A fuel collector laser selective melting support assisted zero-stock forming process

Abstract

The invention relates to a laser selective melting support auxiliary zero-remainder forming process for a fuel collector, belonging to the technical field of metal additive manufacturing. The laser selective area melting support-assisted zero-margin forming process for the fuel collector includes the following steps: S1, three-dimensional modeling of the fuel collector; S2, setting the placement mode of the fuel collector; S3, according to the placement of the fuel collector method, setting the support adding scheme; S4, slicing the fuel collector model after adding support, and setting the parameters of the laser selective melting forming process; S5, slicing the fuel collector model after slicing and the set laser selective melting forming process The parameters are imported into the laser selective melting equipment to complete the forming of the fuel collector; S6, post-processing the formed fuel collector. The fuel collector laser selective melting and supporting auxiliary zero-stock forming process can improve the formability of the parts, reduce the machining process, improve the dimensional accuracy of the parts, and reduce the surface roughness of the parts.

Description

technical field [0001] The present invention is in the technical field of metal additive manufacturing, and in particular, relates to a laser selective melting support assisted zero-margin forming process for a fuel collector. Background technique [0002] Driven by the development of electronic information technology, aerospace and military weapons and equipment have begun to usher in a stage of rapid development. Traditional parts manufacturing processes are gradually unable to meet product needs, and additive manufacturing rapid prototyping methods stand out. Additive manufacturing (3D printing) has broad application prospects in aerospace, aviation, weapons, automobiles and other industries. It has the advantages of high forming efficiency and short manufacturing process, especially in the forming of special-shaped structural parts. [0003] Laser selective melting and forming technology is one of the main ways of metal additive manufacturing. This technology uses laser ...

AI Technical Summary

Problems solved by technology

However, due to the characteristics of the laser selective melting forming process, the surface roughness of the part is low and the dimensional accuracy is poor. The surface roughness Ra of the conventional laser selective melting part is about 6.3 μm, and the dimensional accuracy is about 0.1mm.

In order to improve the pass rate of parts, machining margins are often added to the surface of the parts, and subsequent machining is used to remove them to improve the surface accuracy of the parts. However, due to the special structure of the parts, it is difficult to remove the margins, the machining is difficult, the process is long, and the fixture design is difficult.

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