US 12,390,848 B2
Mold for hot forming of sheet materials
Leonardo Daniele Scintilla, Calolziocorte (IT); Paolino Zica, Calolziocorte (IT); Annalisa Mirabile, Calolziocorte (IT); Marco Fontana, Calolziocorte (IT); Donato Sorgente, Calolziocorte (IT); and Andrea Lombardi, Calolziocorte (IT)
Assigned to FONTANA PIETRO S.P.A., Calolziocorte (IT)
Appl. No. 18/255,711
Filed by FONTANA PIETRO S.P.A., Calolziocorte (IT)
PCT Filed Dec. 2, 2021, PCT No. PCT/IB2021/061217
§ 371(c)(1), (2) Date Jun. 2, 2023,
PCT Pub. No. WO2022/118230, PCT Pub. Date Jun. 9, 2022.
Claims priority of application No. 102020000029915 (IT), filed on Dec. 4, 2020.
Prior Publication US 2023/0415217 A1, Dec. 28, 2023
Int. Cl. B21D 37/10 (2006.01); B21D 26/031 (2011.01); B21D 26/055 (2011.01); B21D 37/16 (2006.01); B29C 35/02 (2006.01)
CPC B21D 37/10 (2013.01) 8 Claims
OG exemplary drawing
 
1. A mold for a hot forming of a sheet of material, the mold comprising a first half-shell bearing a die, a second half-shell, and a chamber formed between said first half-shell and said second half-shell for forming of said sheet, the second half-shell being provided with channels and respective holes for feeding a pressurized gas into said chamber, wherein inside said die at least one ventilated chamber is provided, and said at least one ventilated chamber is equipped with heating assemblies and ventilation assemblies for circulation of hot air inside said at least one ventilated chamber.