The Experts below are selected from a list of 27 Experts worldwide ranked by ideXlab platform
Rakocija Filip - One of the best experts on this subject based on the ideXlab platform.
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Forging DIE CONSTRUCTION FOR PRODUCTION OF CV JOINT OUTER SHELL D_FR_2019
Josip Juraj Strossmayer University of Osijek. Mechanical Engineering Faculty in Slavonski Brod., 2019Co-Authors: Rakocija FilipAbstract:U uvodnom dijelu ovoga rada dan je kratak opis teorije oblikovanja metala deformiranjem s osnovnim podjelama, te je opisan razvoj tehnologije kovanja kroz povijest i postotak primjene navedene tehnologije u vodećim svjetskim i europskim zemljama u proizvodnji otkivaka. Tehnologija kovanja u drugom dijelu rada je podijeljena na slobodno kovanje i kovanje u ukovnjima te je dan detaljan opis navedenih postupaka uz glavne prednosti i nedostatke. Također opisana su i navedena sva pravila i najvažniji procesi o kojima je potrebno voditi računa prilikom proračuna i konstrukcije otkivka koji je u ovom slučaju kućište homokinetičkog zgloba. Na kraju u zadnjem teorijskom dijelu ovoga rada navedeni su i opisani kovački strojevi i peči koji se mogu koristiti za izradu odnosno predgrijavanje navedenog otkivka. U posljednjem dijelu ovoga rada izvršen je proračun potrebnih gravura, stroja za kovanje, dimenzija ukovnja i ostalih potrebnih podataka, te je na osnovu njih izvršena konstrukcija alata za kovanje sa svim pripadajućim dijelovima.In the introductory part of this work, a short description was given about a theory of Forging steel using a deforming technique with it’s basic classification. This part also describes the development of the Forging technique through history and the percentage of implementing these techniques in leading global and European countries in manufacturing forged steel. Technology of Forging steel in the second part of this work is separated on free Forging and die Forging and a detailed description of these procedures is given with it’s main advantages and disadvantages. Likewise, all rules and most important processes are described which should be taken into account during the calculation and construction of forged product, which in this case is the housing of the homokinetic joint. In the last theoretical part of this work Forging Machines and ovens are mentioned and described which can be used to make or preheat the aforementioned forged steel. In the final part of this work, the calculation of the required gravure, Forging machine, dimensions of the Forging die and other necessary data was made and based on them the construction of a Forging tool with all of it’s associated parts was carried out
Pavkić Marija - One of the best experts on this subject based on the ideXlab platform.
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CONSTRUCTION OF Forging DIE FOR PRODUCTION OF TRIMMER CRANKSHAFT D_MP_2019
Josip Juraj Strossmayer University of Osijek. Mechanical Engineering Faculty in Slavonski Brod., 2019Co-Authors: Pavkić MarijaAbstract:U radu je općenito opisana tehnologija kovanja, koja obuhvaća slobodno kovanje i kovanje u ukovnju. Posebno je opisana konstrukcija ukovnja za kovanje koljenastog vratila trimera koja opisuje odabir same tehnologije kovanja, proračun potrebnih gravura i dimenzija ukovnja. Uvodni dio sadrži općenito opisan nastanak i primjenu tehnologije kovanja. U drugom poglavlju, kovanje, opisana je kovačka proizvodnja, te podjela kovanja na slobodno kovanje i kovanje u ukovnju. Objašnjena su tehnološka rješenja za izvedbu ukovnja i proces izvođenja tehnologije kovanja. Ukratko su opisani i kovački strojevi. Treće poglavlje, određivanje tehnologije kovanja, opisuje odabir grupe otkivaka, proračun volumena i dimenzija početnog materijala (sirovca), klasifikaciju otkivka, proračun rada deformacije, proračun mase padajućih dijelova kovačkih batova, te provjeru po Besheu. Četvrto poglavlje, proračun potrebnih gravura ukovnja, obuhvaća proračun dimenzija gravure za sabijanje, prethodne gravure i završne gravure. Peto poglavlje, konstruiranje ukovnja, sadrži proračun dimenzija samog ukovnja, odnosno visine, širine i duljine ukovnja, elemenata ukovnja, te odabir materijala za izradu ukovnja.This paper describes Forging technology in general, which includes free Forging and closed die Forging. Construction of Forging die for Forging of trimmer crankshaft, which describes choosing Forging technology itself, calculation of required die impressions and Forging die dimension are specifically described. The introductory part generally describes the emergence and application of Forging technology. In the second chapter, Forging, Forging production, and the division of the Forging on free Forging and closed die Forging is described. Tehnological solutions for making of Forging die and process of Forging technology are also explained. Forging Machines are briefly described. Chapter three, determination of Forging technology, describes the selection of forged steel group, calculation of the starting material volume and dimensions, classification of forged steel, calculation of the work deformation, calculation of the weight of falling parts of Forging hammers, and the check by Beshe. Chapter four, calculation of required die impressions, includes the compression, previous and final die impression calculation. Chapter five, construction of Forging die, contains the calculation of dimensions of Forging die itself, the height, the width, and length, calculation of Forging die elements, and the selection of the manufacturing material
V I Sakalo - One of the best experts on this subject based on the ideXlab platform.
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solid modeling and dynamic analysis of mechanisms of press Forging Machines
Procedia Engineering, 2017Co-Authors: V V Telegin, A M Kozlov, V I SakaloAbstract:Abstract Based on the example of AV1818 machine for cold die Forging the paper considers the matters of complex use of solid modeling systems (Autodesk Inventor Professional) and the dynamic analysis of mechanisms (DAM) to solve problems associated with the performance forecasting of forge-and-pressing equipment at the stage of their design. The dynamic processes in the mechanisms, primarily, the dynamic forces and positioning accuracy of units are defined based on the models representing systems of point masses connected with elastic ties. Basic parameter computation for the objects of models (units of mechanisms or their fragments): inertia (mass or inertia moment) and elasticity (rigidity at strain-compression, bend or torsion) is a rather complicated task solved with the methods of theoretical mechanics and resistance of materials. The procedure suggested in the work allows increasing the accuracy of calculations and decreasing their complexity at the expense of the final element method (FEM) to solid models of these objects.
Martin Zahalka - One of the best experts on this subject based on the ideXlab platform.
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modal analysis of hydraulic press frames for open die Forging
Procedia Engineering, 2014Co-Authors: Martin ZahalkaAbstract:Abstract Dynamic behavior of the Forging Machines is necessary to explore due to the increasing of speeds on large Forging hydraulic presses for open die Forging. The paper describes the modal analysis of two selected presses, which represent the most common designs of hydraulic presses for Forging. The first press is with double-column frame CKV 50 with the force 50MN and the second one is with four-column frame CKV 170 with the force 170 MN. Further are described the simulations of oscillation, which was excited by time-dependent work force. Results of analysis are compared with measurement in the real operation.
J J Yang - One of the best experts on this subject based on the ideXlab platform.
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an integrated approach in design tooling setting up and timing of Forging transfer Machines
CIRP Annals, 1998Co-Authors: P F Bariani, Guido Berti, L Dangelo, J J YangAbstract:Abstract Multi-station Forging Machines with automatic work transfer between stations permit very high production rates to be reached, but considerable time and effort by skilled personnel must be spent in workplanning and their setting up and timing. The paper presents an integrated approach to the computer-assisted design of the tooling systems and identification of appropriate setting conditions and timing for multi-station presses to be used in cold, warm and hot Forging. The approach is based on (i) the classification of possible configurations of punch- and die-side tool subassemblies, (ii) the automatic retrieval of the tool-holder assembly configuration for the specific station of the press, (iii) the assembly rules and automatic scaling and fitting of individual tool components and (iv) the animation -with check for interference- of die, punches, slugs, grippers and ejectors according to the kinematic model of the press.