Advanced disk-forging process in producing heavy defect-free disk using counteracting dies
Source abstract
Abstract
During the conventional disk-forging, the upper die repeatedly compresses materials on the flat stationary base. As the strain distributions of the forged disk are non-uniform owing to friction and uneven temperature distribution, more uniform deformation within the entire volume is desirable to obtain sound disk free from defects. This study proposes an advanced disk-forging process in the production of a defect-free heavy disk using counteracting dies. An industry-applicable disk-manufacturing process using a conventional single die-forging process and a proposed counteracting die were characterized and compared based on variations in geometries with successive forging steps. Variations in stress, equivalent strain, and temperature were obtained through three-dimensional finite element simulations using FORGE™ software, during the disk-forging processes of cylindrical preforms. Comparison of the simulation results indicated that the proposed forging process using counteracting dies was highly effective in producing sound disks having uniform microstructure without process-induced defects. The shop-floor production was performed to validate the proposed process, and the feasibility of the process was demonstrated based on the forged disk qualities that were assessed by non-destructive examination and mechanical testing. The test data showed that the defect-free disk with uniform mechanical properties was successfully produced through the proposed forging process using counteracting dies.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Metallurgy and Material Forming · Microstructure and mechanical properties · Metal Forming Simulation Techniques
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (38)
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