Pre-pressing mold for 2014 aluminum alloy aviation precision wheel hub die forging

Abstract

The invention discloses a pre-pressing mold for a 2014 aluminum alloy aviation precision wheel hub die forging. The pre-pressing mold comprises an upper mold and a lower mold, wherein a first groove is formed in the end face of a first protrusion of the upper mold, a second groove is formed in the middle of the first groove, a third protrusion is arranged in the second groove, a first annular gapis formed between the third protrusion and the wall surface of the second groove, a fourth groove for forming a lug embryonic form is arranged on the first protrusion, a mold cavity is arranged on thelower mold, a second protrusion is arranged on the bottom of the mold cavity, a first annular groove and a second annular groove are arranged on the lower mold and surround the mold cavity from the inner part to the outer part, the first annular groove communicates with the mold cavity, the second annular groove communicates with one of the annular grooves, a third groove is formed in the middleof the bottom of the mold cavity, a fifth protrusion is arranged in the third groove, and a second annular gap is formed between the fifth protrusion and the wall surface of the third groove. When thestructure shape of the pre-pressing mold for the 2014 aluminum alloy aviation precision wheel hub die forging enables a pre-pressing piece to be formed, the flowing and filling sequence of metal arereasonable, and thus the product quality is improved.

Description

technical field [0001] The invention relates to the technical field of manufacturing aviation precision wheel hub die forgings, in particular to a pre-pressing mold for 2014 aluminum alloy aviation precision wheel hub die forgings. Background technique [0002] There is a typical specification forging on a large aircraft, which is the largest forging in the high-strength 2014 aluminum alloy aviation precision hub die forging: half wheel (cabin inner) die forging. The half-wheel (cabin inner side) die forging is a precision die forging, which is a disc type die forging. The maximum outer hub size of the part is φ593.3×309.1mm mm, and the maximum outer contour size of the die forging is φ616.5×314.2mm. [0003] Parts inside the half wheel well such as figure 1 and figure 2 as shown, figure 1 The first side view structural schematic diagram of the 2014 aluminum alloy aviation precision hub die forging provided for the embodiment of the present invention; figure 2 The seco...

AI Technical Summary

Problems solved by technology

Therefore, the biggest difficulty of hub die forgings is the difficulty of size control and the difficulty of controlling the uniformity of structure and performance

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