Die internally provided with free-shaped water way and manufacturing method of die

Abstract

The invention discloses a die internally provided with a free-shaped water way and a manufacturing method of the die. The method includes a die core manufacturing procedure. The die core manufacturing procedure includes the steps that a die core is divided into an upper die core body, a lower die core body and the water way on the water way, and a water way model and a lower die core auxiliary forming jig are manufactured firstly; the metal powder pressing technology is used, a lower die core model is pressed through the lower die core auxiliary forming jig, the water way model is placed on the lower die core model and filled with metal powder continuously, the metal powder is pressed, a die core model in which the water way model is embedded is finally formed in a forming groove, sintering and degreasing are conducted on the die core model, the water way model made of resin is removed, the upper die core model and the lower die core model are integrally formed, and the die core internally provided with the free-shaped water way is then manufactured. The free-shaped water way is distributed on the periphery of a cavity in the mode that the track of the free-shaped water way is identical to the shape of the cavity, and the cavity can be evenly cooled.

Description

technical field [0001] The invention relates to the field of molds and manufacturing techniques thereof, in particular to a mold with conformal water channels inside and a manufacturing method of the mold. Background technique [0002] Usually, it is necessary to make a waterway on the mold to heat or cool the mold and keep the temperature of the mold constant. However, due to the limitation of the traditional manufacturing process, the trajectory of the waterway formed by drilling can only be a straight line or a plane. Curved surfaces or other complex shapes cannot be machined. With the increasing homogeneity of 3C electronic products, in order to achieve product differentiation, more and more manufacturers make the shape / manufacturing process of products more and more complex, and the products continue to develop towards thinner and curved surfaces, so that the mold and molding process Higher requirements have also been raised. [0003] Existing waterway cooling, when f...

AI Technical Summary

Problems solved by technology

[0007] The main purpose of the present invention is to propose a method for making a mold with a conformal waterway inside, to manufacture a complex-shaped conformal waterway inside the core of the mold with a simple process and low cost, so as to solve the difficulty in making in the prior art Thin-walled, large-curved surface product warping, large residual stress, long cooling time, and short shots caused by complex-shaped waterways for uniform cooling of products

Images