Explanation The hammerhead chipped formed because of the formation of untempered martensite. The untempered martensite of 0.6% carbon would have a hardness of about Rockwell C 65 and would be extremely hard and brittle, quite likely to crack upon impact. Possible solutions to the problem includes, Alteration of the grinding procedure to prevent the generation of such excessive temperatures A required furnace retempering of the entire head prior to reassembly and reuse. Mandatory use of safety goggles when using the sledge hammers...

Degarmo's Materials And Processes In Manufacturing

13th Edition

ISBN: 9781119492825

Author: Black, J. Temple, Kohser, Ronald A., Author.

Publisher: Wiley,

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Degarmo's Materials And Processes In Manufacturing

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Solution Summary: The author explains that the hammerhead chipped formed because of the formation of untempered martensite, which would have a hardness of about Rockwell C 65 and would crack upon impact. Ductile cast iron has

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