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We measured the distribution at blank holder force (BHF) according to the ratio of sheet metal drawing, under the constant conditions of profile radius of punch and die.
The maximum punch load increased remarkably upon decreasing the profile radius of cylindrical punch and the initial diameter of the inner hole of blank.
The deep drawing is affected by many process variables, such as blank shapes, profile radius of punch and die, formability of materials and so on.
Through analyzing the influences of groove shape parameters on film thickness and heat flux, we found that both of them were significantly influenced by the pitch, height and profile radius of the groove.
The experiments results showed that the arc-shaped diamond wheel (diameter of 200 mm) with 4 μm profile error (PV) and 1.0023 mm profile radius, and the V-shaped diamond wheel with 22.5 μm V-tip radius and 120.03° profile angle could be obtained by on-machine dry EDT.
However, as the pressure angle increases past 20°, the bending strength can be expected to increase because of the increase in the tooth root thickness, and the contact pressure strength can be expected to increase because of the larger profile radius of curvature.
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A standard rail UIC 60 and standard wheel profile, as per the standards of Indian railways, were taken for different rail profile radii, wheel profile radii and wheel profile tapers.
The effects of notch profile radii on UHMWPE fracture behaviour, predicted stress/strain distribution, triaxial state of stress and hydrostatic pressure across the neck have been studied.
In a large number of measuring and characterization methods, the sphere size distribution of particles embedded in a medium has to be estimated from profile radii observed in cross sections or thin slices.
In this contribution we propose a method for unfolding the sphere size distribution given a sample of profile radii which combines the advantages of kernel estimators with those of regularization methods.
The frequency distribution of the profile radii and the probability distributions of islet radii after Wicksell transform are provided in Electronic supplementary material (ESM) Fig. 1.
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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com