Manufacturing method of mould with conformal cooling channel

Abstract

The invention discloses a manufacturing method of a mould with a conformal cooling channel. The manufacturing method of the mould with the conformal cooling channel comprises the following steps thata casting blank capable of pouring the mould with the conformal cooling channel is manufactured by adopting a 3D printing method, and a mould blank cavity is processed and subjected to precision machining, so that the mould with the conformal cooling channel is obtained. According to the manufacturing method of the mould, a mould cooling system is simplified and optimized, by casting and combination of mould surface processing technology (build up welding, thermal spraying, laser powder cladding and laser welding wire cladding) material potential obtains utmost development, service life of themould is greatly prolonged, and part precision of the mould is greatly improved.

Description

technical field [0001] The invention relates to a mold manufacturing method with a conformal cooling water channel, and belongs to the technical field of mold design, processing and manufacturing. Background technique [0002] Molds are widely used in various industries for the processing and production of mass products. Among the widely used molds, most of them need to cool the molds. Cooling channels must be designed on the molds, such as injection molds. A reasonable cooling system can Keep the temperature of each part of the mold uniform, improve the surface quality of the plastic part, and a reasonable cooling system can maintain a constant mold temperature, which can effectively improve the temperature field inside the mold, increase the life of the mold, reduce the internal stress of the plastic part, and improve the quality of the plastic part. The dimensional accuracy can enhance the mechanical properties of plastic parts. In the traditional injection mold cooling ...

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Problems solved by technology

[0003] At present, the manufacture of conformal cooling channels is mainly realized by rapid prototyping technologies, such as direct metal deposition, direct metal laser sintering, selective laser sintering, selective laser melting, etc., such as CN107552786A, which introduces 3D printing conformal cooling mold preforms , CN105128227A introduces the use of friction welding to carry out 3D precision molding of the conformal cooling structure of the injection mold. These methods either use metal powder for rapid prototyping, or adopt methods such as sheet layer superposition to form, and all of them have machinable material types. Due to the low strength of the limited molded parts (the strength cannot reach the strength achieved by the traditional processing method), if the casting method is used to directly cast the preform with a conformal cooling channel mold, then the surface of the mold cavity is treated and processed , so that molds with conformal cooling channels can be obtained, which will bring revolutionary changes to the current mold design, production, processing and manufacturing, and will have a profound impact

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