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Process Design for Superalloys Sheet Rotary Forming

机译:高温合金板旋转成型工艺设计

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摘要

Inconel 625 is a nickel superalloy, characterized by high fatigue strength. The alloy is resistant to a wide range of corrosive environments, including high-temperature oxidation. For this reason, it is an attractive material for the chemical, shipbuilding and aviation industries. Inconel 625 alloy is designed for plastic working. However, the significant difficulty is the appropriate process design, due to the high deformation resistance. In order to improve the plastic properties of the alloy, processing at elevated temperatures is practiced. In this work, attempts were made to implement rotary forming process of Inconel 625 superalloy. For this purpose, an experiment was designed, investigating the impact of three variables on the process - feed rate, spinning rate and heating. For the tests were used Inconel 625 metal plates in the shape of discs. Axial-symmetrical products were formed, using a spinning machine. The geometry of the products according to selected quality factors was investigated. Optimal process parameters were chosen using multivariate statistical optimization. These parameters will be used to set up processes to obtain product that meets quality requirements.
机译:Inconel 625是镍高温合金,其特征在于疲劳强度。该合金可抵抗各种腐蚀性环境,包括高温氧化。因此,它是化学,造船和航空行业的有吸引力的材料。 Inconel 625合金设计用于塑料工作。然而,由于高变形抗性,显着困难是适当的工艺设计。为了改善合金的塑性性能,实践高温下的加工。在这项工作中,尝试实施Inconel 625超合金的旋转形成过程。为此,设计了一个实验,研究了三个变量对过程 - 进料速率,纺纱率和加热的影响。对于测试的测试,使用圆盘形状的625金属板。使用纺纱机形成轴对称的产品。研究了根据所选质量因素的产品的几何形状。选择使用多元统计优化选择最佳过程参数。这些参数将用于设置过程以获得满足质量要求的产品。

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