Forming die and forming method for thin-walled annular parts
A forming method and technology for annular parts, applied in forming tools, manufacturing tools, aircraft parts, etc., can solve problems such as the need to improve the processing quality and complex processing and forming processes, and achieve the effects of good processing quality, process saving and high reliability.
Active Publication Date: 2019-03-01
CHINA HANGFA SOUTH IND CO LTD
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Problems solved by technology
[0005] The invention provides a thin-walled annular piece molding die and a molding method to solve the technical problems that the existing thin-walled annular piece has complex processing and molding technology and the processing quality needs to be improved
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[0031] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0032] refer to figure 2 , the preferred embodiment of the present invention provides a thin-walled annular piece forming mold, which is used for bending and rolling the thin-walled piece to be formed. The forming mold of this embodiment includes: a lower template 2 and an upper template 1 arranged oppositely, The upper surface of the lower formwork 2 is provided with a die 21 affixed thereto, and the lower surface of the upper formwork 1 is provided with a punch 12 affixed thereto. The bending punch 121 and the rolling punch 122 for applying the rolling pressure, the concave mold 21 fixed on the lower template 2 includes the first concave mold 211 corresponding to the bending punch 121 and t...
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The invention discloses an annular thin-wall part molding die and a molding method. The molding die is used for bending and edge rolling of a to-be-molded thin-wall part. The molding die comprises a lower die plate and an upper die plate which are oppositely arranged; the upper surface of the lower die plate is provided with a female die fixedly connected with the lower die plate, and the lower surface of the upper die plate is provided with a male die fixedly connected with the upper die plate; the male die fixedly connected to the upper die plate comprises a bending male die used for applying pressure for bending and an edge rolling male die used for applying pressure for edge rolling; and the female die fixedly connected to the lower die plate comprises a first female die corresponding to the bending male die and a second female die corresponding to the edge rolling male die. One molding die is adopted for bending and edge rolling of the to-be-molded thin-wall part, the subsection machining complexity is avoided, and influences of repeated welding on the end product quality are avoided; and an annular thin-wall part machined according to the molding method is wholly molded, the machining quality is good, the working procedures are saved, and the reliability is high.
Description
technical field [0001] The invention relates to the field of mold forming for aero-engines, in particular to a mold for forming thin-walled ring parts and a forming method. Background technique [0002] Large ring parts are widely used in the aerospace field, such as aero-engine support plates, but the existing processing technology generally requires the support plates to be divided into left and right halves, such as figure 1 The parts a and b shown are bent and formed respectively before welding. Since there is a weld seam on the left and right sides of the support plate, the strength of the parts is poor, and they are easy to crack during use, which reduces the service life of the aero-engine parts. . [0003] CN104418698C discloses a method for forming large-scale ring parts, which includes: segmentally forging a square billet or cutting a straight billet from a steel plate → processing a reference plane → machining a cross-sectional shape → pressing forming → drawing ...
Claims
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IPC IPC(8): B21D37/10B21D53/92B23P15/00
CPCB21D37/10B21D53/92B23P15/00
Inventor 李展前李玲
Owner CHINA HANGFA SOUTH IND CO LTD