Surface Integrity Cutted for Several Cutting Method
Milton Fabian Coba-Salcedo
Published 2024-04-08
Keywords
- Surface integrity,
- cut channel,
- hardness,
- surface roughness,
- microstructure
- cut heat affected zone,
- Comparison of cutting methods,
- Metallographic aspect,
- Cutting,
- Surface quality ...More
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Copyright (c) 2024 Revista UIS Ingenierías
This work is licensed under a Creative Commons Attribution-NoDerivatives 4.0 International License.
Abstract
When selecting materials, different decisions must be made to choose the appropriate material according to the application, the properties of the material determine its final use, in this context, when selecting a material, the different processes to which it will be subjected before reaching its final application must be considered, because these processes can cause transformations in the different properties. In the case of steels, it must be taken into account whether the element will be subjected to any heat treatment or the method with which it will be cut, since it influences the surface properties and microstructure of the material. This article describes the study that was carried out to analyze the hardness, roughness and microstructure of the cutting channel in an ASTM-A36 steel, in a state of supply to take these values as a reference for subsequent procedures. It is proposed to cut the material with cutting methods conventionally used in the metalworking and construction industry, and also cut with other non-conventional processes used to a lesser extent in the industry. Similar cuts are made to maintain the homogeneity of the test and to analyze the cut faces in each specimen in a similar way. The specimens are cut with conventional cutting methods (milling, oxyfuel and cutting machine) and non-conventional methods (wire EDM and plasma), maintaining similar cutting and working parameters as far as possible. Subsequently, the cut surface - cutting channel - of each of the specimens is analyzed by measuring hardness, roughness and taking microscopic images of its microstructure. These tests allow quantifying the changes that occur in the material depending on the cutting method used and defining, according to each method, how much it can affect the final application of the material. When the results are obtained, comparative graphs are made between all the methods used and the differences found between them are established. From these results and comparisons, the conclusions of the study are generated.
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