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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

Pending Publication Date: 2021-08-27
上海第一机床厂有限公司
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Problems solved by technology

[0004] The purpose of this application is to provide a thin-walled casing manufacturing method to solve the problem that the existing ultra-thin-walled seamless pipe processing methods cannot meet the requirements for dimensional accuracy and product stability, and to solve the problem of extremely large outer diameters. Difficulties in manufacturing ultra-thin-walled seamless pipes with wall thickness ratio and large length-to-diameter ratio

Method used

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  • Manufacturing method of thin-wall sleeve shell
  • Manufacturing method of thin-wall sleeve shell
  • Manufacturing method of thin-wall sleeve shell

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Embodiment Construction

[0040] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Apparently, the described embodiments are only some of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of this application.

[0041] In the description of the present application, it should be understood that the terms "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", " The orientation or positional relationship indicated by "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the application and simplifying the description, rather than indicating or implying that the referred ...

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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.

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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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00
CPCB23P15/00
Inventor 吴伟建于耀华薛松楼杭飞李翔徐辉汪艳芬
Owner 上海第一机床厂有限公司
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