Method and apparatus for the manufacture of a workpiece having a

Details Method and apparatus for the manufacture of a workpiece having a Method and apparatus for the manufacture of a workpiece having a

1997-12-18

1999-10-26

Bareford, Katherine A.

Coating processes

Frictional application

427180, 427201, 427359, 427360, 118 76, 118110, 118308, B05D 312, B05C 1100

Patent

active

059724188

ABSTRACT:
In a method and an apparatus for the manufacture of a workpiece with a rotation-symmetrically hardened surface area, the workpiece surface area to be hardened is initially applied with a carrier film of pulverized alloying elements. A roll is radially infed to the carrier film, accompanied by the rotation of the workpiece. Under the influence of heat, the pulverized alloying elements of the carrier film are rolled into the surface area of the workpiece so that the alloying elements are intercalated into the workpiece surface and increase its hardness. For performing this method, the workpiece is clamped on a spindle driven in a rotary manner. A receiving hopper and an application device are radially spaced from the spindle and are interconnected by a supply device.

REFERENCES:
patent: 2354113 (1944-07-01), Gould
patent: 3397732 (1968-08-01), Howell, Jr.

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