Archive image from page 55 of Development of a spherical acrylic. Development of a spherical acrylic plastic pressure hull for hydrospace application . developmentofsph00stac Year: 1970 Circumference of 8-31/32-in. chord = in. Circumference of 9-17/32-in. chord = in. Length of the arc = in. Length of the arc = in. Area of concave side = Area of convex side = Cross Section at Centerline Variation in Thickness of the Formed Part Point No. Thickness (in.) 1 2 3 4 5 6 7 8 9 Locatio
Archive image from page 55 of Development of a spherical acrylic. Development of a spherical acrylic plastic pressure hull for hydrospace application . developmentofsph00stac Year: 1970 Circumference of 8-31/32-in. chord = in. Circumference of 9-17/32-in. chord = in. Length of the arc = in. Length of the arc = in. Area of concave side = Area of convex side = Cross Section at Centerline Variation in Thickness of the Formed Part Point No. Thickness (in.) 1 2 3 4 5 6 7 8 9 Location of Points on Flat Blank Figure 25. Typical sphericity and thickness of spherical sectors after die pressing to nominal radius of curvature. In addition to thickness, the curvature of the spherical sector was also measured prior to annealing. In general, the curvature of the spherical sector was uniform and closely matched that of the female die. The external radius of the sector was within to inch of the mold curvature. The largest deviations occurred at the center and at the edge of the sector, while midway between the center and the edge there was the least deviation 52
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Photo credit: © Actep Burstov / Alamy / Afripics
License: Licensed
Model Released: No
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