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US 4,783,983 AGranted
Method and apparatus for amorphous metal slitting
OwnerMandayam Narasimhaninventor
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OwnerMandayam Narasimhaninventor
Estimating the term…
A method and apparatus are provided for continuously slitting amorphous ribbon into a strip without adversely affecting the unique electrical, mechanical and magnetic properties of the material. The method includes the steps of heating a localized zone to approximately the glass transformation temperature and substantially simultaneously indenting the ribbon. The combined heating and indenting force produces a clean, high quality cut edge along the strip. Preferably, the positive engaging force causing indentation is effective to plow softened material to form a crystallized ridge adjacent the cut edge. The ridge is easily removed by a rotating brush. The indenter roller preferably includes a substantially V-shaped peripheral edge to concentrate the heat and force against the ribbon. A control unit is employed to provide the optimum heat, force and speed of relative movement between the indenter and the ribbon.
A method for continuously slitting solid amorphous metal alloy ribbon into strips of desired reduced width, comprising the steps of:
An apparatus for continuously slitting solid amorphous metal alloy ribbon into strips of desired reduced width comprising:
The slitting apparatus of claim 21 wherein said indenter means is shaped to plow said softened material by high temperature plastic deformation so as to form a ridge of displaced material adjacent the cut edges of said amorphous ribbon;
Dependencies are inferred from the claim text.