Manufacturing method of thin-wall sleeve shell

A manufacturing method and thin-wall sleeve technology, which is applied in the field of thin-wall sleeve manufacturing, can solve the problems of large outer diameter wall-thickness ratio, inability to meet the requirements of dimensional accuracy and product stability, and achieve high stability and strong operability and application prospects, and the effect of improving machining accuracy
CN113305514APending Publication Date: 2021-08-27上海第一机床厂有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
上海第一机床厂有限公司
Publication Date
2021-08-27

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Abstract

The invention discloses a manufacturing method of a thin-wall sleeve shell. A clamping part with the thick wall is arranged at one end of the thin-wall sleeve shell and used for clamping in the machining process and cutting off after machining, the influence of the elastic force of a mandrel on stress deformation of the inner hole face of a workpiece is reduced, manufacturing and machining of sleeve shell parts with the great outer diameter wall thickness ratio and the large length-diameter ratio are achieved, precise machining of ultra-thin-wall-thickness sleeve shell parts can be achieved, high stability is achieved, batch manufacturing can be achieved, stable size precision and surface quality can be provided, and high operability and application prospects are achieved; and an external supporting sleeve is further arranged on the outer side of a part blank machined into the thin-wall sleeve shell for clearance / interference / transition fit, so that external supporting can be effectively provided for the sleeve shell, and the machining precision can be improved.
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Description

technical field

[0001] The present application relates to the technical field of manufacturing control rod driving mechanisms applied to nuclear power equipment, and in particular to a method for manufacturing thin-wall casings. Background technique

[0002] In the prior art, thin-wall sleeves are manufactured mainly by forming the inner hole, supporting the inner hole with various mandrels, and then processing the outer circular surface to the final part size. At the same time, if the seamless requirement is not considered, thin plate rolling and welding can be used for forming; further, if the material restrictions are relaxed, rolling, pouring and other methods can also be used for forming, and it is extremely difficult to control the precision of thin walls.

[0003] However, for the ultra-thin-wall seamless pipe processing of martensitic stainless steel, the method of machining the outer circle after the inner hole is formed is a conventional method, but due to the extr...

Claims

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