Wire piece relative height control device and method for electron beam fuse deposition process

Abstract

The invention provides a wire piece relative height control device and method for an electron beam fuse deposition process. The wire piece relative height control device comprises an image collection module, a front beam spot generation module, and a processing module, the image collection module is used for collecting a front beam spot generated by the front beam spot generation module in real time in the electron beam fuse deposition process; the front beam spot generation module is used for generating a front beam spot synchronously moving with the electron beam along a preset advancing path, and the front beam spot is arranged in front of the electron beam; and the processing module is used for processing the front beam spot image, acquiring actual relative height data of the acquisition position, and comparing the actual relative height data with preset relative height data to acquire difference data so as to adjust the distance between the wire and a component according to the difference data. According to the wire piece relative height control device, time lag and mechanical system execution delay caused by image processing are overcome, the real-time performance of control is guaranteed, and the forming quality and efficiency are improved.

Description

technical field [0001] The invention relates to the technical field of additive manufacturing monitoring, in particular to a device and method for controlling the relative height of a wire used in an electron beam fuse deposition process. Background technique [0002] The current electron beam fuse deposition manufacturing technology generally regards the upper surface of the part that has been manufactured as a horizontal plane. When manufacturing each layer, the relative height between the wire and the part remains unchanged, and only relies on horizontal relative motion to achieve current layer manufacturing. However, this manufacturing method results in a non-constant relative height between the filament and the part surface when the upper surface of the part is not ideally level. When the relative height of the wire parts is too small, the unmelted wire protrudes into the molten pool, and the sticking phenomenon occurs, which interrupts the manufacturing process and ma...

AI Technical Summary

Problems solved by technology

[0004] However, when the existing schemes control the relative height between the wire and the surface of the part, they usually collect and process the relative height between the surface of the deposit layer being deposited at the current moment and the wire, and then based on The processing results generate corresponding control actions for compensation. This method has a certain control lag and execution control delay, resulting in low real-time control

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