Stamping Commemorative Medallion (as shown in the picture) with a 16 ton punch! Why can't SPCC

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Reward points:0 - From the end of the problem as well

With 16 tons of punch, ordinary SPCC steel plate blanking round cake, rush to the bottom dead center, bang!! The big wheels have been suspended for a while! Don't dare to adjust the itinerary further! I'm afraid the bed will be damaged! Is it necessary to anneal the wafers? Or is it because the punch force is not enough?