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Spiral bevel gears are widely used in automobiles, tractors , tanks, and other the walking mechanical drive bridge , in great demand , while still using the traditional cutting process for processing , material utilization is low, poor product quality , it is difficult to meet the rapid industrial development on the gear and the high performance requirements . Therefore , the development of a spiral bevel gear forming the new technology to increase productivity, improve product quality , it is very necessary . On the basis of open die forging process of spiral bevel gear , spiral bevel gear precision forging of new technology , no flash precision forging die design and forming process parameters were studied . The new precision forging die structure, floating die forgings produced no flash, improved material utilization . Principal stress and the upper limit of the combined method and deformation exercises were established to solve the mathematical model of the open die forging of spiral bevel gear and no flash die forging forging forming force , obtained forging forming force . UG software mold part of the three-dimensional modeling and the use of numerical simulation software DEFORM-3D spiral bevel gear flying edge precision forging process simulation . Metal forming process flow patterns, and the velocity field , strain field , stress field, temperature field in forming the different stages of the distribution and the load - stroke curve , forming load with the theoretical calculation results are very consistent . Forming process parameters were optimized , and the use of technology experiments verified it . The experimental results show that , in the initial forging temperature of 1150 ° C , presses the average operating speed of 200mm / s, good lubricating conditions , the spiral bevel gear forming a good , full toothed , the tooth root portion is excessively smooth , no collapse , folding defects , with good results. Mold structure is compact , reliable , long service life . Used forging die design , computer-aided design , numerical simulation method has some versatility , analysis , mold design to provide a reference for other gear parts , forging .
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