Closed die forging forming method for pressurized driving gear forge piece
A closed die forging and forming method, applied in the direction of wheels, vehicle parts, forging/pressing/hammer devices, etc., can solve the problems of high material consumption, easy cutting and forging of forgings, affecting the final performance, etc., to shorten the process Process, improve production efficiency, increase the effect of filling effect
Pending Publication Date: 2022-03-15
SHAANXI HONGYUAN AVIATION FORGING
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Problems solved by technology
[0002] 14CrMnSiNi2MoA supercharged driving gear is used as a key component of UAV engine, and generally adopts free forging or ordinary die forging forming method. At the same time, the forging streamline is easy to be cut and forged to affect the final performance. In addition, the traditional aviation forging production adopts open or residual burr forming process, and an additional trimming process is required after die forging.
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Embodiment 1
[0038] like figure 1 As shown, the 14CrMnSiNi2MoA supercharged driving gear forging has an outer diameter of φ41mm, a total length of 90mm, and a net weight of 0.5Kg. The forging adopts a vertical split mold structure design. Therefore, only the vertical split die forging method can be carried out. When performing closed die forging, because the material is structural steel, it is easy to produce scale when heated at high temperature. Burrs will affect the final forming effect of forgings. Therefore, the following series of steps and design methods are adopted:
[0039] Step 1 adopts the automatic blanking machine to cut the blank, the specification is φ41×50;
[0040] In step 2, an automatic chamfering machine is used to round the lower end surface of the blank R2;
[0041] Step 3 put the billet in an electric oven to preheat at 200-300°C, and the preheating time is 1 to 2 hours;
[0042] Step 4 Put the high-temperature lubricant into the special stirring device, stir eve...
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Abstract
The invention belongs to the technical field of material hot working, and particularly relates to a closed die forging forming method for a pressurized driving gear forge piece. Comprising the following steps that firstly, a blank is cut through an automatic blanking machine, and the specification of the blank is phi 41 * 50; secondly, the blank is preheated at the temperature of 200-300 DEG C; thirdly, a high-temperature lubricant is evenly sprayed to the surface of the preheated blank; fourthly, inert gas is introduced into an electric converter, the blank sprayed with the high-temperature lubricant is put into the electric converter filled with the inert gas to be heated to 1120 DEG C, and heat preservation is conducted; fifthly, after heat preservation is finished, the blank is placed in a closed die to be subjected to closed die forging; and sixthly, the forge piece is taken out of the closed mold through an ejection device. According to the method, forge pieces are good in formability, the problems that forge pieces are difficult to form and large in material consumption in a traditional common die forging mode are solved, and stable delivery of products is achieved.
Description
technical field [0001] The invention belongs to the technical field of thermal processing of materials, and in particular relates to a closed die forging forming method of a supercharged driving gear forging. Background technique [0002] 14CrMnSiNi2MoA supercharged driving gear is used as a key component of UAV engine, and generally adopts free forging or ordinary die forging forming method. At the same time, the forging streamline is easy to be cut and forged to affect the final performance. In addition, the traditional aviation forging production adopts open or residual burr forming process, and an additional trimming process is required after die forging. In order to reduce costs, shorten the manufacturing process, and improve the performance of forgings, a new lean production process for aerospace forgings was explored. The present invention proposes a closed die forging forming method for 14CrMnSiNi2MoA supercharged driving gear forgings, which can realize the applica...
Claims
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IPC IPC(8): B21J5/02B21J3/00B21J1/06B21J13/02B21J13/14B21K1/30
CPCB21J5/025B21J3/00B21J1/06B21J13/02B21J13/14B21K1/30
Inventor 叶宁唐军冯德文王彦伟樊利娜
Owner SHAANXI HONGYUAN AVIATION FORGING