Page 456 - 04. Subyek Engineering Materials - Manufacturing, Engineering and Technology SI 6th Edition - Serope Kalpakjian, Stephen Schmid (2009)

436 Chapter 16 Sheet-Metal Forming Processes and Equipment

|6.54. Suggest consumer-product designs that could l6.56. Inspect a common paper punch and observe the
utilize honeycomb structures. For example, an elevator can shape of the punch tip. Compare it with those shown in
use a honeycomb laminate as a stiff and lightweight floor Fig. 16.10 and comment on your observations.
material. l6.57. Obtain an aluminum beverage can and slit it in half
I6.55. Using a ball-peen hammer, strike the surface of lengthwise with a pair of tin snips. Using a micrometer, meas-
aluminum sheets of various thicknesses until they develop a ure the thickness of the can bottom and the Wall. Estimate
curvature. Describe your observations about the shapes the thickness reductions in ironing and the diameter of the
produced. original blank.