Precision isothermal forging combined die for complex aerospace die forged pieces

A technology of isothermal forging and combined dies, which is used in manufacturing tools, forging/pressing/hammer devices, forging/pressing/hammering machines, etc., and can solve problems such as difficulty in realizing ideal forging products, difficulty in forming forgings, poor universality of molds, etc. , to reduce the weight of precious materials, improve mechanical properties, and reduce weight

CN102179466AInactive Publication Date: 2011-09-14CENT SOUTH UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2011-09-14
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a precision isothermal forging combined die for complex aerospace die forged pieces, which comprises an upper die and a lower die, wherein the upper die comprises an upper die seat (1), an upper die inner sleeve (2) and an upper die insert block (3); and the lower die comprises a side surface insert block pressure plate (4), a side surface insert block (5), a bottom surface insert block (6), a first ejector rod (7), a second ejector rod (18), a lower die inner sleeve (8), an ejector rod tray (9) and a lower die seat (10). The upper die insert block (3) constitutes the die surface of the upper die; and the side surface insert block (5), the bottom surface insert block (6) and the lower die inner sleeve (8) constitute the die surface of the lower die together. The invention provides the combined die, which can realize complete filling, smooth streamline, no folding, easiness in die release and strong universality for aerospace type complex members, such as aerospace joint type parts.
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Description

technical field

[0001] The invention relates to a forging die, in particular to the forging of complex aviation high-strength structural parts. Background technique

[0002] With the rapid development of aviation and aerospace technology, components are increasingly required to be large and integrated, thin-walled and lightweight, complex in shape, and to meet the requirements of high-performance and low-cost manufacturing. Large and complex components with high ribs and thin walls are widely used in the aerospace industry. Due to the complex structure of rib plate die forgings, forging defects such as insufficient filling, poor flow lines, folding, and flow through are prone to occur during the forming process. With the development of aircraft towards high performance and long life, the demand for integral die forgings such as ribs and plates is increasing, which brings new challenges to the process design of complex forgings, especially the design of molds.

[0003] At p...

Examples

Embodiment Construction

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0020] see figure 1 and figure 2 , the structure of the upper mold is that the top of the upper mold seat 1 is provided with a step for fixing on the press pad, the upper mold seat 1 is cylindrical, and the upper mold inner sleeve 2 is fixedly installed on the upper mold seat 1 with the upper pressing plate 20 Inside and flush with the boss of the upper die base 1, the upper die inner sleeve 2 is a cylindrical structure, the material is general forged steel, the upper die insert 3 is the upper model surface, and the bottom surface is square, which is made of high temperature resistant materials. , the upper die insert 3 adopts interference fit and is fixed in the upper die inner sleeve 2 by bolts; the structure of the lower die is that in the lower die base 10 there are two steps, one upper and one lower, the upper steps are positioned and conn...