APPLIED LASER, Volume. 44, Issue 11, 83(2024)
Effects of Sandblasting and Laser Surface Texture on the Surface and Bond Properties of Different Substrates
This study examines the influence of sandblasting and laser surface texture (LST) treatments on the surface and bonding properties of 7075 aluminum alloy, TC4 titanium alloy, and 05Cr17Ni4Cu4Nb stainless steel. Both sandblasting and two variants of LST treatments were applied to the three substrates. The surface morphology and surface roughness (Sa) were observed and measured through laser confocal microscopy. The surface morphology of treated test pieces were observed by scanning electron microscope and the residual stress of treated and untreated test pieces were measured by residual stress meter. The peel strength of test pieces after pasting the liner were tested by intelligent electronic tension machine. The surface morphology of metal substrates after stripping the liner were observed by visual and stereomicroscope. The results shows that the surface morphology of different substrates after the same sandblasting or LST treatment is obviously different. Sandblasting and LST treatments can introduce residual compressive stress and residual tensile stress on the surface of the three substrates, respectively. And the residual stress changes of 05Cr17Ni4Cu4Nb stainless steel are the most obvious. After two LST treatments, the peel strength between 7075 aluminum alloy and liner reached 0.849 N/mm and 0.78 N/mm, respectively, which increased 333.2% and 298.0% compared with the sandblasted sample, and the peel strength between TC4 titanium alloy and liner reached 0.65 N/mm and 1.3 N/mm, which increased 150.0% and 400.0% compared with the sandblasted sample. In addition to 05Cr17Ni4Cu4Nb stainless steel, LST treatments can increase the peel strength and bond integrity between 7075 aluminum alloy with TC4 titanium alloy with liner.
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Huang Xiongrong, Zhang Xuanjun, Shao Ruonan. Effects of Sandblasting and Laser Surface Texture on the Surface and Bond Properties of Different Substrates[J]. APPLIED LASER, 2024, 44(11): 83
Received: Apr. 8, 2024
Accepted: Mar. 11, 2025
Published Online: Mar. 11, 2025
The Author Email: Xuanjun Zhang (zxj@laser.net.cn)