Surface Integrity of Metal Spun Parts

Abstract:

Sheet metal spinning is one of the forming processes based on gradual shaping of metal blank into an axisymetric part by a roller according to a model (mandrel). Very significant feature of spinning is ability to produce components with high mechanical properties and high quality of surface layers. The paper brings the results of surface integrity analysis of mild steel parts produced by CNC multi-pass conventional metal spinning. The influence of the spindle speed, feed rate, workpiece geometry and planar anisotropy of the blank on the residual stresses distribution and microhardness of formed part surfaces is studied. For experiment design, an orthogonal array L27(3¹³) was used and ANOVA (Analysis of Variance) was carried out. Based on the results it is determined that the geometry of the formed part (radius, conical area, cylindrical area) is the significant factor influencing both residual stresses and microhardness of the formed part surfaces.

• Periodical: Key Engineering Materials (Volume 581)
• Pages: 391-396
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.581.391
• Online since: October 2013
• Authors: Peter Šugár, Jana Šugárová, Ján Petrovič
• Keywords: ANOVA, Metal Spinning, Residual Stress, Roughness, Taguchi Method

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