Additive manufacturing surface defect, internal defect and shape composite detection method and device

Abstract

The invention discloses an additive manufacturing surface defect, internal defect and shape composite detection device which comprises a surface defect detection system, an internal defect detection system, a shape three-dimensional measurement system and a clamping device, wherein the surface defect detection system comprises a first CMOS industrial camera; the internal defect detection system comprises an air cylinder and a detection probe; the detection probe is used for generating a magnetic field to be close to the detected surface and establish magnetic mutual action with a workpiece to form a magnetic disturbance environment; the shape three-dimensional measurement system comprises a line laser, a light filter and a second CMOS industrial camera. The device can perform real-time and comprehensive detection on the surface defect, the internal defect and the shape three-dimensional size in additive manufacturing, transmits data to an industrial personal computer for analysis, interacts with forming milling composite route planning software, and can control a shaping device in real time to perform formation and generate a milling code and control a milling cutter to perform milling on the additive manufacturing surface.

Description

technical field [0001] The invention belongs to the technical field of additive manufacturing, and more specifically relates to a composite detection method and device for surface and internal defects and appearance of additive manufacturing. Background technique [0002] Additive manufacturing technology has high production efficiency, low cost, and excellent mechanical properties of formed metal parts, and has become a research hotspot in the field of manufacturing. However, the existing additive manufacturing workpieces have low precision, poor surface quality, and are prone to defects such as pores, humps, pits, undercuts, cracks, and slag inclusions, such as the high-temperature liquid metal accumulation weld bead shape in arc additive manufacturing. The appearance is difficult to predict, and there is an urgent need for a detection device to detect the above-mentioned defects and appearance in real time, so as to reasonably adjust the parameters of the additive forming...

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Problems solved by technology

[0004] In view of the shortcomings of the prior art described above, the purpose of the present invention is to solve the problem of three-dimensional measurement of surface, internal defects and morphology in additive manufacturing, and to provide a method and device for composite detection of surface and internal defects and morphology in additive manufacturing

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