Influence of Steel Grain Size on Residual Stress in Grinding Processing

Masahide Gotoh; Katsuhiro Seki; M. Shozu; Hajime Hirose; Toshihiko Sasaki

doi:10.4028/www.scientific.net/MSF.638-642.2389

Paper Titles

The Precipitation Strengthening Effect of Nb, Ti and Al in Cast/Wrought Ni-Base Superalloys
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Study on the Ultrahigh Speed Grinding of Superhard Materials with Squeeze Film Damping Technology
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The Halogen Effect for Ni-Base Superalloys – A Thermodynamic Study
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Residual Stress in PVD-Coated Carbide Cutting Inserts - Applications of the sin²ψ and the Scattering Vector Method
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Influence of Steel Grain Size on Residual Stress in Grinding Processing
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X-Ray Investigation on Strength of Thin Films
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The Effect of Grain Size on Strain Determination Using a Neutron Diffractometer
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Development of Twin Fractions and Microstresses of the Hot Extruded Magnesium Alloy AZ31 under Cyclic Loading Conditions
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Single Crystal Elastic Constants of the MAX Phase Ti₃AlC₂ Determined by Neutron Diffraction
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Influence of Steel Grain Size on Residual Stress in Grinding Processing

Abstract:

The fine-grained rolling steels NFG600 and the conventional usual rolling steels SM490 were processed by sand paper polishing and mechanical grinding to compare the residual stress generated after processing. The average grain size of NFG600 and SM490 is 3 μm and 15μm respectively. Therefore improvement of mechanical properties for such fine-grained steels is expected, it is important to understand the residual stress state of new fine-grained materials with processing. In this study, multi axial stresses of two kinds of specimens after polishing and grinding were measured by three kinds of analysis methods including cos-ψ method. As a result, as for σ33, the stress of NFG was compression, though that of SM490 was tension.