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Contact Name
Eko Budiyanto
Contact Email
editorajme@gmail.com
Phone
+6285640091329
Journal Mail Official
editorajme@gmail.com
Editorial Address
Jl. Onggomertan No. 13, Sleman, Yogyakarta
Location
Kab. sleman,
Daerah istimewa yogyakarta
INDONESIA
Asian Journal of Mechanical Engineering
ISSN : -     EISSN : 31095712     DOI : -
Core Subject :
The Asian Journal of Mechanical Engineering or AJME (e-ISSN 3109-5712) is a peer-reviewed, open-access journal dedicated to publishing high-quality research in the field of mechanical engineering. The journal serves as a platform for academics, researchers, and industry professionals to share innovative developments, theoretical advancements, experimental studies, and practical applications relevant to mechanical and related engineering disciplines. AJME particularly emphasizes contributions from Asia and the Pacific region, fostering regional expertise while welcoming global perspectives. The journal covers a broad spectrum of topics, including but not limited to: Thermal and fluid sciences Materials and manufacturing engineering Design and optimization Mechatronics and robotics Automotive and aerospace engineering Sustainable energy systems AJME is committed to upholding rigorous academic standards and supporting the open exchange of knowledge to promote technological advancement and industrial development. AJME is published twice a year in the following periods: Issue 1: January – June Issue 2: July – December Each issue includes original research articles, review papers, and technical notes that contribute to the advancement of mechanical and related engineering fields.
Arjuna Subject : -
Articles 9 Documents
Tensile Strength Evaluation of MIG-Welded AISI 1045 Carbon Steel with Post Weld Heat Treatment Muhammad Arsyad; Yusuf Rizal Fauzi
Asian Journal of Mechanical Engineering Vol. 1 No. 1 (2025): January – June
Publisher : Global Scientific Media

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Abstract

This study aims to investigate the effect of Post Weld Heat Treatment (PWHT) on the tensile strength of similar material welding. An experimental method was used in this research. The samples consisted of AISI 1045 carbon steel welded using the Metal Inert Gas (MIG) method, followed by PWHT. The MIG welding process was performed with varying current levels of 80 A, 90 A, and 100 A. PWHT was applied at different temperatures: 600°C, 700°C, and 800°C. Data were analyzed using quantitative descriptive methods based on tensile test results. The findings show that: (1) The PWHT at 600°C resulted in the highest tensile strength of 893.33 MPa, outperforming treatments at 800°C (680.88 MPa) and 700°C, as well as the non-PWHT sample (658.66 MPa). (2) PWHT temperature significantly influences tensile strength. (3) The optimal welding condition was found at a current of 100 A combined with a PWHT temperature of 600°C, yielding the highest tensile strength in AISI 1045 material.
Surface Engineering of Dental Implants: Techniques, Mechanisms, and Clinical Considerations Eko Budiyanto; Lukito Dwi Yuono
Asian Journal of Mechanical Engineering Vol. 1 No. 1 (2025): January – June
Publisher : Global Scientific Media

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Abstract

Dental implants have emerged as one of the most effective and widely accepted solutions for replacing missing natural teeth in modern dentistry. The long-term success or potential failure of dental implants is influenced by a range of local and systemic factors. Among these, the surface characteristics of the implant play a pivotal role in the initial biological response following implantation. In particular, surface roughness has garnered significant interest in recent years due to its ability to enhance the interaction between the implant and the surrounding bone tissue. To promote faster and more effective osseointegration, the direct structural and functional connection between living bone and the surface of the implant, numerous surface modification techniques have been explored. These include mechanical, chemical, and physical treatments, often utilizing various materials designed to improve biocompatibility and promote early bone healing. While a growing body of research suggests that such surface treatments can significantly accelerate healing, particularly in the initial stages following implant placement, clinical decision-making must still be guided by both the available scientific evidence and the specific needs of each patient case. This review article aims to synthesize current knowledge regarding the surface treatment of dental implants. By critically analyzing findings from various experimental and clinical studies, it provides insights into the advantages and limitations of different surface modification techniques currently in use. The goal is to assist clinicians and researchers in selecting appropriate implant systems based on evidence-based outcomes and clinical applicability.
Investigation of Vickers Hardness in Hardened Scrap Automotive Spring Steel A. E. Heka; M. Hasbi
Asian Journal of Mechanical Engineering Vol. 1 No. 1 (2025): January – June
Publisher : Global Scientific Media

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Abstract

The objective of this study is to investigate the effect of hardening temperature on the surface hardness of high carbon steel. The research was conducted experimentally in a laboratory setting using descriptive statistical analysis. The material used was high carbon steel with a carbon content of 0.465%. Three hardened test samples were subjected to Vickers hardness testing, with five indentations measured on the upper, middle, and lower sections of each sample. One additional sample was left untreated as a control. The hardening process involved heating the samples to varying austenitizing temperatures of 600°C, 700°C, and 800°C, followed by quenching in water. The findings of this study aim to reveal the hardness characteristics of recycled leaf spring steel after undergoing different hardening treatments.
Experimental Study on the Influence of Bevel Geometry in SMAW Welding on Tensile Strength A. Khalid; A. Barry; Y. R. Fauzi
Asian Journal of Mechanical Engineering Vol. 1 No. 1 (2025): January – June
Publisher : Global Scientific Media

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Abstract

The strength of welded joints is influenced by various factors, one of which is the structural transformation caused by the heat generated during the welding process. To ensure a high-quality connection between two metal components, proper welding techniques and appropriate joint design—particularly the bevel geometry—are essential. In Shielded Metal Arc Welding (SMAW), critical parameters include current, voltage, polarity, and joint angle, all of which contribute to weld quality. This study investigates the effect of different bevel types on the tensile strength of welded joints in medium carbon steel. Welding was performed using RB-26 electrodes at a current of 100 A in the 1G position, with three bevel variations: V, I, and double V. One specimen was prepared for each bevel type. The results indicate that bevel geometry significantly affects the mechanical performance of the weld. Among the tested variations, the V bevel produced the highest tensile strength, outperforming the I and double V bevels. This result is attributed to the lower distortion angle observed in the V bevel configuration. Overall, achieving optimal weld quality is closely related to both joint design and welding technique.
Influence of Welding Parameters on the Tensile Properties of ASTM A36 Using FCAW for Medical Storage Applications Moh. Dimas Hakim; Eli Novita Sari; Dian Ridlo Pamuji; I.G.N.B. Catrawedarma; Mohammad Abdul Wahid; Akhmad Afandi
Asian Journal of Mechanical Engineering Vol. 1 No. 1 (2025): January – June
Publisher : Global Scientific Media

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Abstract

This study investigates the influence of welding parameters on the tensile properties of ASTM A36 steel using the Flux Cored Arc Welding (FCAW) method for medical storage applications. ASTM A36 is widely used due to its good weldability and ductility, making it suitable for tank fabrication in medical systems. The research focuses on the effects of varying current (120 A, 135 A, 150 A) and voltage (22 V, 24 V) settings without the application of Post Weld Heat Treatment (PWHT). Tensile tests were performed to assess the mechanical strength of the welded joints. The results indicate that the welding setting of 120 A and 22 V produced the highest tensile strength of 464.8 MPa. In contrast, higher current settings, particularly 135 A, led to a reduction in tensile performance. The findings demonstrate that appropriate control of welding parameters is crucial to achieving optimal tensile strength in FCAW-welded ASTM A36 components for medical storage systems.
Effect of Holding Time in Pack Carburizing Using Bamboo Charcoal on the Mechanical Properties of ST 41 Steel Feris Kurniaawan; Muhamad Fajar Sidiq; Irfan Santosa
Asian Journal of Mechanical Engineering Vol. 1 No. 2 (2025): July – December (In progress)
Publisher : Global Scientific Media

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Abstract

This study investigates the effect of holding time in the pack carburizing process using bamboo charcoal on the mechanical properties of ST 41 steel. The carburizing treatment was conducted at a temperature of 850 °C using a solid carburizing medium consisting of bamboo charcoal and barium carbonate in an 80:20 ratio. Holding time variations of 45, 65, and 85 minutes were applied. After carburizing, the specimens were quenched in SAE 20W-50 oil and subsequently tempered at 350 °C for 20 minutes. Mechanical characterization included Vickers hardness testing, wear testing, and impact testing. The results indicate that holding time has a significant influence on the mechanical properties of ST 41 steel. The average hardness increased with longer holding time, from 162.0 VHN for untreated material to 175.2 VHN at 45 minutes, 185.5 VHN at 65 minutes, and 196.5 VHN at 85 minutes. Wear test results showed a reduction in wear rate with increasing holding time, reaching the lowest value of 0.000029 mm³/kg·m at 85 minutes. In contrast, impact strength decreased as holding time increased, from 3.302 J/mm² for untreated steel to 2.934 J/mm² at 85 minutes. These results demonstrate that longer holding time in pack carburizing enhances surface hardness and wear resistance of ST 41 steel but reduces its impact toughness. An 85-minute holding time provides the best hardness and wear resistance, although accompanied by a decrease in impact strength. This study provides a reference for optimizing heat treatment parameters to improve the performance of mechanical components, particularly gears.
Effect of Vibration-Assisted Butt Welding on Tensile Strength of Welded Joints: An Experimental Study Yusuf Rizal Fauzi; Ismail Ramli; Halman
Asian Journal of Mechanical Engineering Vol. 1 No. 2 (2025): July – December (In progress)
Publisher : Global Scientific Media

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Abstract

Vibration-assisted welding has emerged as a promising technique for improving weld quality and mechanical performance without modifying conventional welding parameters. In this experimental study, the effect of low-frequency vibration-assisted butt welding on the tensile strength of mild steel welded joints was investigated. Shielded Metal Arc Welding (SMAW) was employed to fabricate butt joints under different welding currents, vibration durations, and vibration frequencies, while maintaining consistent welding conditions. Tensile tests were conducted in accordance with ASTM E8 standards, and the corresponding microstructural characteristics of the weld zone were examined using scanning electron microscopy.The results revealed that welded joints produced with vibration assistance exhibited consistently higher tensile strength compared to non-vibrated specimens. The maximum tensile strength improvement of approximately 6% was observed in specimens subjected to higher vibration frequency and longer vibration duration. Microstructural analysis showed that vibration-assisted welding promoted grain refinement and improved microstructural homogeneity, while non-vibrated welds displayed coarser and non-uniform grain structures. The refined microstructure reduced defect formation and enhanced resistance to crack initiation, leading to improved tensile performance. The study demonstrates that low-frequency vibration-assisted butt welding effectively enhances the tensile strength of welded joints by modifying weld pool dynamics and solidification behavior. The findings highlight the practical potential of vibration-assisted welding as a simple and efficient method for improving joint strength and structural reliability in welded components.
Titanium Dental Implant Corrosion: Mechanisms, Effects, and Preventive Strategies Eko Budiyanto; Lukito Dwi Yuono
Asian Journal of Mechanical Engineering Vol. 1 No. 2 (2025): July – December (In progress)
Publisher : Global Scientific Media

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Abstract

Titanium and its alloys are widely employed in dental implantology due to their favorable mechanical properties, corrosion resistance, and excellent biocompatibility, which are primarily attributed to the formation of a stable surface titanium dioxide (TiO2) passive layer. Despite these advantages, titanium dental implants are not completely immune to corrosion in the complex and dynamic oral environment. Variations in pH, presence of aggressive ions such as fluoride and chloride, microbial activity, mechanical loading, and micromovements at the implant–bone interface can disrupt the passive oxide layer and initiate corrosion processes. This degradation may result in the release of metallic ions and particles into peri-implant tissues, potentially triggering inflammatory reactions, hypersensitivity responses, bone resorption, and implant failure. This review comprehensively discusses the fundamental mechanisms of corrosion affecting titanium dental implants, including galvanic, pitting, crevice, fretting corrosion, and tribocorrosion. The biological and clinical consequences of corrosion products on peri-implant soft and hard tissues are critically analyzed, with emphasis on their role in peri-implantitis and aseptic implant loosening. Furthermore, current preventive strategies aimed at minimizing corrosion are examined, including implant material selection, surface modification techniques, protective coatings, and optimization of prosthetic design. Understanding the interplay between electrochemical, mechanical, and biological factors governing titanium implant corrosion is essential for improving long-term implant performance and clinical outcomes.
Resource Utilization of Oilfield Sludge (Turning Waste into Value), A Review Rehman Farooq; Muhammad Usman Amjad; Rizwan Akbar; Sania Riaz; Muhammad Haris Malik; Faheem Ahmad
Asian Journal of Mechanical Engineering Vol. 1 No. 2 (2025): July – December (In progress)
Publisher : Global Scientific Media

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The demand for energy and oil extraction is being driven by the continually rising worldwide production of petroleum. The production of oily sludge, a byproduct of the extraction, transportation, storage, and refining of crude oil, has also increased as a result of this expansion. There are serious health and environmental hazards associated with oily sludge, that consists of a complex mixture of solid particles, water, petroleum hydrocarbons, and hazardous compounds. Because oily sludge contains dangerous substances like polycyclic aromatic hydrocarbons (PAHs) and heavy metals, it is categorized as hazardous waste in many nations. Effective treatment and disposal of oily sludge is a crucial environmental concern since incorrect disposal or untreated sludge can seriously contaminate land, water, and air. Over 60 million tons of oily sludge are produced annually worldwide; in recent years, China has produced more than 6 million tons. This study looks at a variety of methods for treating oily sludge, including physical, chemical, biological, and thermal processes. The study also highlights how important it is becoming to develop cost-effective and eco-friendly methods for removing oily grime. Treatments covered include pyrolysis, solvent extraction, solidification, biodegradation, incineration, and other advanced oxidation processes (AOPs). Despite the wide variety of ways, each has its own advantages and disadvantages. The study emphasizes the need for a multi-tiered approach that integrates many technologies to recover valuable resources such as petroleum hydrocarbons and reduce the environmental impact of oily sludge. The effectiveness, scalability, and cost implications of each treatment method are critically assessed in this paper

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