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Burnishing, deburring and tumbling are specific applications that fall under the broad term mass finishing. Mass finishing refers to a varied group of surface conditioning processes used in manufacturing operations. Cleaning and polishing are also examples of surface conditioning applications...

Surface enhancement technologies such as shot peening (SP), laser shock peening (LSP), and low plasticity burnishing (LPB) can provide substantial fatigue life improvement. However, to be effective, the compressive residual stresses that increase fatigue strength must be retained in service. LPB...

...maxima at the transition between the. stir and heat-affected zones. Residual. tension at the edges of the stir zone has been. associated with stress corrosion cracking. and corrosion fatigue crack growth. initiation. This fatigue debit has been. overcome using low plasticity burnishing. (LPB...

This paper describes the use of low plasticity burnishing (LPB) to enhance the corrosion fatigue strength in 7475-T7351 and 2024-T351, without alteration of environment, material or component design....

A test program was set up by AFRL-VASM to study the effect of low plasticity burnishing (LPB) to mitigate fatigue debit due to pre-cracking damage in two feature specimens made of AA2024-T851 and designed to simulate features of aircraft structures. The LPB solution consisted of (a) designing...

...surface enhancement by low plasticity. burnishing (LPB) to eliminate or reduce the. surface tensile stresses necessary for corrosion. fatigue failure in AA7075-T6, without alteration. of environment, material or component design. The restoration of fatigue performance by LPB. processing of AA7075-T6 after...

...enhancement. processing can be used to place the FSW region. in compression to improve fatigue performance. Deep compressive residual stress distributions. produced by low plasticity burnishing (LPB). designed to improve fatigue and corrosion. fatigue performance in aluminum alloy FSW are. described...

Low Plasticity Burnishing (LPB) has been developed as a rapid, inexpensive surface enhancement method adaptable to existing CNC machine tools. LPB produces a deep layer of compression with minimal cold work of the surface, comparable to laser shock peening (LSP), but can be incorporated...

Low plasticity burnishing (LPB) is a surface. enhancement process with significant economic. and physical attributes that make it attractive for. component repair/refurbishment applications in. aging aircraft. The current work addresses the. efficacy of fatigue strength restoration by. applying LPB...

Low Plasticity Burnishing (LPB) has been investigated. as a post-weld surface treatment to improve the. corrosion fatigue performance of friction stir welded. (FSW) AA2219 plate. Welds were fabricated from 9.5. mm thick AA2219-T8751 plate. Residual stress. distributions mapped by x-ray diffraction...

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