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Optimizing hot forging parameters for gas turbine blade formation: a comprehensive study

Abstract

This study focuses on optimizing the forming process of gas turbine blades using the hot forging method. Initially, the parameters that influence the strength, dimensional accuracy, and production cost of a Ti-6Al-4 V compressor blade for gas turbines are identified. These parameters are assessed through a two-level isothermal forging process and evaluated using the DFORM-3D software, a forging process simulator. After analyzing the preliminary findings, the parameters with the greatest impact on objectives are pinpointed and subjected to further testing within a narrower range. Once the optimal parameter range is determined, the blade forging dies are designed and fabricated based on the latest insights. Post-production, the blade undergoes relevant tests, and its performance is compared against the desired range. The alignment between real-world conditions and optimization results validates the initial assumptions. The study highlights the significant influence of forging temperature, pressing velocity, preform shape, and final die separation line on the optimization process, as evidenced by the results.

article Article
date_range 2024
language English
link Link of the paper
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Featured Keywords

Hot forging
Gas turbine blade
Preform geometry
Isothermal forging
Optimization process
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