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A welding process for front and rear sub-frames of lightweight dissimilar aluminum materials

A welding process, the technology of the front subframe, applied in welding equipment, manufacturing tools, metal processing and other directions, can solve the problems of low structural strength, large overall quality of the subframe, affecting the power performance of electric vehicles, etc., to increase the cruising range , Improve the effect of solderability and reliable welding process

Active Publication Date: 2022-01-28
辽宁忠旺铝合金精深加工有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In view of this, the present invention provides a front and rear sub-frame welding process of lightweight dissimilar aluminum materials in order to solve the problems in the prior art that the overall mass of the sub-frame is large, the structural strength is low, and the power performance of the electric vehicle is affected.

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  • A welding process for front and rear sub-frames of lightweight dissimilar aluminum materials
  • A welding process for front and rear sub-frames of lightweight dissimilar aluminum materials

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Embodiment Construction

[0026] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the diagrams provided in the following embodiments are only schematically illustrating the basic concept of the present invention, and the following embodiments and the features in the embodiments can be combined with each other in the case of no conflict.

[0027] Wherein, the accompanying drawings are for illustrative purposes only, and represent only schematic diagrams, rather than physical drawings, and should...

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Abstract

The invention belongs to the technical field of vehicle manufacturing, and relates to a welding process for the front and rear sub-frames of lightweight dissimilar aluminum materials. During welding, the flat corner welds are welded first, and then the vertical corner welds are welded. The heat input at the position where the flat corner welds are welded first can play The effect of preheating the casting increases the depth of penetration and avoids the occurrence of non-fusion defects. The weight of the front and rear sub-frames after welding through this welding process is only one-third of the original, which reduces the weight of high-end vehicles and increases the weight of the entire vehicle. The cruising range, and the front and rear sub-frames are corrosion-resistant, do not need anti-rust paint, reasonable welding sequence and welding parameters effectively control the welding deformation, provide a reliable welding process for the connection of dissimilar aluminum materials, and ensure welding quality.

Description

technical field [0001] The invention belongs to the technical field of vehicle manufacturing and relates to a welding process for front and rear sub-frames of lightweight dissimilar aluminum materials. Background technique [0002] With the development of science and technology, energy problems are becoming more and more prominent, and people have higher and higher requirements for the performance of vehicles, especially for electric vehicles, the cruising range of electric vehicles is one of the most concerned issues at present. Among them, in order to improve the comfort and maneuverability of electric vehicles, a sub-frame structure is added to electric vehicles. However, the sub-frame of existing high-end electric vehicles is made of all-cast aluminum alloy through five-axis machining. The overall quality of the sub-frame is relatively large, and the structural strength of the sub-frame is reduced. The weight of the electric vehicle greatly affects the power of the elec...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K9/16B23K9/235
CPCB23K9/16B23K9/235B23K2101/006
Inventor 于欣
Owner 辽宁忠旺铝合金精深加工有限公司
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