Precision isothermal forging combined die for complex aerospace die forged pieces

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.

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...

AI Technical Summary

Problems solved by technology

The use of this kind of integral mold hot die forging for forging is generally only suitable for components with simple structure and easy demoulding.

For complex aviation components, if this structure is adopted, on the one hand, it will lead to difficulty in forming forgings, difficulty in demoulding, and difficulty in realizing ideal forging products; Poor performance, each forging requires a special set of molds, resulting in waste of molds and a sharp increase in cost

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