Shear device and method for detecting magnetic pulse welding connector performance

A technology for welding joints and shearing devices, which is applied to measuring devices and uses a stable shear force to test the strength and strength characteristics of materials, can solve problems such as the strength distribution of the connection area that cannot meet the detection of welding joints, and achieve high efficiency and speed. Effectiveness of testing, simple operation, wide versatility

Pending Publication Date: 2019-01-04
BEIJING MECHANICAL EQUIP INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above analysis, the present invention aims to provide a shearing device and method for detecting the performance of magnetic pulse welded joi

Method used

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  • Shear device and method for detecting magnetic pulse welding connector performance
  • Shear device and method for detecting magnetic pulse welding connector performance
  • Shear device and method for detecting magnetic pulse welding connector performance

Examples

Experimental program
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Example Embodiment

[0034] Example one

[0035] A specific embodiment of the present invention, such as Figure 1 to Figure 3 As shown, a shearing device for testing the performance of magnetic pulse welding joints is disclosed, including a compression rod 1, a sample positioning piece 4, a compression block 5 and a base 6; the base 6 is used to fix the entire shearing device, the base 6 Compression block 5 and sample positioning sheet 4 are arranged from bottom to top, that is, the pressure block 5 is located above the base 6 and the sample positioning sheet 4 is located above the pressure block 5; the pressure block 5 is provided with a first aperture The sample positioning sheet 4 is provided with a second through hole with a second aperture, the first aperture is smaller than the second aperture, and the first through hole and the second through hole are arranged concentrically; the first aperture is larger than that of the inner tube 8 The outer diameter is smaller than the outer diameter of th...

Example Embodiment

[0044] Example two

[0045] Another specific embodiment of the present invention discloses a method for detecting the performance of a magnetic pulse welded joint. Specifically, the shearing device for detecting the performance of a magnetic pulse welded joint in the first embodiment is used for the performance of the magnetic pulse welded joint. , Including the following steps:

[0046] Step 1: Before the shearing experiment, fix the pressure block 5 and the sample positioning sheet 4 on the base 6, and the sample positioning sheet 4 is located between the base 6 and the pressure block 5;

[0047] Step 2: Place the welding sample slice 7 in the second through hole of the sample positioning sheet 4, and place the outer tube 9 of the welding sample slice 7 on the annular shearing part, using other methods such as fixing bolts 3 or snaps Fix the positioning block 2 with at least two fixing bolts 3 and symmetrically arranged; the pressing rod 1 is pressed against the inner tube 8 of th...

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Abstract

The invention relates to a shear device and method for detecting magnetic pulse welding connector performance, belongs to the technical field of mechanical performance testing device and welding, andsolves the problem that an existing shear device cannot detect the strength distribution of a welding connector connecting area. The shear device comprises a pressing rod and a base and is characterized in that a pressed block and a sample positioning piece are sequentially arranged on the base from bottom to top; the pressed block is provided with a first through hole with a first hole diameter,the sample positioning piece is provided with a second through hole with a second hole diameter, the first hole diameter is smaller than the first hole diameter, and the first through hole and the second through hole are concentric; the first hole diameter is larger than the outer diameter of an inner pipe and smaller than the outer diameter of an outer pipe; the rod diameter of the pressing rod is smaller than the outer diameter of the inner pipe and larger than the inner diameter of the inner pipe; the part, exceeding the inner circumference of the sample positioning piece, of the inner circumference of the pressed block is an annular shear part; the pressing rod and the shear part jointly complete the shearing of a sample slice. The shear device and method can detect the strength distribution of the welding connector connecting area.

Description

technical field [0001] The invention relates to the field of mechanical performance testing device and welding technology, in particular to a shearing device for testing the performance of magnetic pulse welding joints. Background technique [0002] In aerospace, automobile and other manufacturing fields, the demand for connection methods of small-diameter dissimilar material pipe parts is increasing, such as liquid hydrogen and liquid fuel tank pipes of rocket engine systems, connection between guide belts and projectiles of aircraft cannons, steering shafts of automobiles, consumer electronics, etc. Acoustic exhaust pipe, common rail fuel injection system, etc. The magnetic pulse welding technology came into being based on these requirements. Its welding principle is similar to that of explosive welding. It uses a strong magnetic field to generate a strong electromagnetic force between the metals to be welded, and then makes the two metals collide violently together, and r...

Claims

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Application Information

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IPC IPC(8): G01N3/24
CPCG01N3/24G01N2203/0025G01N2203/04
Inventor 阚纯磊王俞凯梁迎彬李建冬崔广志
Owner BEIJING MECHANICAL EQUIP INST
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