A rolling feed curve control and checking method for reverse U-shaped multi-segment core rolls of aerospace rectangular rings
A technology of rectangular rings and control methods, which is applied to the field of rolling feed curve control and verification of reverse U-shaped multi-segment core rolls of aerospace rectangular rings, and can solve the problem of constant ring growth without considering rolling forming laws The speed cannot be controlled by ring rolling to achieve the effect of improving stable rolling
Active Publication Date: 2022-12-02
四川德兰航宇科技发展有限责任公司
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Problems solved by technology
However, this invention does not take into account the actual situation of ring rolling production and the rolling forming rules of aerospace materials, and the set constant ring growth rate cannot be used for ring rolling control in the actual production process of ring forgings.
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Embodiment 1
[0070] A method for controlling the rolling feed curve of a reverse U-shaped multi-segment core roll of an aviation rectangular ring, comprising the following steps:
[0071] (1) Feed curve planning of rolling core roll for each fire
[0072] According to the actual rolling production requirements of aviation ring forgings, the core roll feed curve for each fire rolling is calculated according to figure 1 It is planned to be a reverse U-shaped feed curve with 5 broken lines, and it is divided into biting stage, speed-up stage, main rolling stage, speed-down stage, and shaping stage in turn;
[0073] The outer diameter of the rectangular ring billet before rolling is D 0 , the inner diameter is d 0 , the outer diameter of the rectangular ring billet after rolling is D 1 , the inner diameter is d 1 , the total rolling time is T, the radial feed speed of the core roll is V, the total radial displacement of the core roll is △H, and the rolling time of each stage is △t 1 , Δt ...
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The invention discloses a method for controlling and checking the rolling feed curve of a reverse U-shaped multi-segment core roll of an aviation rectangular ring, including feed curve planning, speed planning, time proportion planning, rolling time calculation, generating reverse U-shaped multi-segment core roll feed curve, generation of ring outer diameter-time curve, ring outer diameter growth speed-time curve, and steps of building a rolling parameter system. The method of the invention is applied to the rolling production of rectangular rings of aviation materials, and meets the requirements of the rolling feed speed in the initial rolling biting stage, the rolling speed of the main rolling stage of aviation material rings, and the finish rolling of rings in the actual rolling process. The demand for the rolling speed of rings produced by ovality rolling in the stage, the rolling operators also have a basis for manual rolling operations, thus improving the stable rolling of rings in batches, and even the feeding of reverse U-shaped multi-segment core rolls The curve can meet the needs of automatic rolling production of rings for rolling curves.
Description
technical field [0001] The invention belongs to the technical field of ring rolling forming of aviation ring forgings, and in particular relates to a method for controlling and checking the rolling feed curve of reverse U-shaped multi-segment core rolls of aviation rectangular rings. Background technique [0002] Aeronautical ring forgings are often rolled by the ring rolling process. In the design process of the ring rolling process, the total amount of rolling deformation for each fire is mainly designed and controlled, that is, the size of the billet for each fire and the rolling completion are specified. Dimensions, the rolling process of individual hard-to-form aerospace material ring forgings needs to control the maximum growth rate of the outer diameter of the ring during each rolling process, but there is no detailed regulation for each rolling process. [0003] In the actual production process of aerospace ring forgings rolling, the rolling operator manually control...
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IPC IPC(8): B21H1/06G06F30/17
CPCB21H1/06G06F30/17
Inventor 刘君邹朝江杨家典宋捷赵泽敏胡元伟王清林凌兰宝山李景鹏
Owner 四川德兰航宇科技发展有限责任公司