MATERIAL SELECTION IN GEAR

May 11th, 2015
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Abstract. Materials and process selection are key issues in optimal design of industrial products. Substituting and selecting materials for different machining parts is relatively common and often. Material selection is a difficult and subtle task, due to the immense number of different available materials.

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MATERIAL SELECTION IN GEARRadinko GLIGORIJEVIJeremija JEVTIDjuro BORAKAbstract. Materials and process selection are key issuesin optimal design of industrial products. Substituting andselecting materials for different machining parts isrelatively common and often. Material selection is adifficult and subtle task, due to the immense number ofdifferent available materials.From this point of view paper deal with a set of majorgear design criteria which are used for gear materialselection. The main gear design criteria are: surfacefatigue limit index, bending fatigue limit index, surfacefatigue lifetime index, bending fatigue lifetime index, wear resistance of toots flank index and machinability index.Using computer allows a large amount of information tobe treated rapidly. One the most suitable model, forranking alternatives gear materials, is ELECTRA, whichusing a multiple criteria, which all material performanceindices and their uncertainties are accounted forsimultaneously.Key words: gear, material, selection1. INTRODUCTIONMaterials and process selection are key issues in optimaldesign of industrial products. Recently many materialswhich have long been used in industry are being replacedby newer materials in order to meet demands of costreduction and better performance [1,2,3].In the manufacture of mechanical parts, knowledge ofmaterial properties, cost, design concepts and theirinteractions is required. The large number of availab

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