Apparatus and process for casting metal parts

A process for low pressure die casting of metal parts, the process comprising the steps of:

• providing an apparatus comprising:
• at least one mold cavity defined by at least one at least partly surrounding cavity wall;
• a system of sprues, runners and/or ingates defining at least one flow channel for filling the at least one mold cavity with molten metal;
• at least one riser insert configured to be arranged at least partly inside at least one riser cavity of at least one riser, the at least one riser insert comprising at least one insert cavity for receiving the molten metal at least partly from the at least one mold cavity, and at least one insert cavity at least partly surrounded by a riser insert wall, the at least one riser insert being configured to at least partially decelerate solidification of the molten metal received by the at least one insert cavity;
• and
• at least one heating insert for at least partly heating the molten metal received by the at least one insert cavity, wherein the at least one heating insert is arranged at least partly inside the at least one riser cavity;
• filling the at least one mold cavity of the apparatus with the molten metal via the least one flow channel;
• receiving the molten metal within the at least insert cavity at least partly from the at least one mold cavity;
• and
• at least partly decelerating the solidification of the molten metal received within the at least one insert cavity via operation of the at least one heating insert.