Compressible inserts for ingate design in high-pressure die casting

A die, comprising:

• a casting chamber;
• an ingate in fluid communication with the casting chamber for introducing a molten metal into the casting chamber along a flow direction, the ingate having a first surface movable in a direction perpendicular to the flow direction of the molten metal;
• a cavity;
• and
• a pressurization device disposed within the cavity, the pressurization device configured to cause the ingate to have a first cross-sectional area in a plane perpendicular to the flow direction based on a first pressure of the molten metal in the ingate and to have a second cross-sectional area in the plane perpendicular to the flow direction based on a second pressure of the molten metal in the ingate, wherein the second pressure is greater than the first pressure.

A method of die casting, comprising

• pouring a molten metal into an ingate of a die, the die including the ingate and a casting chamber;
• injecting the molten metal at a first pressure from the ingate into the casting chamber along a flow direction, wherein the ingate includes a first surface movable in a direction perpendicular to the flow direction of the molten metal and the first surface defines a first height when the molten metal is at the first pressure;
• and
• increasing a pressure to the molten metal to a second pressure greater than the first pressure, wherein the first surface defines a second height greater than the first height when the molten metal is at the second pressure.