Abstract: In an apparatus for molding particularly a tubular blank (1) of a ductile metal with internal high pressure in a mold, which has a cavity (5), a lower part (2) and a removable upper part (3) as well as a mechanism (6, 7, 13-21) for holding the upper (3) and lower parts (2) together, this mechanism consists of a pot (7), which is provided with a lid (15) and in which the mold (2, 3) is inserted. Between the pot (7) and the lid (15), a bayonet lock (13-20) is provided with a row of interlocking devices (14, 19), which can be brought into and out of engagement by means of a ring (16), which can be rotated relative to the mold (2, 3), and with an annular (9; 21) introduction of force into the lower part (2) and the upper part (3) near their circumference.

Abstract: In an apparatus for molding particularly a tubular blank of a ductile metal with internal high pressure in a mold having a cavity, which apparatus has a pressure-medium connection, which can be advanced from one base (10) and can be applied tightly against the one end of the tubular blank and a seal or a second pressure-medium connection, which can be advanced from a second base (11) and can be applied tightly against the other end, the mold or the pot (3) accommodating the mold has a circular cross section in the horizontal plane and, starting from the two bases (10; 11) with two tie rods (25; 26), a yoke (28; 29) is placed about the mold or the pot (3) and one (11) of the two bases can be moved on an arc (14) about the vertical axis (12) of the mold or the pot (3) and can be fixed at different places.