Die casting mold with inner cooling mold cavity and design method thereof

Abstract

The invention discloses a die casting mold with an inner cooling mold cavity and a design method thereof. The method comprises the steps that firstly, a cuboid mold cavity is prepared, and a periphery base plate and a top face base plate are prepared on the inner side of the cuboid mold cavity through high-temperature arc material adding; multiple supporting plates are prepared through the high-temperature arc material adding, the supporting plates are provided with through holes allowing cooling water to freely flow in the mold cavity of the mold, and according to punching stress analysis of the die casting mold, the supporting plates are mounted in the periphery base plate to support the top face base plate; the female and male mold top end appearance of a grinding apparatus is prepared on the surface of the top face base plate through the high-temperature arc material adding manufacturing and milling composite machining process; finally, the diagonal line positions of the two side faces of the cuboid mold cavity are drilled, and drilled holes are used for connecting with a cooling water pipe. An inner support is manufactured through the high-temperature arc material adding, under the condition that the mold rigidity strength is ensured, and the machining material cost and machining time can be greatly saved. Through the inner mold cavity, the water flow direction and the water storage amount are independently designed, and therefore the mold is effectively cooled.

Description

technical field [0001] The invention relates to a die-casting mold with an internal cooling cavity and a design method thereof. Background technique [0002] Mold is the foundation of modern manufacturing industry, and mold cooling technology has an important impact on mold life and workpiece quality. A commonly used mold cooling method is to set a cooling liquid flow channel inside, so that the temperature of the mold is limited within the boiling point temperature of the cooling liquid. The current commonly used method of constructing the flow channel is to use a drill bit to drill a series of straight round holes from the side of the mold as the cooling flow channel. The disadvantages of such a flow channel are: (1) The flow channel drilled by the drilling process is straight The total volume of the pipe is limited, and the pipe cannot be distributed evenly throughout the mold to the maximum extent, so the cooling capacity is limited; (2) The cooling hole used as the mol...

AI Technical Summary

Problems solved by technology

The current commonly used method of constructing the flow channel is to use a drill bit to drill a series of straight round holes from the side of the mold as the cooling flow channel. The disadvantages of such a flow channel are: (1) The flow channel drilled by the drilling process is straight The total volume of the pipe is limited, and the pipe cannot be distributed uniformly throughout the mold to the maximum extent, so the cooling capacity is limited; (2) The cooling hole used as the mold flow channel is a through hole with a large depth, which is easy to cause The drill breaks, so there are high requirements for manufacturing equipment and technology

However, in the case of metal die-casting (especially stainless steel die-casting), because the working temperature of the die-casting mold is too high, the water in the flow channel will vaporize rapidly and cannot be replenished, resulting in excessive mold temperature or uneven cooling of various areas of the mold

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