Die casting mold and method of manufacturing and casting the same
AssigneeYamaha Hatsudoki Kabushiki Kaisha
InventorsHiroshi Yoshii, Kimitoshi Satou, Takayoshi Inamura
Life of this patent
Estimating the term…
Abstract
In a die-casting mold used in a casting method, a fixed insert includes a recessed cavity portion, and a fixed mold body is arranged to hold the fixed insert. The fixed insert includes a first insert and a second insert. The first insert is held with the fixed mold body. The second insert is fitted and held within a recess formed on the first insert. The size of the second insert is minimized so as to just surround the recessed cavity portion.
Claims13
A die casting assembly including a platen and a die casting mold attached to the platen, the die casting mold comprising:
- an insert having a recessed cavity portion;
- and
- a mold body arranged to hold the insert;
- wherein
- the insert includes a first insert held within the mold body, and a second insert held within a recess in the first insert;
- and
- the second insert surrounds the recessed cavity portion.
A method of manufacturing a die casting mold assembly, the die casting mold assembly including a platen and a die casting mold attached to the platen, the die casting mold including an insert defined by a first insert held by a molding body and a second insert held within a recess in the first insert, the second insert surrounding a recessed cavity portion, the manufacturing method including the steps of:
- interposing a spacer between an inner bottom portion of the recess of the first insert and the second insert;
- removing a portion of the recessed cavity portion of the second insert and a surface arranged around the recessed cavity portion by a dimension consistent with the thickness of the spacer.
A casting method using a die casting mold assembly, the die casting mold assembly including a platen and a die casting mold attached to the platen, the die casting mold including an insert having a first insert held by a molding body, and a second insert surrounding a recessed cavity portion, the second insert held within a recess provided on the first insert, the casting method including the steps of:
- casting a number of casting cycles using the die casting mold;
- refurbishing the die casting mold by including interposing a spacer between the first insert and the second insert after a predetermined number of casting cycles, and removing a portion of the recessed cavity portion of the second insert and a mating surface provided around the recessed cavity portion by a dimension consistent with a thickness of the spacer;
- and
- repeating the casting and refurbishing steps multiple times until the portion of the recessed cavity portion and the mating surface is greater than a predetermined margin, then replacing the second insert with a new second insert.
Dependencies are inferred from the claim text.