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US 5,252,152 AGranted
Method of controlling warpage in workpiece by selective flame-hardening and vibrations
AssigneesDavid J. Seror, Joseph Seror, Joseph P. Seror
InventorDavid J. Seror
Life of this patent
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Abstract
A method for stress-relieving a flame-hardened component by vibrating the workpiece as it is being flame-hardened, and then vibrating the workpiece after it has been flame-hardened, measuring the workpiece to detect warpage, straightening the workpiece to remove the warpage, and then vibrating the workpiece to remove any stresses created by the straightening step.
Claims11
A method for flame-hardening a metal workpiece comprising the steps of
- measuring the workpiece to determine the existence of any warpage;
- straightening the workpiece to remove such warpage;
- applying a flame to certain surfaces of the workpiece so as to heat the metal adjacent such surfaces;
- immediately quenching the heated workpiece surface to increase the hardness of such surface;
- supporting the workpiece on cushion means;
- vibrating the workpiece;
- observing the vibrations of the workpiece and terminating the vibrations after a period of time;
- measuring the workpiece to determine the existence of warpage thereof;
- straightening the workpiece to remove the warpage;
- and then
- repeating the vibration step.
8 more elements
A method for flame-hardening a metal workpiece comprising the steps of
- measuring the workpiece to determine the existence of any warpage;
- applying a flame to certain surfaces of the workpiece so as to heat the metal adjacent such surfaces;
- immediately quenching the heated workpiece surface to increase the hardness of such surface;
- supporting the workpiece on cushion means;
- vibrating the workpiece;
- observing the vibrations of the workpiece and terminating the vibrations after a period of time;
- measuring the workpiece to determine the existence of warpage thereof;
- straightening the workpiece to remove the warpage;
- and then
- repeating the vibration step.
7 more elements
Dependencies are inferred from the claim text.