Electric arc additive manufacturing method of conformal cooling passage with circular cross section

Abstract

The invention relates to an electric arc additive manufacturing method of a conformal cooling passage with a circular cross section. According to the method, the inner surface of a rough machined moldis used as an additive datum plane, a consumable electrode inert gas protection electric arc additive process is adopted, an internal conformal passage with a circular cross section is manufactured through a specific conformal additive path and a specific angle, a cooling medium flows in the passage, and a flowing direction is parallel to the inner surface of a mold cavity. The method comprises the following steps of S1, designing a structure of a three-dimensional conformal passage with the circular cross section; S2, partitioning the passage structure, and milling the datum plane of a basebody; S3, carrying out additive manufacturing on the lower half part of the passage; S4, carrying out additive manufacturing on an inner wall structure and other structures of the upper half part of the passage; and S5, machining the inner surface of the mold cavity. The electric arc additive manufacturing method of the conformal cooling passage with the circular cross section provided by the invention adopts a low-cost electric arc additive manufacturing process technology for realizing high-efficient manufacturing of the complicated conformal cooling passage of the large-size mold, and has the characteristics that raw materials are saved, the manufacturing cost is reduced, the mold cooling efficiency is high, the cooling uniformity is good, and the like.

Description

Technical field: [0001] The invention relates to an arc additive manufacturing method for a circular cross-section conformal cooling channel. Background technique: [0002] Organic products, such as plastic products, carbon fiber composite products, glass fiber composite products, etc. are widely used in the national economy and people's daily life. The use of molds to realize the molding of organic products is the most effective manufacturing method. In the process of molding organic products, uneven cooling inside the mold is one of the main factors leading to various defects of the product. In order to ensure the quality of organic products, the temperature of the mold must be strictly adjusted and controlled. Generally, the temperature of the mold is controlled by opening a cooling channel inside the mold. Limited by traditional processing methods, the traditional cooling channel is a simple linear cooling channel. In the face of organic products with complex structure...

AI Technical Summary

Problems solved by technology

To sum up, there is still a lack of application technology development of arc additive manufacturing technology in complex structures and mold structures, especially there is no new application technology of arc additive manufacturing technology in the manufacture of conformal flow channels inside molds. Appear

Images