Further improvements in some properties of shot peened components using the burnishing process

Influence of roller burnishing contact width and burnishing orientation on surface quality and tribological behaviour of Aluminium 6061

“…Aluminium 6061 was selected because of its wide range of applications in the industry such as aircraft fittings, truck wheels, brake disc, hinge pins, couplings, brake pistons and hydraulic pistons [6,8]. Workpieces were received in the form of cylindrical rod and was initially turned into a circular disc of 25 mm diameter and 10 mm thickness.…”

“…The specimen is loaded normally with dead weight (3) through a loading lever (4) which is supported on a frame (5). The loading arm (4) is balanced horizontally by a balancing weight (6). A 60 mm diameter, stainless steel counterface cup (7) was polished using abrasive paper (silicon carbide electro coated 2000 CW grade) to an average roughness of 2.19 m. This surface was refreshed before each test to ensure its initial roughness is remained almost the same.…”

“…Some researchers concentrated on burnishing parameters such as burnishing speed [1][2][3][4][5][6][7], burnishing depth [6], burnishing force [1][2][3], burnishing feed rate [2,3], surface hardness [9], number of tool passes [3,7,8] and burnishing tool dimension [3,9], in relation to only surface roughness and hardness. From the mechanical properties perspective, burnished surfaces gain some improvement in tensile and yield strengths [8,10].…”

“…It appears from the literature survey that earlier investigations concentrated on burnishing process dealing mostly with surface finish and surface hardness [2,3,[6][7][8][9][10][11][12] and little focus on tribological characteristics [1,3,4,9]. Moreover, to the authors' best knowledge, no works considered the influence of burnishing orientations on tribological properties.…”

Ductility improvement of aluminum 1050A rolled sheet by a newly designed ball burnishing tool device

“…In addition, this process transforms tensile residual stress induced in the near surface by machining into compressive residual stresses, giving several improvements to mechanical properties [2]. Several authors have investigated the effect of burnishing on mechanical properties improvement such as hardness [3][4][5], surface quality [6][7][8][9][10][11][12], state of residual stress [13][14][15][16], fatigue life, and corrosion of the workpiece [17,18]. In a recent study, Gharbi et al [8] have identified the effect of the burnishing parameters on the surface quality and microstructure properties of AISI 1010 steel plates.…”