A Space Envelope Forming Method for Polyhedron Components of Engine
A polyhedron and engine technology, which is applied to engine components, mechanical equipment, metal processing equipment, etc., can solve problems such as reducing the service life of molds, mold cracking, and difficulty in achieving high performance, high efficiency, and low-cost manufacturing of engine polyhedron components. Increased mold life, high forming efficiency, and improved internal stress distribution
Active Publication Date: 2021-01-05
WUHAN UNIV OF TECH
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Problems solved by technology
During the overall die forging process, severe stress concentration easily occurs in the corner area of the mold cavity, which leads to cracking of the mold and seriously reduces the service life of the mold
In summary, the existing cutting process and integral die forging forming process are difficult to achieve high-performance, high-efficiency, and low-cost manufacturing of engine polyhedral components
Method used
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[0037] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described in detail with reference to the accompanying drawings.
[0038] figure 1 , figure 2 and image 3 They are the front view, top view and left view of the polyhedral component of the engine to be formed, the maximum length is 53mm, the maximum width is 48mm, and the maximum height is 39mm.
[0039] Pre-forging design: the design method of pre-forging in this embodiment is as follows Figure 4 As shown, the specific process is as follows: the final forging is reduced in proportion by 5%, and the metal reduced by the reduction of the final forging is compensated to the relatively complex surface of the pre-forging, so as to ensure that the 1.5mm small chamfer of the final forging can be completely filled, There is no folding and the entire final forging can be formed; for the ...
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Abstract
The invention relates to a space envelope forming method for an engine polyhedron component. The method comprises the following step of 1, blanking, wherein a blank is a round bar material; 2, hot forging forming of a pre-forging piece; 3, trimming of the pre-forging piece, and specifically rapidly moving the pre-forging piece obtained in step 2 into a pre-forging trimming mold, and rapidly cutting off flashes of the pre-forging piece in a high-temperature state; 4, softening and lubrication treatment of the pre-forging piece; 5, designing of an envelope mold; 6, space envelope forming, and specifically horizontally placing the pre-forging piece obtained in step 4 into a lower mold of an envelope forming mold, contacting a simple profile face of the pre-forging piece with a cavity of the lower mold, contacting a complex profile face of the pre-forging piece with a cavity of the envelope mold, and multiple faces of the envelope mold are used for form various faces of the complex profileof a final forging piece of the polyhedron component; and 7, trimming of the final forging piece. According to the method, flow performance of metal can be improved, forming load is reduced, and a service state of the mold is improved, and accordingly the method is suitable for manufacturing the engine polyhedron component with the complex profile face.
Description
technical field [0001] The invention relates to the technical field of polyhedral component processing and manufacturing, and more specifically, relates to a space envelope forming method for a polyhedral component of an engine. Background technique [0002] Engine polyhedral components are key connectors used to fix oil pipes, exhaust pipes and various valve bodies in the engine. The performance of such components directly affects the stability and reliability of engine operation. With the increasing development trend of engine integration, miniaturization and light weight, the performance requirements for engine polyhedral components are becoming increasingly stringent. However, due to the very complex geometric configuration of this type of component, its processing is extremely difficult. At present, engine polyhedron components are usually produced by cutting process or integral die forging forming process. [0003] When the cutting process is used to produce engine p...
Claims
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IPC IPC(8): B21J5/02B21J5/00B21K3/00
CPCB21J5/002B21J5/02B21K3/00
Inventor 华林韩星会庄武豪胡亚雄
Owner WUHAN UNIV OF TECH