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Connecting method for thin-wall shells

A thin-walled shell and connection method technology, which is applied in metal processing, metal processing equipment, manufacturing tools, etc., can solve the problems of difficult production conditions, high safety requirements, and low connection strength, and achieve material saving and workpiece accuracy High, reduce the effect of trimming cutting amount

Inactive Publication Date: 2016-05-04
SHANGHAI JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The connection strength of this process is not high, and the production conditions of high pressure are difficult to realize, and the safety requirements of production are high, which is not as simple and easy as the present invention

Method used

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  • Connecting method for thin-wall shells
  • Connecting method for thin-wall shells
  • Connecting method for thin-wall shells

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Embodiment Construction

[0027] Referring to the accompanying drawings of embodiments of the invention, the invention will be described in more detail below. However, this invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In these drawings, the size and relative sizes of layers and regions may be exaggerated for clarity.

[0028] refer to Figure 1-3 , the method for connecting thin-walled shells provided by the present invention, in order to realize the connection between two thin-walled shells, the connecting ends of the two thin-walled shells are cylindrical, and the diameters of the connecting ends of the two thin-walled shells are The same; the connection of such thin-walled shells requires high matching precision and high sealing requirements; conven...

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Abstract

The invention provides a connecting method for thin-wall shells. The connecting method for the thin-wall shells is used for achieving connection between the two thin-wall shells, the connecting ends of the thin-wall shells are cylinders, and the diameters of the thin-wall shells are the same. According to the connecting method for the thin-wall shells, the end of one thin-wall shell is subjected to spinning necking or flaring and trimming and then is matched with the other thin-wall shell; and then manners of welding and the like are adopted for connection. The connecting method has the beneficial effects that the spinning necking or flaring method is adopted, the technology is simple, and operation is easy; trimming is conducted after spinning necking or flaring, secondary positioning is not needed, the machining safety coefficients are high, and the service life of a tool is long; the thin-wall shells obtained after spinning necking or flaring are high in size precision, easy to match and high in connecting strength.

Description

technical field [0001] The invention relates to the technical field of connecting and forming metal workpieces, in particular to a method for connecting thin-walled shells. Background technique [0002] The connection of thin-walled shells is a common process in the manufacturing industry. How to ensure the fit accuracy of the shells, especially the rotary shells, is an urgent problem for manufacturers to solve. In order to achieve a good connection of the thin-walled shell, only by processing the end of the shell to be round and even to ensure the matching accuracy can the shell be well sealed and beautiful in appearance. [0003] At present, the common connection methods in China include threaded connection, flange connection, welding connection, adhesive connection, mechanical connection and so on. The threaded connection is easy to loosen at the thread, and the thread is easy to become a crack source to cause corrosion or breakage, thereby reducing the degree of sealing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P11/00B21D22/16
CPCB23P11/00B21D22/16
Inventor 王锋华张亚莲章桢彦董杰丁文江
Owner SHANGHAI JIAOTONG UNIV
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