Titanium alloy equal-thickness thin-wall special-shaped annular piece rolling and expanding composite forming method

A compound forming and special-shaped ring technology, applied in metal rolling and other directions, can solve the problems of low precision, poor performance, and low material utilization rate

Active Publication Date: 2015-11-11
丹东丰能工业股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the shortcomings of low precision, low material utilization rate and poor performance in the prior art, the present invention proposes a rolling-expansion composite forming method for titanium alloy equal-thickness and thin-wall special-shaped rings

Method used

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  • Titanium alloy equal-thickness thin-wall special-shaped annular piece rolling and expanding composite forming method
  • Titanium alloy equal-thickness thin-wall special-shaped annular piece rolling and expanding composite forming method
  • Titanium alloy equal-thickness thin-wall special-shaped annular piece rolling and expanding composite forming method

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Experimental program
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Embodiment 1

[0058] This embodiment is a composite forming process of titanium alloy rolling and expanding such as image 3 method of the ring shown.

[0059] When the special-shaped ring is formed by the rolling-expansion composite forming process, the bulging die disclosed in the invention with the application number 201510197511.1 is used. The bulging mold includes a mandrel 1, n supports, n punches 2, dies 3 and a base; n slide rails are evenly distributed on the upper surface of the base, and the direction of each slide rail is the direction of the base. Radially; the chute on the lower surface of each bracket is respectively fitted with the slide rails on the upper surface of the base to form a circular assembly; the small diameter end of the conical mandrel is located in the assembly, and The inner surfaces of each bracket are attached; the distance between the lower end surface of the mandrel and the upper surface of the base is 1 / 3 of the vertical height of the bracket; n punches...

Embodiment 2

[0111] This embodiment is a composite forming process of titanium alloy rolling and expanding such as Figure 4 method of the ring shown.

[0112] When the special-shaped ring is formed by the rolling-expansion composite forming process, the bulging die disclosed in the invention with the application number 201510197511.1 is used. The bulging mold includes a mandrel 1, n supports, n punches 2, dies 3 and a base; n slide rails are evenly distributed on the upper surface of the base, and the direction of each slide rail is the direction of the base. Radially; the chute on the lower surface of each bracket is respectively fitted with the slide rails on the upper surface of the base to form a circular assembly; the small diameter end of the conical mandrel is located in the assembly, and The inner surfaces of each bracket are attached; the distance between the lower end surface of the mandrel and the upper surface of the base is 1 / 3 of the vertical height of the bracket; n punche...

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Abstract

A titanium alloy equal-thickness thin-wall special-shaped annular piece rolling and expanding composite forming method comprises the processes of workblank design, upsetting and punching, thin-wall annular piece rolling, rigid mold bulging, finish machining and titanium alloy thin-wall special-shaped annular piece. The whole flow mainly depends on material plastic forming; oxide skin externally wrapping the annular piece is only removed by cutting and removing working allowance in the final process, so that the performance of the annular piece is ensured, and the cost is saved. When the special-shaped annular piece is finally formed, rigid mold bulging is adopted, and the final geometrical shape and dimension of the annular piece are ensured by a mold, so that the precision is very high; and the consistence of dimension and precision of a part can be ensured when multiple processing is continuously carried out.

Description

technical field [0001] The invention relates to the field of plastic processing, and relates to a rolling-expansion composite forming method for a titanium alloy equal-thickness thin-wall special-shaped ring. Background technique [0002] High-performance titanium alloy equal-thickness and thin-wall special-shaped rings have broad application prospects in the field of aerospace. At present, ring rolling direct forming, ring rolling + cutting or ring billet rigid die bulging are generally used to form such rings. Ring rolling is used to directly form special-shaped rings (LiangTian, ​​YuLuo, Hua-jieMao, LinHua.Ahybridoftheoryandnumericalsimulationresearchforvirtualrollingofdouble-grooveballrings.IntJAdvManufTechnol.(2013)69:1–13), when the wall thickness of the formed special-shaped ring is uniform, the roll and ring There is no stable contact surface between the blanks, which will make it difficult for the rolling process to continue, and the accuracy of the formed rings is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21H1/06B21C37/00
Inventor 郭良刚高冰杨合
Owner 丹东丰能工业股份有限公司
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