A progressive loading precision forming die device and process method for complex components of ultra-long grid high-rib wall panels

Abstract

The invention discloses a progressively loaded precision forming mold device and a process method for complex components of ultra-long grid high-rib wall panels, and relates to the technical field of thermal processing, including an upper mold and a lower mold, and the upper mold is provided with a punch; The lower mold includes an insert, a mold core and a mold base, the upper surface of the mold base is provided with a mounting groove, the mold core is slidably installed in the installation groove, and the insert is installed on the upper surface of the mold core surface. The invention realizes the partial progressive loading of the forging on the single-action press through the horizontal sliding of the mold core on the mold base, reduces the size of the mold, and avoids the folding defect caused by the overall loading.

Description

technical field [0001] The invention relates to the technical field of thermal processing, in particular to a progressive loading precision forming die device and a process method for a complex component of an ultra-long grid high-rib wall plate. Background technique [0002] With the increasing requirements for high performance and light weight of carrying equipment and vehicles, lightweight and high-strength materials (such as aluminum alloys, titanium alloys, high-performance steels, etc.) and lightweight structures (such as Super long and complex structure) has become an effective way to improve its reliability and reduce its weight. [0003] For complex components such as ultra-long (longer than 1 meter) grid high-rib wall plates, long-shaft connecting rods or crankshafts, if the traditional integral forging method is used, a large-tonnage die forging press needs to be used, which will cause excessive forging forming loads. large, resulting in shortened die life. The ...

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Problems solved by technology

[0004] In the past, the local loading isothermal forming mold device and process method mainly used multiple combined upper dies for local loading. The patent of JPH05293581A divided the upper die into a stepped pressure plate and multiple inserts for forming the web. During the forming process, drag The stepped pressure plate causes the height difference between the inserts to form the web area of ​​the forging and press the unformed area. The boundary area between the inserts and the inserts of this upper die structure must be selected near the forging ribs. Otherwise, because there is a gap between the insert and the insert, the billet will flow into it and produce burrs, and the size of the upper die will be limited by the size of the forging

[0005] The patent of CN106134318B adopts the combination mold of inner mold and outer mold. The forming process is mainly divided into two steps. The first step is to use part of the mold to form part of the rib features of the forging. The second step is to assemble part of the mold into one After the mold is loaded as a whole, although the forming load is reduced, the size of the upper mold is not reduced, and in the second step of overall loading, because the formed area is not constrained by the mold, it will cause the metal in the unformed area to move toward the formed area. Regional flow produces folds

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