Investigation of the burnishing process with PCD tool on non-ferrous metals

Abstract

It is well known that the no-chip machining process, burnishing, can easily improve surface roughness, waviness and hardness. To get the practical useful parameters, the effects of various burnishing parameters (spindle speed, depth, feed, burnishing radius and lathe) on surface roughness and waviness of the non-ferrous components were studied experimentally with a theoretical analysis. The experiments were conducted with a simply designed cylindrical surfaced polycrystalline diamond tool developed by us. It was found that smaller parameters do not mean lower surface roughness or waviness and different optimum burnishing parameters can be got under different burnishing conditions.

Determination of Optimal Small Ball-Burnishing Parameters for Both Surface Roughness and Superficial Hardness Improvement of STAVAX

“…As indicated in Shiou et al [13], the range of burnishing speed was from 200 mm/min to 800 mm/min. According to the study of Banh et al [14], the magnitude of optimal burnishing force is approximately six times smaller than the maximum burnishing force estimated from the boundary analysis of burnishing proposed by Luo et al [24]. For STAVAX material with yielding strength of 1200 MPa, and the 0.5-mm-diameter burnishing ball, the estimated maximum burnishing force is 52.54 N. Hence, the three levels of burnishing forces in this study were 5,10, and 15 N. In agreement with the study of Tam et al [1], although the smaller the step-over produces the lower height of irregularities (Fig.…”

Study of the mechanism of the burnishing process with cylindrical polycrystalline diamond tools

“…The increase of surface strength mainly serves in terms of improved fatigue behavior of workpieces under dynamic load. In addition, this process transforms tensile residual stresses, present in the surface zone after turning, into compressive residual stresses [1][2][3][4][5][6][7][8]. Under certain conditions, this process provides a manufacturing alternative to grinding, precision turning and honing operations [1].…”

“…The experimental analysis was mainly undertaken to assess the effects of burnishing feed, speed and depth [1][2][3]5,8,9]. The studies concentrated on determining optimum working parameter ranges in different situations, which are valuable for the application of the burnishing process as the first step.…”

Evaluating the Reliability of Groove Turning for Piston Rings in Combustion Engines with the Use of Neural Networks

“…Roughness parameters are frequently used for evaluating the reliability of technological operations. In [1,2] a description is given of an investigation of the Ra surface roughness parameter in the context of evaluation of the reliability of a burnishing operation. In turn, Kuczmaszewski and Pieśko used a roughness parameter to evaluate the surface of a groove, and thereby assess the wear on milling tools [3].…”