Process and apparatus for multiple lap cutting of solid materials
AssigneeHeliotronic Forschungs- und Entwicklungsgesellschaft fur Solarzellen-Grundstoffe mbH
InventorsDieter Regler, Alfred Moritz, Klemens Muhlbauer
Life of this patent
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Abstract
A process and an apparatus for carrying out a process for multiple lap cutting of solid materials, especially those having rectangular or square cross sections, in which the workpiece is subjected, during the cutting operation, to a rotating motion thereby improving the quality of the discs and increasing the cutting efficiency.
Claims8
A process for multiple lap cutting of a solid workpiece having a substantially flat surface, comprising the steps of:
- reciprocatingly moving a set of blades;
- providing relative movement of said set of blades and said workpiece toward each other such that said set of blades, under pressure, initially cuts said substantially flat surface and then cuts downwardly through a cutting zone in a cutting plane in said workpiece;
- supplying said cutting zone with a suspension of a lapping abrasive from above the blades;
- and
- subjecting the workpiece to an oscillating motion about an axis of rotation located beneath the workpiece and perpendicular to the cutting plane such that said oscillating motion is in the range of 0.1.degree.-3.degree. in each direction from a resting position.
Apparatus for multiple lap cutting of a solid workpiece having a substantially flat surface, comprising:
- workpiece carrier for supporting said workpiece and;
- a reciprocating movable set of blades positioned above said workpiece for initially cutting said substantially flat surface and then cutting downwardly through a cutting zone in a cutting plane in said workpiece;
- lapping abrasive supply means positioned above said set of blades for supplying said cutting zone with a suspension of a lapping abrasive;
- and
- means for oscillating said workpiece carrier about an axis of rotation thereof located below said workpiece and perpendicular to the cutting plane such that said oscillating motion is in the range of 0.1.degree.-3.degree. in each direction from a resting position.
Dependencies are inferred from the claim text.