Material-saving whole fast manufacturing method of metal part

Abstract

The invention discloses a material-saving whole fast manufacturing method of a metal part. The method comprises the following steps: (1) modeling a model of the metal part without inner structure in three-dimensional software, and exporting files as an STL format; (2) importing the files with the STL format into software for processing the files with the STL format, processing the files with the STL format, comprising hollowing out and adding the inner structure; and transmitting data information of processed STL files to a fast forming system; (3) vacuumizing a forming cavity, introducing protective gas, and forming the three-dimensional metal part by the fast forming system; and (4) carrying out post processing to the formed three-dimensional metal part according to the performance requirements of the final part. Under the premise of meeting the mechanical performance requirements, the method can save large amount of materials, lower the weight of the metal part, do not need any industrial die when in manufacturing, be not influenced by complex degree of the inner structure, and wholly form a high-performance metal part with the compactness of meeting use requirements in a one-time manner, thus being very suitable for processing metal parts with light mass requirement.

Description

technical field [0001] The invention belongs to the field of advanced manufacturing, and in particular relates to a material-saving overall rapid manufacturing method for metal parts. Background technique [0002] In the field of modern advanced manufacturing, conformal cooling molds, integral turbine disks, inner runner components, supporting mesh parts, complex handicraft parts, etc. cannot be integrally formed by machining and forging methods, and only partial structures can be processed gradually. Finally, through Splicing into a whole by welding and other methods not only has complicated process and many processes, each step increases the reject rate of parts, but also reduces the overall performance of parts and may cause the defects of parts to concentrate in a certain part. Traditional casting methods cannot form complex parts. Although investment casting and lost foam casting methods can be integrally formed, it is also difficult to use these casting methods for par...

AI Technical Summary

Problems solved by technology

[0002] In the field of modern advanced manufacturing, conformal cooling molds, integral turbine disks, inner runner components, supporting mesh parts, complex handicraft parts, etc. cannot be integrally formed by machining and forging methods, and only partial structures can be processed gradually. Finally, through Splicing into a whole by welding and other methods, not only the process is complicated, but there are many processes, each step increases the reject rate of the parts, and reduces the overall performance of the parts, which may lead to the concentration of defects in a certain part of the parts

Traditional casting methods cannot form complex parts. Although investment casting and lost foam casting methods can be integrally formed, it is also difficult to use these casting methods for parts with internal complex structures, and the castings have many defects, which makes it difficult to meet high performance and high precision requirements. skills requirement

[0003] Many metals are relatively expensive, the cost of making parts is high, and the traditional processing methods of many internal structures have serious material waste, and the complex molds with complex internal structure parts have a long production cycle, high cost, or cannot be completed by traditional processing. Application of various structural materials and functional materials

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