Method for achieving circular ring connection by utilizing wrinkling of metal pipes

Abstract

The invention discloses a method for achieving circular ring connection by utilizing wrinkling of metal pipes, and belongs to the technical field of material connection. The phenomenon that a connecting pipe deforms plastically under the action of force is utilized, so that the connecting pipe is wrinkled in a non-constraint area, the wrinkles are further compacted so as to achieve the plastic connection between two metal rings. After plastic deformation of the connecting pipe, the strength of the connection part can be enhanced due to deformation strengthening, so that the connection is safeand reliable; and the number of preparatory steps is few, the operation is simple and convenient, the whole connecting process is green and pollution-free, and the operation is simple, convenient andefficient.

Description

technical field [0001] The invention belongs to the technical field of material connection, and in particular relates to a method for realizing ring connection by using corrugation of metal pipes. Background technique [0002] In the fields of machinery manufacturing, container manufacturing, and construction engineering, it usually involves connecting two metal rings together. The traditional methods are mainly bolted, welded, and riveted. However, there are problems to be optimized in all three connection methods: 1) Drilling holes on the metal ring for bolt connection requires uniform drilling of holes on the ring in advance, and the bolt connection method has multiple protruding parts on the surface of the ring , In some occasions, it will affect the subsequent use or assembly. At the same time, the bolts and nuts may loosen and fall off under the vibration environment, resulting in the possibility of connection failure. 2) The method of welding inside or on the edge of...

AI Technical Summary

Problems solved by technology

However, there are problems to be optimized in all three connection methods: 1) Drilling holes on the metal ring for bolt connection requires uniform drilling of holes on the ring in advance, and the bolt connection method has multiple protruding parts on the surface of the ring , affecting subsequent use or assembly in some occasions, and bolts and nuts may loosen and fall off under vibration conditions, resulting in the possibility of connection failure

2) The method of welding inside or on the edge of the ring is easy to generate harmful gas and cause environmental pollution

In addition, improper welding operations are prone to defects such as welding cracks, inclusions, pores and poor appearance of welds, which affect the service life of the workpiece

3) The method of riveting with rivets also needs to drill multiple holes on the metal ring, the process is relatively complicated, and there is a problem that the head of the rivet protrudes, which affects the appearance of the ring surface

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