1800MPa-grade ultrahigh-strength hot-formed steel plate resistance spot welding technology

An ultra-high-strength, resistance spot welding technology, applied in resistance welding equipment, resistance electrode bases, electrode features, etc., to ensure quality, improve process environment, and form good solder joints

Inactive Publication Date: 2021-12-31
SHENYANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Solve the problem of resistance spot welding when this ultra-high-strength hot-formed steel plate is used in automobile production, and ensure the quality of such welded joints

Method used

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  • 1800MPa-grade ultrahigh-strength hot-formed steel plate resistance spot welding technology
  • 1800MPa-grade ultrahigh-strength hot-formed steel plate resistance spot welding technology
  • 1800MPa-grade ultrahigh-strength hot-formed steel plate resistance spot welding technology

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Embodiment Construction

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0021] In the invention, two ultra-high-strength hot-formed steel plates are overlapped and placed on the working machine tool of the resistance spot welding robot, and the welding is performed after parameters are adjusted through a teaching panel. Ultra-high-strength hot-formed steel is the same steel grade and has the same thickness. The resistance spot welding robot uses the same type of electrode with the same end surface area. The specific method describ...

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Abstract

The invention discloses a 1800MPa-grade ultrahigh-strength hot-formed steel plate resistance spot welding technology, and relates to a high-strength steel plate spot welding technology. According to the technology, two pieces of ultrahigh-strength hot-formed steel are lapped together and clamped by a clamp, a resistance spot welding robot teaching panel is used, the position of a path adjusting electrode is set, a welding part is positioned at the central point of the lapped part, a welding instruction is added to the teaching panel, the welding pressure is changed, after welding parameters are adjusted through a welding machine, the welding instruction is input to complete the welding process once, and a resistance spot welding joint is formed. The manufacturing and processing technology capable of perfecting the ultrahigh-strength hot-formed steel plate is provided, and the ultrahigh-strength hot-formed steel plate can be favorably combined together in production and manufacturing, so that the comprehensive performance of the product is remarkably improved.

Description

technical field [0001] The invention relates to a spot welding process for high-strength steel plates, in particular to a resistance spot welding process for 1800MPa-level ultra-high-strength hot-formed steel plates. Background technique [0002] Ultra-high-strength steel is the development trend of future automotive materials. Although lightweight materials such as aluminum alloys, magnesium alloys, and carbon fibers are also used in current automobile manufacturing, due to some of their own shortcomings, such as high cost and poor corrosion resistance, they are cost-effective in manufacturing. It is not high, so steel is still the main raw material in automobile production. According to research, if the mass of the car is reduced by 100kg, it means that more than 300L of fuel will be saved in the 150,000km distance, which greatly reduces the use of energy and the emission of pollutants. The 1.0-2.5mm thick ultra-high-strength hot-formed steel plate plays an important rol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K11/11B23K11/31B23K11/36
CPCB23K11/11B23K11/31B23K11/36
Inventor 刘岩叶海青姚宇刘佳朋周桂申
Owner SHENYANG UNIV
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