Hakan Yurtkuran

• Master of Engineering
• Lecturer at Bozok University

Due to extensive distribution and huge demand of energy efficient processes, the energy-saving of machining processes draws more and more attention, and a significant variety of methods have evolved to prognosis or optimise the energy consumption in machining operations. Similarly, the estimation of power consumption-cutting conditions relationship...

This study aims to optimize and model the resultant cutting force (Fr) and surface roughness (Ra) in the cleaner milling of PH13-8Mo stainless steel, which is extremely difficult to machine due to its high technical properties. The impacts of dry, minimal quantity lubrication (MQL) and cryogenic (Cryo) environments on the Fr and Ra were investigate...

Milling of pH group steels in a sustainable environment

Metalworking fluids (MWFs) play a crucial role in machining processes by lubricating and cooling cutting tools, reducing friction, and improving overall machining efficiency. These fluids can be classified into various types, including cutting oils, water-based fluids, and semi-synthetic or synthetic fluids. Cutting oils are often mineral-based, pr...

17-4PH steel, which has the perfect combination of corrosion resistance and high mechanical properties, is especially preferred in defense and aerospace applications, but its machinability is poor. Thus, an extensive research has been conducted on its milling under sustainable cutting regimes (dry and minimum quantity lubrication_MQL) to contribute...

17-4 PH steel is a martensitic precipitation hardening stainless steel with an excellent convenience of good corrosion resistance and high mechanical properties. At the same time, it has been determined from the literature that very little research has been done on the milling of this steel, which is one of the materials that are difficult to proce...

Superalloys are a group of materials that are commonly used in aerospace applications and are also called high temperature materials, as they have superior wear and corrosion resistance. Ni-based superalloys are used more often than Ti alloys in the aerospace industry as they have mechanical and physical properties such as superior temperature resi...

In this study, The effect of aging heat treatment on machinability of AA7075 aluminum alloy is investigated. Turning experiments were performed on the aluminium test pieces obtained commercially as T6 heat treated and the aged test materials to investigate the effects of cutting tool tip radius and cutting parameters on surface roughness. Machining...

X40CrMoV5-1 hot work tool steel is commonly used in injection and extrusion molds and also manufacturing of parts requiring high temperature, toughness and abrasion resistance. On the other hand, the preference of hard turning instead of grinding reduces the production time and cost, while improving the fatigue strength of the part in the case of p...

The production time and cost of machine parts decrease while fatigue strength increase in manufacturing of cylindrical parts from hardened steels when hard turning is preferred instead of grinding. X40CrMoV5-1 hot work tool steels are commonly used in manufacturing of injection and extrusion mold, and also in process which require high toughness an...

This study focuses on predictive model for Ra and optimization of cutting conditions in high speed hard turning of X40CrMoV5-1 steel by CBN insert. Cutting speed, feed rate, depth of cut and coating condition have been considered as cutting parameters. The experiments have been performed in CNC lathe according to Taguchi L32 orthogonal array. The f...