Doğan Acar

Doğan Acar
Karadeniz Technical University · Department of Mechanical Engineering

Master of Science

About

9
Publications
1,593
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
25
Citations

Publications

Publications (9)
Article
Full-text available
In this study, an aerospace-grade Ti6Al4V alloy was coated by micro-arc oxidation (MAO) and electro spark deposition (ESD) methods to investigate their effect on solid particle erosion performance. The surface morphology and mechanical properties of coatings were characterized by SEM and nanoindentation, respectively. Solid particle erosion perform...
Article
The formability of friction stir welded (FSW) AA7075-O aluminum alloy sheet specimens was tested under a range of warm uniaxial and biaxial loading conditions. To study the effect of FSW process conditions on formability, four groups of specimens were prepared using a range of FSW parameters. Two rotational speeds (500 and 1000 rpm), four travel sp...
Book
Full-text available
ICATES 2019 provides an ideal academic platform for researchers to present the latest research findings and describe emerging technologies, and directions in Engineering and Natural Sciences issues. The conference seeks to contribute to presenting novel research results in all aspects of Engineering, Technology and Natural Sciences. The conference...
Article
Full-text available
Ultrasonic additive manufacturing (UAM), different from most of additive manufacturing technologies, enables manufacturing of composite parts consisting of two or more materials. The current study focuses on mechanical characterization of Al-Ti laminated composites. For this purpose, first, Al-Ti laminates were built onto a 1.527-mm-thick aluminum...
Conference Paper
Full-text available
Solid particle erosion behavior of AA 6061 aluminum alloy was evaluated using a recently developed erosion wear test system. Wear tests were performed under different impact angles (20°, 30°, 45°, 60°, 90°) and velocities (74, 90, 150, 195 m/s) at ambient temperature. Alumina particles with 50 µm in dimension were used as erodent. Results showed th...
Article
Full-text available
Warm hydromechanical deep drawing (WHDD) has increasingly been implemented by automotive industry due to its various benefits including mass reduction opportunities in auto body-in-white components and improved formability for lightweight alloys. In the first part of the current study, WHDD of AA 5754-O was studied. In order to obtain the highest f...
Conference Paper
Full-text available
A challenge to conduct the most accurate FE simulations in Warm Hydromechanical Deep Drawing (WHDD) process is to predict temperature condition of the blank which was held between the heated dies and cooled punch. This is possible by knowing effects of thermal coefficients in the FE analysis of WHDD process and modeling of the heat transfer between...
Article
This study intended to establish finite element analysis (FEA) model of warm hydro mechanical deep drawing process (WHMD) of cylindrical cups by means of commercial FEA package Ls-Dyna The validity of established FEA model is verified by means of WHMD experiments through several studies. It was noted that the established model successfully simulate...

Projects

Projects (3)
Project
This project aims to investigate the ballistic performances of relatively new armour steels (e.g. Ramor 500, Ramor 550, Armox Advance) under various conditions such as monolithic, double-layered, pre-perforated plates against different ammunition. The ballistic tests were conducted at Otokar Automotive & Defence Industry Corp. Ballistic Test laboratory.