Materials & Effects
Applications & Methods
Dies & Molds
Rolls & Shafts
Detroit Hardness Tester
Get hardness when and where you need it
Gears, sprockets and gear racks benefit the most from quality flame hardening. Replacement of worn gears can be expensive, time consuming and difficult.
These gears demonstrate the three methods of flame hardening. The large gear was made of 1045 steel and completely finished before flame hardening. The spiral gear was made from 1035 steel instead of 4140 and flame hardened to Rc.50, without loss of lead due to dimensional change. The small timing gears were flame hardened by the spinning method with less distortion than previously encountered from other heat treating methods.
A New Development