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Manufacturing method of tubular parts

A manufacturing method and technology for parts, applied in the field of machining, can solve the problems of cracked welds, difficult forming of metal plates, inability to manufacture small-diameter thick-walled long tubular parts, etc., so as to avoid weld cracks and solve difficult forming. , effective and easy to manufacture

Active Publication Date: 2019-11-12
WUHAN MARINE MACHINERY PLANT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the inner diameter of the tubular part is small, the pipe wall is thicker, and the length is longer, for example, the outer diameter of a tubular part is 250mm, the inner diameter is 200mm, the thickness of the pipe wall is 25mm, and the length is 3000mm. Parts are often difficult to mold during the
Even if it is barely formed, the weld will bear a lot of force, causing the welded seam to crack
Therefore, the existing manufacturing process of tubular parts cannot realize the manufacture of small-diameter thick-walled long tubular parts

Method used

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  • Manufacturing method of tubular parts

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Embodiment Construction

[0053] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0054] An embodiment of the invention provides a method for manufacturing a tubular part. figure 1 It is a flowchart of a method for manufacturing a tubular part provided by an embodiment of the present invention. see figure 1 , the manufacturing method includes:

[0055] Step 101: Draw multiple pressing lines on the metal plate.

[0056]In this embodiment, the thickness of the metal plate is equal to the wall thickness of the tubular part, and the length of the metal plate is equal to the length of the tubular part. In practical applications, the width of the metal plate can be larger than the outer diameter of the tubular part, and the excess part can be removed during the beveling process.

[0057] figure 2 Schematic diagram o...

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Abstract

The invention discloses a manufacturing method of tubular parts, and belongs to the field of machining. The manufacturing method comprises the following steps that a plurality of pressing lines are drawn on metal plates, thicknesses of the metal plates are equal to the wall thicknesses of the tubular parts, and the lengths of the metal plates are equal to the lengths of the tubular parts; each pressing line is parallel to the length direction of the metal plate, and the pressing lines are arranged at intervals in the width direction of the metal plates; the metal plates are pressed according to each pressing line to enable each metal plate to be in a semi-ring shape, grooves are formed at the two ends of the metal plates, and the grooves of the two metal plates are abutted against each other for welding to form the tubular parts. According to the manufacturing method, and the manufacturing of the small-caliber thick-wall long tubular parts is realized by multiple times of pressing.

Description

technical field [0001] The invention relates to the field of mechanical processing, in particular to a method for manufacturing tubular parts. Background technique [0002] Tubular parts are a kind of parts widely used in mechanical devices. Conventional tubular parts are usually manufactured by first rolling a metal sheet and then welding and fixing it. However, when the inner diameter of the tubular part is small, the pipe wall is thicker, and the length is longer, for example, the outer diameter of a tubular part is 250mm, the inner diameter is 200mm, the thickness of the pipe wall is 25mm, and the length is 3000mm. Parts are often difficult to mold in the process. Even if it is barely formed, the weld will bear a lot of force, which will cause the welded seam to crack. Therefore, the manufacturing process of existing tubular parts cannot realize the manufacture of small-diameter thick-walled long tubular parts. Contents of the invention [0003] The embodiment of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00
CPCB23P15/00
Inventor 方松赵金明杨新明
Owner WUHAN MARINE MACHINERY PLANT
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