Combined manufacturing method of titanium alloy curvature component with ribs

Abstract

Disclosed is a combined manufacturing method of a titanium alloy curvature component with ribs. The combined manufacturing method comprises the first step of adopting additive manufacturing technology which includes but not limed to laser melting deposition modeling and electric beam fused deposition modeling, conducting additive manufacturing technology on a preset area of titanium alloy straight section bars of uniform cross section to obtain local reinforcing ribs and form titanium alloy straight section bars with ribs; the second steps of adopting section bar heating-stretching-bending technology to conduct heating and bending on the titanium alloy straight section bars with ribs through a power-on self-resistance, molding a required curvature outline and conducting online stress relation and cooling in a controlled temperature so as to obtain titanium alloy curve section bars with ribs; the third steps of controlling a little amount of numerical control machining on the titanium alloy curve section bars with ribs to obtain the titanium alloy curvature component that meets dimensional requirements. Through the three steps, material utilization rate during the manufacturing process of the titanium alloy curvature component can be sharply increased, forming accuracy is improved, and thus a low-cost and green manufacturing of the titanium alloy curvature component can be realized.

Description

[0001] 【Technical field】 [0002] The invention provides a combined manufacturing method of a titanium alloy curvature member with ribs, specifically, it provides a method for manufacturing a titanium alloy curvature member with near-net shape by combining two processes of additive manufacturing and thermal stretch bending of profiles. It belongs to the technical field of metal forming. [0003] 【technical background】 [0004] In order to reduce weight and improve economy, a new generation of large aircraft uses a large number of carbon fiber composite materials, such as the 787 large passenger aircraft manufactured by Boeing. The amount of carbon fiber composite materials accounts for 50% of the total weight of structural materials. The strength, stiffness, and thermal characteristics of titanium alloy and carbon fiber composite material are well matched, and the potentials of the two are close, which is not easy to cause galvanic corrosion. Moreover, titanium alloy itself has...

AI Technical Summary

Problems solved by technology

[0007] 1. Purpose: The purpose of the present invention is to solve the problems of low material utilization rate, high manufacturing cost, and poor forming accuracy in the traditional manufacturing process of titanium alloy curvature compon

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