A device and method for progressive composite forming of sheet metal stirring

Abstract

The invention relates to an incremental sheet metal stirring composite forming device and method. The forming device comprises an incremental stirring forming tool head, a reverse roof pressure head, a spindle motor, a main drive unit, an auxiliary drive unit and a sheet metal fixture. The forming method includes: generating an incremental forming track according to a three-dimensional model of a machining part to be machined to serve as a synchronous movement track of the main drive unit and the auxiliary drive unit; controlling the spindle motor to rotate, allowing the incremental stirring forming tool head to be driven to rotate by the spindle motor to be inserted in the interior of a sheet metal to be machined, and the reverse roof pressure head and the incremental stirring forming tool head pressing the sheet metal; respectively controlling the incremental stirring forming tool head and the reverse roof pressure head to move synchronously according to the synchronous movement track to complete incremental sheet metal stirring composite forming. Compared with the prior art, the incremental sheet metal stirring composite forming device and method has the advantages that functionally graded materials can be integrated in welding and forming, the manufacturing process is shortened, the number of tools is reduced, and the problem that traditional functionally graded materials are poor in extension and cannot be formed can be avoided as well.

Description

technical field [0001] The invention relates to the technical field of sheet material processing, in particular to a sheet material stirring and progressive composite forming device and method. Background technique [0002] Sheet metal has a wide range of applications in industries such as aviation, aerospace, automobiles, ships, and home appliances. The traditional sheet metal stamping forming method is suitable for large-scale production and processing, but for the trial production and processing of small batches, multiple varieties and samples, a progressive forming method of sheet metal has emerged in recent years. This method does not need to make a special stamping die for the product, has the characteristics of flexible processing methods, high forming limit, and low processing cost, and is especially suitable for the processing and production of small batches of metal sheets. [0003] The retrieval of existing incremental forming technology and devices found that: M...

AI Technical Summary

Problems solved by technology

The above devices are mainly for processing a single sheet with good formability, while gradient functional materials and metal matrix composites often have poor ductility and are difficult to perform post-forming processing

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