A novel taguchi-ocra optimization framework for incremental sheet metal forming of miniature conical cups with multi-response validation and cross-geometry applicability.

Among the factors, feed rate (A) is highly significant for forming time (F = 55.50, p = 0.001) and also influences WA, TR, Ra, FT, and SB ( p ≤ 0.04), though it is not significant for Pc ( p = 0.10).

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