 No. 1 (2025)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v16i1.1727

The success of the manufacturing world in improving production processes is greatly influenced by the machine equipment used. SKD-11 steel has high wear resistance and good ductility, so it is suitable for components that require high precision and durability. Surface Response Method (RSM) Box-Behnken Design can be used in the optimization process, which has three variables that can predict the best optimum value. The roundness variable used in this research is MZC (Minimum Zone Circle), whose non-roundness value is the difference between the radius of the most extensive circle profile and the smallest circle profile, MZC. From the test results, it was found that the smallest non-sphericity was 7.5 μm. The optimal value for this test is VC 234.784 m/minute, feeding 0.127 mm/rev and depth of cut 0.18 mm, and the predicted response value is 13.05 μm. From the results of the ANOVA analysis, these three factors have no effect on roundness, but there is one factor that almost influences roundness, namely the depth of cut.

Co-Authors -, Husman A Adjie Abdillah Halim Angga, Muhammad Angga Pratama anggi saputra Arianda Pratama Arif Budi Pamungkas Ariyanto Ariyanto Arya Adjie chardova, andreas Darta, Yuli Deri Saputra, Deri Dika Qomara Sari Djauhari Djauhari Eko Yudo Erick wiratama Erin Aftarini Erwansyah, Erwansyah Febriyansa, Agus Feriadi, Indra Findra Setyanto Firdi Irawan Geril Satrio Ramadhan Gilang Perdana Harwadi, Harwadi Hasdiansah, Hasdiansah Husman - Husman, Husman I Mahyudi Ilham Ary Wahyudie Ival Ival Mahendra, Anan Masdani Masdani Masdani, Masdani Muhammad Haritsah Amrullah Muhammad Subhan Muhammad Yunus Odidio Pratama Odidio Oktriadi, Yudi Pranata, Yogi Pratama, Arianda Pratama, Randa Julio Pristiansyah, Pristiansyah Rapiansah Rapiansah Restu, Ilham Ridho Rosmansyah Robert Napitupulu Rodika Rollastin, Boy S.Pd. M Kes I Ketut Sudiana . Said Apreza Seva, Marcell Subakti, Yulian Sugianto Sugianto Suzen, Zaldy Sirwansyah Syamsul Arifin Trisna Fitri Mutiari Yuliyanto Yuliyanto Zanu Saputra Zulkipli Zulkipli

Title

Found 37 Documents
Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title Search

Found 37 Documents Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title

Found 37 Documents
Search