No abstract

No abstract

Geometrical error due to twist springback is one of major defects found in the near net or net shape part. It becomes more critical for complex part such as an Autonomous Underwater Vehicle (AUV) propeller blade. In this study, twist springback was quantified by comparing the blade and the die profiles obtained from commercial optical technique namely Alicona system. The results show a different pattern, where the twist springback becomes larger as the twist angle increases moving to the tip. The results show a strong agreement with the experiment.

No abstract

Tooling plays important role in ensuring precision of cold forging part. In this study, a modular approach was proposed in the design of the tooling in the production of Autonomous Underwater Vehicle (AUV) propeller blade. Based on the conceptual design and optimization of the process sequence, the tooling was designed. As a result, the precision of the forged blade is still within the acceptable level.