in the home workshop By Albert A Brandt OW many times have you wished that you could put a tough edge on an its surface hardness in a matter of seconds No special equipment of any kind other th ID: 100435
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HARDENING STEEL in the home workshop By Albert A. Brandt OW many times have you wished that you could put a tough edge on an its surface hardness in a matter of seconds. No special equipment of any kind other than a gas ring or Bunsen burner is re- quired. To harden iron and low-carbon steel Right: Boring tough automobile spring leaf with ordinary carbon drill after it has been case-hardened 2. Object is then dipped into powder and stirred to insure even coating. 3. After reheat ing the object is quickly quenched in brine or clean