Railway vehicle side wall and welding method thereof

A rail vehicle side wall, welding method technology, applied in welding equipment, laser welding equipment, railway car body and other directions, can solve the problem of stainless steel side wall deformation and other problems, to solve the spot welding indentation, ensure mechanical strength and safety, The effect of a high degree of modularity

Active Publication Date: 2013-04-03
CRRC QINGDAO SIFANG CO LTD
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0009] The railway vehicle side wall and welding method thereof according to the present invention aims to solve the problems in the prior art mentioned above by reducing connecting parts and improving the degree of modularization. In order to avoid the occurrence of spot welding indentations, The laser welding method is used to effectively improve the welding strength, control and reduce the heat input, so as to solve the deformation problem of the stainless steel side wall

Method used

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  • Railway vehicle side wall and welding method thereof
  • Railway vehicle side wall and welding method thereof
  • Railway vehicle side wall and welding method thereof

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Experimental program
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Effect test

Embodiment 1

[0048] Embodiment 1, combining Figure 1 to Figure 6 , the rail vehicle side wall mainly includes:

[0049] Several groups of side wall units 1, door frames 2, side wall side beams 3 and threshold 7 are connected into an integral structure. in,

[0050] The side wall unit 1 includes several sets of overlapping beams 10 and columns 11 , the beams 10 and the exterior wall panels are connected by laser welding, and the beams 10 and columns 11 are connected by laser welding.

[0051]The door frame 2 has an overall structure in which the doorway beam 8 and the doorway columns 9 on both sides are connected by tailor welding.

[0052] The door frame 2 and the side wall unit 1 are connected by welding;

[0053] At the center line above the door frame 2 , two adjacent side wall units 1 are butted with a gap through the door butt joint element 4 .

[0054] At the same time, the door butt joint element 4 is connected with the door frame 2 by means of plug welding;

[0055] At the t...

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Abstract

The invention relates to a railway vehicle side wall and a welding method thereof. A manner of reducing connecting parts and improving the modularization degree is adopted; and for avoiding generating spot welding indentations, the side wall integrally adopts a laser welding manner to effectively improve welding intensity and control and reduce heat input so as to solve the problem of deformation of a stainless steel side wall. The side wall comprises a plurality of groups of side wall units, a door frame, a side wall upper edge beam and a threshold which are connected into one integral structure. The door frame is in welding connection with the side wall units; above the door frame, each two adjacent side wall units are abutted by a doorway abutting element and meanwhile, the doorway abutting element is in welding connection with the door frame; each side wall unit comprises a plurality of groups of beams and uprights, which are overlapped; and the beams are connected with the uprights in a laser welding manner.

Description

technical field [0001] The invention relates to an improvement of a rail vehicle side wall structure and a welding processing method applied to a stainless steel vehicle body, and belongs to the field of mechanical manufacturing. Background technique [0002] With the development of my country's social economy and the acceleration of the pace of life, rail transit has become the most important means of transportation in urban traffic. Based on the higher requirements for the safety, economy and appearance quality of rail vehicles, such as subways, urban rails or inter-city express rails, stainless steel materials are usually used as the main material for the car body, and the more common welding processing method is spot welding craft. [0003] Although the existing spot welding process can improve the mechanical strength and tightness of the stainless steel car body, spot welding indentations will inevitably remain on the side wall outer panels. Such indentations are deter...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B61D17/08B23K28/02B23K26/20B23K26/21B23K26/346
Inventor 刘岳平钟元木田爱琴丁叁叁周建乐龚明
Owner CRRC QINGDAO SIFANG CO LTD
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