Design method of special-shaped blank for superalloy f-section ring

A design method and a special-shaped blank technology are applied in the field of ring rolling and forming processing, which can solve problems such as increasing production costs, and achieve the effects of saving time and energy consumption, reducing rolling passes, and improving material utilization rate.
CN106825339BActive Publication Date: 2018-10-26安徽汉正轴承科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
安徽汉正轴承科技有限公司
Publication Date
2018-10-26

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Abstract

The invention discloses a special-shaped blank design method for a high-temperature alloy F-type section ring. The special-shaped blank design method includes the steps: designing a blank according to an F-type ring volume distribution characteristic curve; setting equal overall heights of an ideal blank and the ring according to metal axial flow characteristics in the rolling process of the ring; determining the height between two steps according to the height of the corresponding step of the ring. A mathematical model is built according to selected rolling ratio and space conservation laws, and the radial size of the ideal blank is determined. The size of the ideal blank is simplified according to the volume splitting complementary principle. The size of a fillet in the blank is optimized according to section filling conditions obtained by finite element simulation, and the shape and the size of an actual blank are finally determined. By the method, the shortcoming of filling incompleteness in the rolling process of the F-type ring can be effectively overcome, production cost is saved while material utilization rate is increased, and damage of machining to the internal streamline of a forging is avoided.
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Description

technical field

[0001] The invention relates to the technical field of rolling and forming processing of rings, in particular to a design method for a special-shaped blank of a high-temperature alloy F-shaped cross-section ring. Background technique

[0002] Ring rolling, also known as ring rolling or reaming, uses ring rolling equipment - ring rolling machine (also known as rolling machine or hole reaming machine) to reduce the wall thickness, Plastic processing technology for contour forming. In China, the production technology of rectangular cross-section rings has matured, but there are still various problems in the production of rings with special-shaped cross-sections. The most common problem is that the filling is not full. Guaranteeing the integrity of the final part size, and then machining to the specified part size, resulting in a large amount of material waste.

[0003] For high-temperature alloy F-section rings, if a simple rectangular-section ring blank is us...

Claims

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