A composite integrated manufacturing method of arc addition and subtraction materials for a thruster model

Abstract

The invention belongs to the field of arc additive manufacturing, and discloses an arc additive and subtractive composite integrated manufacturing method for a thruster model. The method includes: (a) Dividing the propeller model into three parts, performing slice layering on the three parts and planning the filling trajectory of each slice layer, and the direction of the rotor and stator slices is along the outer direction of the core axis. In the direction, each slice layer forms a slice contour on the mandrel, and the filling trajectory is planned in the slice contour to obtain the filling trajectory of each slice layer; (b) forming the mandrel; (c) forming the rotor and stator. In the project of layer-by-layer processing of the slice layer, the real-time inspection of the slice layer is carried out by using infrared thermal imaging defect detection and line laser shape detection, thereby realizing the integrated manufacturing of additive and subtractive composites. The invention avoids the irreversible loss caused by the detection of waste products after parts are printed, reduces the consumption of energy and raw materials, and shortens the manufacturing period.

Description

technical field [0001] The invention belongs to the field of arc additive manufacturing, and more specifically relates to an arc additive and subtractive composite integrated manufacturing method for a thruster model. Background technique [0002] As a new type of propeller, the pump-jet propeller can greatly reduce the radiation noise of the submarine propeller and increase the low-noise speed of the submarine compared with the submarine propelled by a large skewed propeller, but its profile and structure are complex 1. The material has high hardness and is difficult to process. If traditional manufacturing methods are used, the removal amount of mechanical processing will reach more than 70%, the consumption of energy and raw materials is extremely high, and the production cycle is long. [0003] Additive manufacturing heat source types can be divided into laser, electron beam, plasma arc and free arc, etc. Compared with high-power laser and electron beam free incremental...

AI Technical Summary

Problems solved by technology

The workpiece clamping is complex and requires multiple clamping, which cannot meet the processing of complex curved surfaces such as impellers, blades, propellers, and generator rotors. Printing based on conical surfaces is easy to flow

Submarine pump-jet propeller is a product with special processing method and high technical requirements. If traditional manufacturing method is used, the amount of machining removal can reach more than 70%, the consumption of energy and raw materials is extremely high, and the manufacturing cycle is long.

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