Hot trimming device and method for aviation engine blade type forgings
An aero-engine and hot-cutting technology is applied in the field of burr removal of aero-engine blade forgings, which can solve problems such as torsional deformation of blade forgings, and achieve the effects of optimizing shape and structure, stable working state and shortening processing cycle.
Inactive Publication Date: 2017-05-10
CHENGDU ENGINE GROUP
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Problems solved by technology
[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a device and method for edge trimming of aero-engine blade forgings to solve the problem of torsional deformation of the airfoil of blade forgings during edge trimming
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[0032] The hot edge trimming device and method for aero-engine blade forgings according to the present invention will be further described below through specific embodiments and with reference to the accompanying drawings.
[0033] In this embodiment, the trimmed aero-engine blade forgings are forged on a hydraulic press, and the forging blanks are kept warm in a high-temperature electric furnace. During the forging process, the surface of the blanks is evenly coated with glass lubricant, and the forgings are trimmed immediately after forging.
[0034] In this embodiment, the trimming equipment is a hydraulic trimming machine, model КБ262, produced in Russia.
[0035] In this embodiment, the edge trimming device such as figure 1 As shown, it includes a base 1, a spring 2 that provides reverse extrusion force for the edge-cut blade forging, a guide post 3 that guides the spring, a top plate 4, a backing plate 5, a female mold 7, a bracket 6, and a pillar 8. Punch 10 and guide ...
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The invention provides a hot trimming device for aviation engine blade type forgings. The hot trimming device comprises a base, springs for providing reverse extruding force for the trimmed blade type forgings, guide pillars used for guiding the springs, an ejecting plate, a cushion plate, a female die, a support block, support columns, a punch and a guiding plate. The invention also provides a hot trimming method adopting the hot trimming device, and the method includes the following steps that (1) one blade type forging which is finally forged and formed is placed on the support block of the hot trimming device; (2) trimming equipment is started, the punch of the hot trimming device is driven by the trimming equipment to move downwards so as to exert force on the blade type forging, and burrs of the blade type forging are removed under the action of shearing force; and (3) when the punch moves to the position of a bottom dead center, the springs, the ejecting plate, the cushion plate and the support block are linked with the punch and move upwards under the action of resilience of the springs, the trimmed blade type forging is ejected out, and then the punch is separated from the blade type forging and restores to the original position.
Description
technical field [0001] The invention relates to the field of burr removal for aero-engine blade forgings, in particular to an edge trimming device and method for aero-engine blade forgings. Background technique [0002] Aeroengine blade forgings are mainly forged from hard-to-deform materials such as titanium alloys and high-temperature alloys. Due to aerodynamic requirements, the torsion angle of the blades is large, so these forgings are molded with curved surfaces, and the obtained forgings need to be deburred. At present, the edge trimming method used to remove the burrs of aero-engine blade forgings is mainly to use ordinary trimming dies for eager cutting, and some aluminum alloy blade forgings are cold-cut, but whether it is hot-cut or cold-cut, the blade body of the forging will be damaged during the trimming process. torsional deformation occurs. In order to solve the problem of torsional deformation of the forging airfoil, the usual method is to use the original m...
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IPC IPC(8): B21D28/02B21D28/04B21D28/14
CPCB21D28/02B21D28/04B21D28/14
Inventor 陈基东袁本福温金明唐宁张小红何浩林
Owner CHENGDU ENGINE GROUP