History of Technology in India, Vol. I: From Antiquity to c. 1200 A.D. v1.c14.s3.12
History of Technology in India, Vol. I: From Antiquity to c. 1200 A.D. v1.c14.s3.12
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v1.c14.s3.12
Increased hardness could be achieved in case of a metal die, prepared following the first or second process, by heating it to a temperature somewhat below the melting point and cooling it by water quenching.