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THERMOPHYSICAL PROPERTIES OF CAST IRON USED IN THE MANUFACTURE OF BRAKE DISCS


This paper presents the results of measurements of thermophysical properties of automotive brake discs made from gray cast iron. The samples were tested before and after operation in the braking system. Thermal con...

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DETERMINATION OF THERMAL CONDUCTIVITY OF SELECTED TYPES OF DUCTILE IRON (SPHEROIDAL GRAPHITE/CAST IRON) BY MEANS OF THERMAL DIFFUSIVITY MEASUREMENTS WITH LASER-FLASH METHOD


This paper presents the results of measurements of thermal conductivity coefficient as a function of temperature for two species of spheroidal cast iron by using one of the most modern experimental sets LFA 427 (La...

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ANALYSIS OF THE STATE OF STRESS IN CAST BODIES, COVERS AND WEDGES OF THE WEDGE GATE VALVES USED IN GAS NETWORKS


Numerical analysis was carried out to establish the operating stress distribution in softsealed gate valves cast from ductile iron EN-GJS-400-15 for the gas network of PE pipes. The analysis was carried out with ANSYS software, based on data and d...

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SCIENTIFIC DATABASES CENTER AS A BASIS AND SUPPORT FOR RESEARCH IN THE FOUNDRY RESEARCH INSTITUTE. IMPLEMENTATION OF IT SYSTEM


The paper presents a range of functionality of a copyright application, the main objective of which was to create an information database and the database management system. The system was developed for the implementation of strategies to optimize...

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APPLICATION OF THE FLOW 3-D SOFTWARE FOR SIMULATION OF THE SPHEROIDAL IRON CASTING AND SOLIDIFICATION. PART 2


A simulation analysis was carried out on the casting and solidification of EN-GJS-400-15 spheroidal iron for production of soft-sealed wedge gates for PE pipe gas networks. The analysis was made in the Flow-3D software. Based on the engineering do...

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SIMULATION RESEARCH OF THE FLOW OF THE MEDIA THROUGH A BALL REFLUX VALVE AT VARIOUS DENSITIES OF THE FLOATING BALL WITH THE USE OF FLOW-3D SOFTWARE


Modernisation works aiming at lowering the weight andincreasing performance of the range of ball reflux valves include also, among other things, lowering the weight (density) of floating balls being an important element of this type of valve...

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Application of topological optimisation in forming of cast cellular structures


Cellular structures are critical components which perform as energy absorbers in the defense, aerospace and automotive industries. Simultaneous application of topological optimisation algorithms for strength forming, solidification simulation soft...

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Simulation of the volume and distribution of air entrapped by liquid metal in a test mould for the pressure die casting process


Computer programs are now a common tool aiding the engineer’s work on structure design. The design of foundry moulds used in the pressure die casting process, based on the casting design and effectively utilising the ability to create 3D ima...

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Evaluation of selected parameters of pressure casting on the structure of silumin AlSi9Cu3


The article presents the results of investigations of the effect of selected casting parameters on the structure of casts made under high pressure by means of the casting machine produced by BÜHLER, type H630-B, out of the AlSi9Cu3 alloy from...

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Development and manufacturing of casting technology for crawler vehicle suspension used in wetlands


The modern designing techniques and development procedures requires the use of advanced integrated methods. That kind of approach requires the involvement of series of steps which leads to the logical work stream known as Integrated Computational ...

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Application of 3D printing technology to make the core of casting mould and dimensional control using a 3D scanner


The aim of the work was to develop and model individual elements of casting technology for the casting of a ventilated brake disc using CAD program: SolidWorks, followed by printing a core using a 3D LS ONE printer from Sand Made Lt...

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The application of CAD and CAE software to design and selection of foundry technology for casting of grey cast iron – brake disc


Describes the process of casting technology design that produces an iron casting brake disc using CAD and CAE tools. For design calculations of the individual filling and ventilating systems uses the formulas commonly available in the literature f...

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Quality check of H282 castings by Computed Tomography (CT) technique


As a part of the international project carried out at the Foundry Research Institute in Krakow in cooperation with Energy Industries of Ohio, anopen induction furnace melting technology and gravity casting of nickel superalloys have been developed...

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Thermophysical properties of 30MCDB64-M and 30NSCDV86-M cast steel in cast condition


This paper presents the results of complex investigations into the thermophysical properties of 30MCDB64-M and 30NSCDV86-M cast steel, including temperature conductivity, thermal conductivity, specific heat, thermal expansion and the change of den...

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Testing of mechanical properties and computer simulations of the manufacturing process of castings obtained in gypsum moulds from high-strength AlZnMgCu aluminum alloys


The paper presents an attempt to assess the mechanical properties of high-strength AlZnMgCu aluminium alloy samples cast in gypsum moulds. The first stage of the study involved the use of computer simulations to select the opti...

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