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Photographs of drawpieces formed at Δz = 0.8 mm: SPIF on the Al side, sample no. 7 (a,b), sheet metal formed on the Cu side, sample no. 8 (c,d) and photographs of draw pieces formed at Δz = 1.2 mm: SPIF on the Al side, sample no. 15 (e,f), sheet metal formed on the Cu side, sample no. 16 (g,h).
