High temperature alloy plate bending die

Abstract

The invention discloses a high temperature alloy plate bending die. The high temperature alloy plate bending die comprises an upper die base plate, an upper die and a lower die, wherein the upper die is fixed to the bottom of the upper die base plate in a replaceable manner, a molding pressing head matched with a forge piece in appearance is arranged at the bottom of the upper die, and a molding groove is formed in the lower die in the manner of being matched with the molding pressing head; positioning plates for positioning a plate blank are correspondingly arranged at the position, on the two sides of the molding groove, of the lower die, and slope structures which are arranged in the manner of being matched with the plate blank are arranged on the inner side faces of the positioning plates; and the positions, combined with the two end faces of the forge piece, in the molding groove are each provided with a straight section, and the positions, combined with the two end faces of the forge piece, on the molding pressing head are inwards provided with inner die lifting angles A. The high temperature alloy plate bending die is low in die cost; the machining accuracy is high, and extrusion deformation is locally carried out in the plate bending process; and through cooling of the die to the extrusion component, the appearance size of the forge piece is finally guaranteed.

Description

technical field [0001] The invention belongs to the field of thermal processing and forming of metal materials, in particular to a high-temperature alloy (GH202) plate bending die. Background technique [0002] The GH202 material itself is a nickel-based aging precipitation-strengthened superalloy. It is a new material developed for high-thrust rocket engines and is often used in its high-temperature parts and structural parts. For some forgings of GH202 alloy medium and thick-walled plates (thickness 13mm) with complex curved surfaces, please refer to Figure 1 to Figure 3 shown. The product is bent and formed by a mechanical press, and has the following disadvantages in the specific processing process: [0003] 1) The inner cavity surface of the forging is a non-processed surface, and its size and surface quality requirements are relatively high. The existing bending forming die, the upper die and the upper die backing plate adopt an integral design, and the cost of a sin...

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Problems solved by technology

[0006] The object of the present invention is to provide a high-temperature alloy plate bending die, which has the characteristics of low processing cost, high processing precision and low processing difficulty, so as to solve the above-mentioned problems existing in the high-temperature alloy plate bending die in the prior art

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