Friction Welding of Aluminium and Aluminium Alloys with Steel

Andrzej Ambroziak,Ewa Harapińska,Marcin Winnicki,Paweł Kustroń,Paweł Sokołowski,Marcin Korzeniowski

doi:10.1155/2014/981653

Abstract

The paper presents our actual knowledge and experience in joining dissimilar materials with the use of friction welding method. The joints of aluminium and aluminium alloys with the different types of steel were studied. The structural effects occurring during the welding process were described. The mechanical properties using, for example, (i) microhardness measurements, (ii) tensile tests, (iii) bending tests, and (iv) shearing tests were determined. In order to obtain high-quality joints the influence of different configurations of the process such as (i) changing the geometry of bonding surface, (ii) using the interlayer, or (iii) heat treatment was analyzed. Finally, the issues related to the selection of optimal parameters of friction welding process were also investigated.

Highlights

The family of friction welding processes includes several methods, such as rotary friction welding (RFW), linear friction welding (LFW), and the newest one, friction stir welding (FSW)
Even the analysis of the aluminiumiron dual system leads to the conclusion that sufficiently long time and high temperatures of the process can cause
The main component of intermetallic phases, which were created at the border of the steel-aluminium joint, is an Al3Fe [7]

Summary

Introduction

The family of friction welding processes includes several methods, such as rotary friction welding (RFW), linear friction welding (LFW), and the newest one, friction stir welding (FSW). To obtain high-quality joint it is necessary to know and analyze phase diagram of the two welded materials. There are some additional factors, for example, coefficients of thermal expansion of welded materials and their melting temperatures, the knowledge of which is necessary in the case of joining dissimilar materials [3,4,5,6]. The presented review summarizes our actual knowledge about the friction welding of aluminium and aluminium alloys with different types of steel. This paper describes both authors’ research as well as many other studies of scientists dealing with the presented subject

Results and Discussion

AlCuMgNi-42CrMo4

80 Sample 1 Sample 2 Sample 3

C Cu Mo Si Mn Mg Cr Ni Ti Zn

Conclusion