The laser cladding of AA7075 powder onto a AA7075 substrate was conducted to evaluate the effect of heat treatment and measure residual stress between the clad layer and substrate in order to better understand the effect of laser cladding. The microstructure formed in the clad region was characteristic of a high cooling rate, which is typical for laser cladding. The heat affected zone showed co...

The surface finish was extensively studied in usual machining processes (turning, milling, and drilling). For these processes, the surface finish is strongly influenced by the cutting feed and the tool nose radius. However, a basic understanding of tool/surface finish interaction and residual stress generation has been lacking. This paper aims to investigate the surface finish and residual stre...

In the present paper the effects of the thermal and mechanical actions on the residual stress field occurring in friction stir welding (FSW) of AA7075-T6 were investigated. Both numerical and experimental analyses were carried out to highlight the metallurgical phenomena and induced residual stresses in FS welded blanks. The welding process was simulated using a continuous rigid-viscoplastic fi...

Abstract A process chain of compound casting and co-extrusion AA7075/6060 bilayer billets is introduced to manufacture hybrid components with strength in the core good corrosion-resistance shell. Using optimized parameter, metallurgical bonding between shell AA6060 AA7075 can be achieved through remelting recrystallization substrate AA7075. The locally unequal thermal conditions at interface in...

Low-temperature incipient melting and high deformation resistance of aluminium alloy AA7075 place extraordinary demands on extrusion die design and process optimization, especially when the shape of the extrudate is complex. The present case study was aimed at combining the considerations on die design and process optimization for the alloy to manufacture a complex solid profile with large diff...

High-strength aluminum alloys are of increasing interest to the aerospace and automotive industry for critical high-strength components. B-pillars and door beams being of particular interest to the automotive industry Refill friction stir spot welding (RFSSW) offers an attractive means of joining these difficult-to-weld alloys since bulk melting is avoided and no exit hole is left. In this stud...

This article aims in exploring the dry sliding wear performances on aluminum (AA7075) metal matrix composites reinforced with molybdenum disulphide which is a solid lubricant using response surface methodology (RSM). Specific Wear Rate (SWR) for AA7075 pure alloy, AA7075+2wt% and AA7075+4wt% were measured according to ASTM G99 standards pin-on-disc apparatus. Design of experiments was selected ...

Aluminum AA7075, graphene nanoplates (GNP), boron nitride (BN), and vanadium carbide (VC) are used to fabricate hybrid nanocomposite matrices. BN VC serve as secondary reinforcement particles in the fabrication of composites, with (GNP) a key component process. Friction stir processing (FSP) was manufacture composite matrix; it also has major role improving microstructure’s grain refinement, we...

We analyze the role of different rivet and die design parameters on feasibility quality self-piercing riveting (SPR) joining metallic sheet stacks. In particular, a similar aluminum-to?aluminum stack (AA2019/AA7075-F) dissimilar aluminum-to-steel (AA7075-F/BA0270) is investigated, both experimentally numerically. Towards this, materials are characterized to obtain their elastoplastic fracture a...