Electric arc additive and subtractive composite integrated manufacturing method of thruster model

Abstract

The invention belongs to the field of electric arc additive manufacturing, and discloses an electric arc additive and subtractive composite integrated manufacturing method of a thruster model. The method comprises the steps of (a) dividing the thruster model into three parts, slicing and layering the three parts, and planning a filling trajectory of each slicing layer, wherein the slicing directions of a rotor and a stator are along the outer normal direction of a spindle, each slicing layer forms a slicing contour on the spindle, a filling trajectory is planned in each slicing contour, and obtaining the filling trajectory of each slicing layer; (b) molding the spindle; and (c) molding the rotor and the stator. In the project for layer-by-layer processing the slicing layers, the slicing layers are detected in real time through infrared thermography defect detecting and line laser appearance detecting, so that additive and subtractive composite integrated manufacturing is realized. Through the electric arc additive and subtractive composite integrated manufacturing method of the thruster model provided by the invention, the irreversible loss caused since waste products are detectedafter parts are printed is avoided, the energy and raw material consumption is reduced, and the manufacturing period is shortened.

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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