Precise hot forming method for deep-cavity ribbed notched irregular cylindrical forge piece

An irregular and hot forming technology, applied in the field of warm forging, can solve the problems of large load tonnage, surface strain on the rib side wall, low die life, etc., to reduce the forming load, reduce the forming energy consumption, and prolong the die life. Effect

Active Publication Date: 2022-02-01
HARBIN INST OF TECH +1
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Problems solved by technology

[0004] The purpose of the present invention is to provide a precision thermoforming method for irregular cylindrical forgings with deep cavity, ribs and notches, which solves the problems of difficult filling, rib folding, side wall surface strain, large load tonnage and low die life of such

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  • Precise hot forming method for deep-cavity ribbed notched irregular cylindrical forge piece
  • Precise hot forming method for deep-cavity ribbed notched irregular cylindrical forge piece
  • Precise hot forming method for deep-cavity ribbed notched irregular cylindrical forge piece

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Embodiment Construction

[0044] Those of ordinary skill in the art can understand that the above-mentioned embodiments are specific examples for realizing the present invention, and in practical applications, various changes can be made to it in form and details without departing from the spirit and spirit of the present invention. scope.

[0045] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the spirit of the disclosure of the present invention will be described in detail below. After any person skilled in the art understands the embodiments of the present invention, they can learn from the present invention The techniques taught by the summary of the invention are subject to change and modification without departing from the spirit and scope of the summary of the invention.

[0046] The exemplary embodiments and descriptions of the present invention are used to explain the present invention, but not to limit the present inventio...

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Abstract

The invention discloses a precise hot forming method for a deep-cavity rib-attached notched irregular cylindrical forge piece, relates to the technical field of isothermal forging, and aims to solve the problems that the forge piece is difficult to fill, ribs are folded, the surface of the side wall is strained, the load tonnage is large, and the service life of a mold is relatively short. The method comprises the following steps: prefabricating a waist-drum-shaped blank, carrying out backward extrusion pre-forging forming, carrying out corrosive washing to repair the damage, carrying out conformal removal on the wad, carrying out allowance backward extrusion finish forging forming, carrying out corrosive washing to remove a lubricant on the surface of a forge piece, and carrying out heat treatment after forging. According to the method, technological parameters of annealing after forging of the irregular cylindrical forge piece with the deep cavity, the ribs and the notches are provided, and the dimensional stability of a finish forging forming piece needing follow-up machining after deformation machining is guaranteed. Theforge piece can be continuously and stably produced in batches at low cost, and is applied to the field of aviation.

Description

technical field [0001] The invention relates to the field of isothermal forging, in particular to a precision thermoforming method for irregular cylindrical forgings with deep cavity, ribs and notches. Background technique [0002] Aluminum alloy has the advantages of low specific density and excellent mechanical properties, and is widely used in aerospace and weapon manufacturing fields. As the flight time of the aircraft is longer and longer and the strike range of the missile is longer, it is necessary for the designer to choose lightweight materials and structural design as much as possible; on the premise of meeting the size requirements of the components, reduce the components as much as possible Structure, irregular notched cylindrical parts are gradually appearing in front of designers, and irregular cylindrical aluminum alloy aerospace forgings with deep cavity and ribs and notches are parts designed to integrate lightweight materials and lightweight structures. ...

Claims

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Application Information

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IPC IPC(8): B21J5/00B21J5/02B21J5/08B23P15/00
CPCB21J5/002B21J5/025B21J5/08B23P15/00
Inventor 万升祥宗影影李建伟邵斌郭晓琳单德彬韩维群郭斌张铁军
Owner HARBIN INST OF TECH
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