Article Per Year (5 Year)
p-Index From 2021 - 2026
0.408
P-Index
This Author published in this journals
All Journal JURUTERA (Jurnal Umum Teknik Terapan) Jurnal Polimesin
Sumawijaya Suyatno
Universitas Samudra
Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Engineering Materials Science & Nanotechnology Mechanical Engineering

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
Influence of machining parameters on cutting performance and wear mechanisms of coated carbide tools Fransnazoan Sitorus; Naqasya Asyrori Sidabutar; Sumawijaya Suyatno; Ulfani Ikhwana Purba; Derlini Derlini
Jurnal Polimesin Vol 24, No 3 (2026): June
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v24i3.8964

Abstract

In coated carbide cutting tools, the coating layer functions as a solid lubricant that improves wear resistance and minimizes frictional and thermal effects during machining. This study investigates the influence of machining parameters on cutting performance and characterizes the coating material and WC/Co carbide substrate to better understand their relationship with tool wear behavior. The machining parameters were established through an experimental design that evaluated mechanical loading, thermal loading, and chemical interactions using microstructural analysis. The experimental design evaluated the effects of mechanical loading, thermal loading, and chemical interactions through wear and microstructural analysis. Under mechanical loading, machining of Al-6061 produced mild abrasive wear with flank wear (VB) of 0.07 mm, while AISI 1070 generated higher edge wear of 0.25 mm. Under thermal loading, a 20% increase in cutting speed resulted in VB of 0.10 mm for Al-6061, whereas a 20% reduction in cutting speed for AISI 1070 produced VB of 0.16 mm accompanied by plastic deformation. Chemical interaction analysis showed stable coating integrity without delamination during Al-6061 machining. In contrast, AISI 1070 machining caused partial diamond film loss and substrate exposure, with approximately 35% diamond film remaining after wear progression. The results indicate that tool wear behavior is mainly controlled by mechanical loading, while thermal and chemical effects remain secondary. Abrasive wear was identified as the dominant wear mechanism, causing progressive coating removal without catastrophic delamination.
Techno Economic Assessment of a Grid Connected Hybrid Solar PV System for Mosque Electrification Using HOMER: A Case Study in Aceh Tamiang, Indonesia Sumawijaya Suyatno; Muhammad Syahril; Faris Ahmad Mizanus Sabri; Syahiir Kamil; Fazri Amir
JURUTERA - Jurnal Umum Teknik Terapan Vol 13 No 01 (2026)
Publisher : Fakultas Teknik Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55377/jurutera.v13i01.13952

Abstract

The demand for electrical energy in public facilities such as mosques continues to increase along with the growing use of electrical equipment, while dependence on conventional grid electricity remains high. This study aims to design and analyze the technical performance and economic feasibility of a hybrid photovoltaic (PV) power system for a mosque in Aceh Tamiang Regency using HOMER Pro software. The research method includes load data collection, solar radiation data analysis, system configuration design, and optimization-based simulation. The simulation results indicate that the hybrid PV system, consisting of 0.5 kW solar panels, 2 kWh lead-acid batteries, and a 1.2 kW inverter, is capable of producing 992 kWh/year with a renewable energy contribution of 64.4%. The system achieves a Net Present Cost (NPC) of Rp20,893,360 and a Levelized Cost of Energy (LCOE) of Rp2,039.62/kWh. In addition, the system is able to supply the electrical load without unmet energy demand (unmet load = 0). These results demonstrate that the proposed hybrid PV system is technically and economically feasible for application in religious facilities and supports sustainable renewable energy utilization.
Co-Authors Derlini Faris Ahmad Mizanus Sabri Fazri Amir Fransnazoan Sitorus Muhammad Syahril Naqasya Asyrori Sidabutar Syahiir Kamil Ulfani Ikhwana Purba