Unlock instant, AI-driven research and patent intelligence for your innovation.

Hydranlic external pressure shaping method and device for fusible internal mould pipe kind parts

A technology for pipe parts and components, which is applied in the field of hydroforming of complex pipe parts, can solve problems such as difficult demoulding, and achieve the effects of easy processing, low mold cost, and low equipment cost

Inactive Publication Date: 2006-11-29
INST OF METAL RESEARCH - CHINESE ACAD OF SCI
View PDF0 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to propose a method and device for hydraulic external pressure forming of a fusible internal mold for complex shape pipes in view of the shortcomings of existing hydraulic external pressure forming, which solves the problem of internal mold demoulding during hydraulic external pressure. Difficult problems, the present invention has simple structure, convenient operation, good forming effect, and saves materials. It is a new hydraulic external pressure forming method and device for pipe parts, which is suitable for the forming method of complex shape pipe parts and can solve the problem. Insufficiency of Existing Internal High Pressure Forming Technology for Pipe Fittings

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Hydranlic external pressure shaping method and device for fusible internal mould pipe kind parts
  • Hydranlic external pressure shaping method and device for fusible internal mould pipe kind parts

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] The technical solutions of the present invention will be further described below in conjunction with the examples.

[0033] The fusible internal mold external force hydroforming is realized by using the property that the melting point of the fusible material is lower than that of the metal material. The structure of the forming device is shown in Figure 1-2 shown. The device includes a sealing ring 1, a tube blank 2, a fusible inner mold 3, a processed part 4, a hydraulic chamber 5, and an outer mold 6. The fusible inner mold 3 and the outer mold 6 are coaxial and have a structure inside and outside, and the fusible inner mold A pipe blank 2 is installed between the inner mold 3 and the outer mold 6 , a hydraulic chamber 5 is provided in the outer forming area of ​​the inner fusible mold 3 , and a sealing ring 1 is arranged at the intersection of the two ends of the inner fusible mold 3 and the outer mold 6 .

[0034] The present invention implements environment and ne...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Melting pointaaaaaaaaaa
Login to View More

Abstract

An externally hydraulic forming method with fusible internal mould for manufacturing the tubular part with complex shape includes such steps as preparing a fusible internal mould, putting the raw material of said tubular part on the surface of said internal mould, pressurizing in the sealed hydraulic chamber to a predefined value to form a tubular part, and heating to fuse the internal mould.

Description

technical field [0001] The invention relates to a hydraulic external pressure forming method and device for pipe parts with a fusible internal mold, which is mainly used in the field of hydraulic forming of complex pipe parts. Background technique [0002] Hydroforming is a plastic processing technology that uses liquid pressure to shape workpieces. Internal high pressure forming of pipes is a process in which the metal pipes are subjected to high-pressure fluid inside, causing the pipes to bulge and deform outwards to obtain the desired shape. High-pressure fluids usually use water or hydraulic oil, and in some special applications, gases, low melting point metals, powders, viscous polymers, etc. are also used. [0003] Internal high pressure forming is a modern plastic processing technology that uses liquid as the pressure transmission medium and uses internal high pressure (working pressure is usually 100-400MPa, up to 1000MPa) to deform metal tube blanks into complex-sh...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B21D26/02B21D37/12B21D26/033B21D26/047
Inventor 张士宏王忠堂王本贤尚彦凌
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI