Analysis of Physical Effects in Cutting Machining

Žitňanský, Ján; Žarnovský, Jozef; Ružbarský, Juraj

doi:10.4028/www.scientific.net/amr.801.51

Cited by 9 publications

(2 citation statements)

References 1 publication

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“…The quality of machined surface cannot be globally assessed on the base of only one quality parameter. 16–18 In practice, the quality of machined surface is often assessed solely on the basis of the roughness parameters ( Ra, Rz , and Rq ). 19 However, these qualitative indicators in themselves are unable to include the important parameters relating to changes in the microstructure.…”

Section: Methodsmentioning

confidence: 99%

Prediction of the heat-affected zone of tool steel EN X37CrMoV5-1 after die-sinking electrical discharge machining

Straka

Hašová

2016

Proceedings of the Institution of Mechanical Engineers, Part B:

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This article describes the results of the experimental research on the heat-affected zone of the subsurface layers of eroded surface on medium-alloyed samples of steel EN X37CrMoV5-1 (W.-Nr. 1.2343) which occurs in die-sinking electrical discharge machining with Cu electrode. It assesses the direct effect and consequences of the heat-affected zone on the final quality of the machined surface. The aim of the experiments was to contribute to the knowledge database defining the influence of the main technological parameters of electrical discharge machining on the microhardness changes and the total depth of the heat-affected zone of the subsurface layers of experimental samples. The results of the experimental measurement were transformed into the mathematical models allowing simulation and prediction of the final quality of the machined surface after die-sinking electrical discharge machining tool steels with Cu electrode. The purpose of the mathematical models is to determine the optimal combination of process parameters and thereby achieve the desired quality of the products produced by this advanced technology.

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Section: Methodsmentioning

confidence: 99%

Prediction of the heat-affected zone of tool steel EN X37CrMoV5-1 after die-sinking electrical discharge machining

Straka

Hašová

2016

Proceedings of the Institution of Mechanical Engineers, Part B:

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“…Thus, when reassembling and dismantling, its position could be changed easily. It is convenient to burn the coordinate network directly into the working pad, which will help you to position the workpiece correctly during the work [3,10,16,17].…”

Section: Worktop Adjustmentmentioning

confidence: 99%

Research and Development of Laser Engraving and Material Cutting Machine from 3D Printer

Durna

Fries

Hrabovský

et al. 2020

Management Systems in Production Engineering

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This article deals with the adjustment of a 3D printer for laser engraving and material cutting. The print head can be fitted with a solid laser diode module, which achieves a compact size while retaining its useful power. Two paths lead to the use of such a concept. It is possible to equip the existing print head with a module, which also brings a number of disadvantages such as, for example, the reduction of the printing space or the need for a suitable mounting design. A more elegant solution is to consider this in the design of a 3D printer and design a system to exchange the print heads for 3D printing and laser engraving. Such a solution allows full utilization of the workspace and simple installation of the effector for the required type of work. According to the installed power of the laser diode, it is possible not only to engrave but also cut material such as thin wood, veneer or acrylic glass. The use of such a machine is not only for graphic elements but for the creation of various stencils, boxes or simple models, which can be made up of plastic-burning pieces. The laser module is controlled by a driver, which is designed for the device. This is connected to a 3D printer control board. It is, therefore, necessary for the control board to have at least two pins, which can be controlled after adjusting the control firmware. Most laser modules are normally equipped with an adjustable lens, which is used to concentrate the focus of a laser for the given distance against the worktop. Thus, the modified 3D printer can perform its function as a multi-purpose CNC machine, while a basic platform similar for both devices is used.

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Influences on plasma cutting quality on CNC machine

Kudrna

Fries

Merta

2019

Multidisciplinary Aspects of Production Engineering

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This article discusses plasma cutting technology and its influences on the quality of the resulting cut. Plasma or a plasma arch consists of positive and negatively charged particles, excited and neutral atoms and molecules. As it contains free particles, it is electrically conductive and thus subject to the effects of the electrical and magnetic field. The basis of CNC machine design is described in the article, which has at least 3 axes (x, y, z), but there are also more technologically demanding applications, such as pipe cutting, profile and cutting using chamfer to prepare surfaces for welding, where these multi-axis devices are frequently used. The principle of plasma cutting and the plasma cutting phase is described in this article. The materials that can be divided by a plasma arc are described in detail, including graphs displaying the dependence of sheet thickness on the cutting speed. The article describes and lists the gases that are used in plasma-arc cutting, such as oxygen, argon, hydrogen and nitrogen. Important components of plasma cutting technology are the parameters that can be adjusted and set before the cutting so that the cut is of good quality. The most comprehensive chapter deals with the influences that affect plasma cutting quality. Cutting quality can be influenced by a number of factors. Everything starts with the proper choice of a CNC machine and a plasma source. The quality also depends on the expertise and experience of the machine operator and the setting of the plasma cutting parameters. This issue of influences on the plasma cutting quality is based on long-term experience in the field of the thermal cutting process.

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Analysis of Physical Effects in Cutting Machining

Cited by 9 publications

References 1 publication

Prediction of the heat-affected zone of tool steel EN X37CrMoV5-1 after die-sinking electrical discharge machining

Prediction of the heat-affected zone of tool steel EN X37CrMoV5-1 after die-sinking electrical discharge machining

Research and Development of Laser Engraving and Material Cutting Machine from 3D Printer

Influences on plasma cutting quality on CNC machine

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