Method and apparatus for die casting of parts
AssigneeInterplex NAS, Inc.
InventorsGoonhee Lee, Bonggee Lee
Life of this patent
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Abstract
A cold-chamber die-casting apparatus and method for making a die-cast part with an open space within the geometry of the part. The apparatus includes an injection shaft which receives molten material for casting the part. The molten material is pushed with a plunger through a gate and into a tool cavity corresponding to the part. The gate is disposed at an end of the injection shaft and adjacent the tool cavity at a position that corresponds to the open space of the part and is inside the geometry of the part.
Claims20
A cold-chamber die-casting apparatus comprising:
- an injection shaft configured to receive a molten material for casting a part with an open space within the geometry of the part;
- a tool cavity corresponding to the part and adjacent an end of the injection shaft;
- a gate disposed at an end of the injection shaft and adjacent the tool cavity, the gate being positioned inside the geometry of the part, and in the open space of the part, and the gate having a passage for the molten material to enter the tool cavity from the injection shaft;
- and
- a plunger disposed within the injection shaft and configured to inject the molten material from the injection shaft into the tool cavity through the gate.
A method of casting a part with an open space within the geometry of the part, the method comprising:
- providing an injection shaft, with a plunger therein, adjacent a cold chamber tool cavity corresponding to the part;
- providing a gate inside the geometry of the part, and in an area corresponding to the open space of the part, the gate including a passage between the injection shaft and the tool cavity;
- introducing molten material into the injection shaft;
- and
- pushing the molten material from the injection shaft through the gate and into the tool cavity to produce the die-cast part.
A cold-chamber die-cast part including an open space in a geometry of the part, the part being made by a method comprising the following steps:
- providing an injection shaft, with a plunger therein, adjacent a cold chamber tool cavity corresponding to the part;
- providing a gate inside the geometry of the part and in an area corresponding to the open space of the part, the gate having a passage between the injection shaft and the tool cavity;
- introducing molten material into the injection shaft;
- and
- pushing the molten material from the injection shaft through the gate and into the tool cavity to produce the die-cast part.
The cold-chamber die-cast part of clam 17 wherein the gate is in the vicinity of a center of the tool cavity.
The cold-chamber die-cast part 19 wherein the electronic component is an LCD screen.
Dependencies are inferred from the claim text.