Weld Characteristics and Properties of Laser Wire Filling Welding for Thin-Coated Hot-Formed Steel

Journal Title: Automobile Technology & Material - Year 2024, Vol 39, Issue 1

Abstract

To reduce the adverse effect of aluminum silicon coating layer on the surface of steel plate on laser joint, laser wire filler welding joint with aluminum mass fraction less than 1% in weld was obtained by using thin-coated hot-formed steel material and laser wire filler welding technology. The macro and microstructure of the welded joint were analyzed, it was found that the welded joint was replaced by the whole martensite structure after hot forming,which avoided the softening phenomenon. The mechanical property analysis shows that the tensile strength of the sample increases from about 570 MPa to about 1 500 MPa after hot forming, and the weak link of the joint is located in the base material. High speed tensile has no adverse effect on the tensile strength of the joint, but the elongation at break is affected greatly.

Authors and Affiliations

Jiang Zhigong, Yang Baofeng, Li Tian, Wang Rui, Xu Hong

Keywords

Related Articles

Research on the Formability of Aluminum Sheet Rear Door Inner Plate Based on AutoForm Analysis

To address the issue of difficulty in designing and producing aluminum plate rear door inner plate caused by poor formability and ductility of aluminum plate material, complex shape of rear door inner plate, this paper...

Research on the Fasten Process of Coupler Based on Automatic Spindle Equipment

In order to improve working efficiency, operation accuracy and safety, and reduce the error rate, based on the automatic spindle equipment, after the engine is connected to the gearbox, the servo motor of the spindle e...

The Effect of Surfactants with Different Carbon Chain Lengths on the Properties of CeO2-ZrO2-Y2O3-La2O3 Materials

The effects of alkyl acid surfactants with different carbon chain lengths (decanoic acid, dodecanoic acid, tetradecanoic acid, hexadecanoic acid, octadecanoic acid) on the properties of CeO2- ZrO2- Y2O3- La2O3 (CZ) mate...

Analysis of Core Components of Proton Exchange Membrane Fuel Cell

At present, Proton Exchange Membrane Fuel Cell (PEMFC) has attracted people’s attention for the characteristics of high energy conversion efficiency, environmental protection and zero pollution. This paper analyzed the...

Pickling and Passivation Technology for Automobile Aluminum Parts

To improve the pickling and passivation process quality of aluminum part before body welding, this paper introduced the pickling and passivation process and common quality problems of aluminum parts before welding, as we...

Download PDF file
  • EP ID EP731927
  • DOI 10.19710/J.cnki.1003-8817.20230026
  • Views 75
  • Downloads 0

How To Cite

Jiang Zhigong, Yang Baofeng, Li Tian, Wang Rui, Xu Hong (2024). Weld Characteristics and Properties of Laser Wire Filling Welding for Thin-Coated Hot-Formed Steel. Automobile Technology & Material, 39(1), -. https://europub.co.uk/articles/-A-731927