| As one of the most basic motion and power transmission parts, spiral bevel gear is widely used in the aerospace industry, construction machinery, shipbuilding and automobile, and which is a large and broad-based part. Spiral bevel gear precision forging compared to it traditiongal machining has many advantages, such as energy saving, material saving and high efficiency. On the one hand, a reasonable and continuous metal flow lines will be formed along the tooth contour during the precision forging, which help improve the internal quality of gear; on the other hand, smooth transition will be formed on the root of the tooth and it helps improve the quality of tooth surface, which greatly improved the gear performance.Based on DEFORM-3D numerical simulation software, this paper studied the influence of the main process parameters:blank size, initial forging temperature and forming speed on spiral bevel gears forging, selecting the optimal process parameters through comparative the simulation results:blank size0120mm×h3lmm, initial forging temperature1100℃, forming speed10mm/s. Based on the selected process parameters, this paper studies the grid changes, the stress and strain distribution, temperature distribution, metal flow and stroke-load characteristics of Gear Forging. Get the mechanical properties and the metal flow pattern of spiral bevel gear precision forging process, which provide a theoretical for the process of production and promotion practices.According to Archard adhesive wear model we study the effects of mold preheat temperature and precision forging speed on the amount of mold wear and provide the quantitative formulas. |
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