A cylindrical component with deep blind hole and its manufacturing method
A manufacturing method and technology of deep blind holes, applied in the field of metal material processing and forming, can solve the problems of poor quality stability and low production efficiency, and achieve the effects of high production efficiency, improved production efficiency and high mechanical properties
Active Publication Date: 2022-04-08
NO 59 RES INST OF CHINA ORDNANCE IND
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[0004] The purpose of the invention is to solve the problems of low production efficiency and poor quality stability in the prior art
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Embodiment 1
[0043] like Figure 1-4 As shown, this embodiment is a method for manufacturing a deep blind hole cylindrical member, based on the size of the deep blind hole member forging to be formed, the material is Aermet100 ultra-high strength steel, the member length is 1940mm, the maximum outer diameter is 260mm, and the inner hole The diameter is 188mm, the aspect ratio>7, and the manufacturing method includes the following steps:
[0044] 1. If figure 1 As shown, the outer diameter of the rod-shaped blank is 265mm and the length is 900mm, calculated according to the material used for the component, heated to 1180-1200°C in a resistance furnace, and kept for 2.5h;
[0045] 2. Transfer the billet to the roll forging platform, preheat the die temperature of the forging roller to 350-400°C, and use the roll forging method to deform one end of the billet and process it into a tapered end, such as figure 2 As shown, after processing is completed, the billet temperature must not be lowe...
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Abstract
The invention discloses a cylindrical component with deep blind holes and a manufacturing method thereof. It is a tapered billet; the non-tapered end of the other end of the billet is put into the cross-rolling and piercing equipment for cross-rolling and piercing; when the cross-rolling and piercing is carried out close to the tapered end, the tapered end of the billet is separated from the roll mold, and the cross-rolling is carried out. The movement is stopped, and the formed blank is taken out; radial deformation is applied to the formed blank to obtain a deep blind hole component. The problems of low production efficiency, poor quality stability and high production cost in the prior art are solved. The advantages of the present invention are: after one-time heating, the billet can be continuously deformed as a whole, and the conical end thin neck of the roll-forging billet and the cross-rolling piercing are completed at one time; the integral forming makes the overall coaxiality and other dimensional deviations easy to control, and the mandrel is not easy to produce In the process of deformation and continuous forging, it is not easy to have uneven structure.
Description
technical field [0001] The invention relates to the technical field of metal material processing and forming, in particular to a cylindrical component with deep blind holes and a manufacturing method thereof. Background technique [0002] With the development of the modern military industry, the requirements for product performance are constantly improving, and the requirements for the organization and performance of the product are high. With the rapid development of weapons and equipment such as aerospace and aerospace, the demand for deep blind hole cylindrical components is increasing. [0003] Therefore, it is necessary to design a deep blind hole cylindrical component and its manufacturing method, with the purpose of solving the defects of low production efficiency and poor quality stability in the prior art. Contents of the invention [0004] The purpose of the invention is to solve the problems of low production efficiency and poor quality stability in the prior a...
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IPC IPC(8): B23P15/00
CPCB23P15/00
Inventor 陈强肖寒黄树海舒大禹吴洋詹红柴舒心王艳彬
Owner NO 59 RES INST OF CHINA ORDNANCE IND