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[VA/VE Case] Change in the shape of the seat hole tear

Proposing a shape that ensures functionality without increasing man-hours! A case where a smooth transition to mass production was achieved.

We received a consultation from the manufacturer regarding the improvement of safety during assembly work, and we would like to introduce a case where we changed the shape of the counterbore hole to prevent tearing. In a flange-shaped part, the counterbore hole for the fixing bolt interfered with the center hole and became dangerously thin and knife-like, raising concerns about deformation and other issues. We modified the counterbore hole for the fixing bolt by cutting it into a U-shape towards the center hole, ensuring that no thin, knife-like edges remained. [Case Overview] ■ Issue: The counterbore hole for the fixing bolt interfered with the center hole, creating dangerously thin, knife-like edges and raising concerns about deformation and other issues. ■ Result: The counterbore hole for the fixing bolt was cut into a U-shape towards the center hole, eliminating any thin, knife-like edges. *For more details, please visit our website or feel free to contact us.