Beyaz Dökme Demirin Delik İçi Tornalanmasında Kesme Parametrelerinin Optimizasyonu


Kayır Y. (Executive), Erkoçak Y.

Project Supported by Higher Education Institutions, 2019 - 2021

  • Project Type: Project Supported by Higher Education Institutions
  • Begin Date: June 2019
  • End Date: January 2021

Project Abstract

Optimization of Cutting Parameters in Boring Operation of White Cast Irons Manufacturing is a field that has been constantly explored over a period of more than 200 years. In the machining process, some sawdust is removed from the workpiece using the specified machine tool and cutting tools and the surface quality is obtained with the desired dimensions. The overall aim of machining research is to investigate workpiece-to-tool interaction for optimum cutting conditions, ensuring the best product quality and lowest machining cost. Machinability can be defined as the relative ease or difficulty of chip removal through the material. Shear strength and surface quality can be used to measure machinability in a machining operation. Since cutting forces directly affect power consumption and tool wear, it is important to optimize these forces. Thus, power consumption and tool wear can be minimized. Nevertheless, surface roughness values have been applied to reduce economic and surface geometric disturbances. Cast irons are materials that are obtained by casting and which have a significant structure and which are in a very different structure and hardness, which is widely used in the machine and manufacturing industries. According to their chemical structure and physical properties they are examined in four basic groups as gray cast iron, spheroidal graphite cast iron, temper cast iron and white cast iron. Under these groups, high hardness martensitic white cast iron (Ni-Hard) and high chromium white cast iron materials with a high alloy structure of white cast iron have high abrasion resistance and hardness, so they are used for ore crushers, grinding mill rollers, agricultural machines, pistons, conveyors, pumps, gears and mining It is frequently used in fields such as industry. In this study, different cutting materials (CBN, CERAMIC, CERMET) with different boring materials (steel bar, carbide bar, anti vibration bar) and different lengths of boring (L / D ratio) were used in boring operation in turning with high hardness martensitic white cast iron (Ni Hard) and high chromium white cast iron materials which are difficult to process, it is aimed to determine the optimum machining conditions by obtaining the optimum cutting force, surface roughness and tool wear by examining the cutting parameters, (V,f,a) cutting force, surface roughness and the effects of tool wear on them experimentally and the effect of cutting temperature. In addition, the effects of the test results on the cut off parameters of the test results will be determined using the taguchi method as a result of the experiments, and statistical equations will be obtained and the unknown values will be obtained without experimenting. As a result, it is aimed to spread the usage areas of these materials, which are difficult to machinability with optimum values that can be obtained, and contribute for knowing and to contribute to the literature.