Manufacturing method of multidirectional rib-containing aluminum alloy plate

Abstract

A manufacturing method of a multidirectional rib-containing aluminum alloy plate comprises the following steps that A, an upper mold and a lower mold are correspondingly designed and manufactured according to the distribution condition of needed ribs on the aluminum alloy plate; b, after the aluminum alloy plate is heated to the recrystallization temperature for heat preservation for a certain time, the aluminum alloy plate is placed between the upper die and the lower die to be clamped in a matched mode; c, the aluminum alloy plate, the upper die and the lower die which are clamped in a matched mode are placed between rollers to be rolled, and the reinforced aluminum alloy plate is obtained; d, the height of the ribs is increased in a surfacing or additive manufacturing mode, and the rib-containing aluminum alloy plate with the ratio of the thickness of the aluminum alloy plate to the height of the ribs being 1: (5-15) is obtained; and E, the rib-containing aluminum alloy plate with the rib height increased is subjected to creep age forming treatment.

Description

technical field [0001] The invention belongs to the technical field of manufacturing ribbed thin-walled components in aerospace, and in particular relates to a manufacturing method of a multi-directional ribbed aluminum alloy plate. Background technique [0002] Large high-reinforced thin-walled cylindrical members are important components and key load-bearing structures of aerospace equipment, accounting for more than 40% of the weight of the airframe / rocket body structure. Creep aging forming technology is often used in the forming of large high-reinforced thin-walled cylindrical members. Its advantage is that it can realize forming and strength improvement of the member at the same time, so it is widely used in the manufacture of large thin-walled aerospace members. The high-strength thin-walled aluminum alloy plates used in creep aging forming mainly adopt the subtractive manufacturing process of high-strength wall plates that are bent first and then milled. As the heig...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a method for manufacturing multi-directional ribbed aluminum alloy plates to solve the problem of subtractive manufacturing of high-rib wall plates that are first bent and then milled in the manufacture of large-scale high-rib thin-walled cylindrical members proposed in the background art The process has the problems of long manufacturing cycle and high cost, and as the height of ribs increases, the cutting material produced will also increase greatly, and the material utilization rate is about less than 10%; while the wall panel extrusion molding, the efficiency is relatively low, and with the As the ratio of rib height to skin thickness increases, the probability of cracking or defects during the forming process of high-rib thin skin will also increase, making it difficult to break through the problem of manufacturing high-thickness ratio aluminum alloy plates

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