Browsing by Author "Karataş, Meltem Altın"
Now showing items 1-12 of 12
-
Analysis of surface roughness and flank wear using the taguchi method in milling of niti shape memory alloy with uncoated tools
Altaş, Emre; Gökkaya, Hasan; Karataş, Meltem Altın; Özkan, Derviş (Mdpi, 2020)The aim of this study was to optimize machining parameters to obtain the smallest average surface roughness (Ra) and flank wear (Vb) values as a result of the surface milling of a nickel-titanium (NiTi) shape memory alloy ... -
Experimental investigation of the effects of aging and cryogenic treatments on the mechanical properties of superelastic nickel-titanium shape-memory alloys
Güven, Sedat; Karataş, Meltem Altın; Gökkaya, Hasan; Akınay, Yüksel (SAGE Publications Ltd, 2022)In this study, electropolishing and two different heat treatments were applied to wires made of superelastic nickel-titanium (NiTi) shape-memory alloy (SMA) and their mechanical properties and stress-induced deformations ... -
Investigation of friction performance and surface integrity of aramid fiber-reinforced polymer matrix composite
Karataş, Meltem Altın (Wiley, 2021)Because of its superior properties, aramid fiber-reinforced polymer (AFRP) composite material is used in many sectors including the aerospace, automotive, and defense industries and maintains a stable and reliable coefficient ... -
Investigation of the effect of AWJ drilling parameters for delamination factor and surface roughness on GFRP composite material
Karataş, Meltem Altın; Gökkaya, Hasan; Akıncıoğlu, Sıtkı; Biberci, Mehmet Ali (Emerald Group Publishing Ltd, 2022)Purpose The purpose of this study is to optimize processing parameters to get the smallest average surface roughness (Ra) and delamination damage (F-d) values during drilling via abrasive water jet (AWJ) of the glass ... -
Optimization of machining parameters for abrasive water jet drilling of carbon fiber-reinforced polymer composite material using Taguchi method
Karataş, Meltem Altın; Gökkaya, Hasan; Nalbant, Muammer (Emerald Group Publishing Ltd, 2019)Purpose The aim of this paper is to optimize the machining parameters to obtain the smallest average surface roughness values during drilling of the carbon fiber-reinforced polymer (CFRP) composite material with abrasive ... -
Optimization of machining parameters for kerf angle and roundness error in abrasive water jet drilling of CFRP composites with different fiber orientation angles
Karataş, Meltem Altın; Motorcu, Ali Riza; Gökkaya, Hasan (Springer Heidelberg, 2020)In this study, carbon fiber-reinforced polymer (CFRP) composites with three different fiber orientation angles (M1: [0 degrees/90 degrees](s), M2: [+ 45 degrees/- 45 degrees](s), and M3: [0 degrees/45 degrees/90 degrees/- ... -
Research on the manufacture and strength of the innovative joint of FRP machine parts
Nekrasov, Serhii; Zhyhylii, Dmytro; Dovhopolov, Andrii; Karataş, Meltem Altın (Elsevier Sci Ltd, 2021)This paper is devoted to a detachable fiber-reinforced plastic (FRP) machine parts joint of a new type along with its pull-through strength investigation. The relevance consists of a new mechanical processing technology ... -
A review on machinability of carbon fiber reinforced polymer (CFRP) and glass fiber reinforced polymer (GFRP) composite materials
Karataş, Meltem Altın; Gökkaya, Hasan (Elsevier Science Bv, 2018)Fiber reinforced polymer (FRP) composite materials are heterogeneous and anisotropic materials that do not exhibit plastic deformation. They have been used in a wide range of contemporary applications particularly in space ... -
Study on delamination factor and surface roughness in abrasive water jet drilling of carbon fiber-reinforced polymer composites with different fiber orientation angles
Karataş, Meltem Altın; Motorcu, Ali Riza; Gökkaya, Hasan (Springer Heidelberg, 2021)Carbon fiber-reinforced polymer (CFRP) composites are used in aerospace applications because of their superior mechanical properties and light weight. Avoiding damage in the machining of CFRP composites is difficult using ... -
Surface integrity of NiTi shape memory alloy in milling with cryogenic heat treated cutting tools under different cutting conditions
Altaş, Emre; Karataş, Meltem Altın; Gökkaya, Hasan; Akınay, Yüksel (Springer, 2021)In this study, the surface integrity of nickel-titanium (NiTi) shape memory alloys (SMAs) was investigated after face milling processes with cryogenically treated/untreated cemented carbide cutting tools at the conditions ... -
Taguchi optimization of surface roughness in the turning of Hastelloy C22 super alloy using cryogenically treated ceramic inserts
Akıncıoğlu, Sıtkı; Gökkaya, Hasan; Akıncıoğlu, Gülşah; Karataş, Meltem Altın (Sage Publications Ltd, 2020)Cryogenic treatment has been used in recent years to improve the performance of cutting tools. This study evaluated the machinability of a nickel-molybdenum-based super alloy using cryogenically treated (-80 celcius and ... -
Wire EDM cutting of inconel 718 nickel-based superalloy: Kerf and MRR analysis
Karataş, Meltem Altın (Emerald Group Publishing Ltd, 2022)Purpose Inconel 718 (IN718) is a high-performance nickel-based superalloy with high oxidation-corrosion-temperature resistance, high strength (tensile, fatigue, creep and rupture), durability, toughness, hardness and ...
