A Study on the Strain-Free Cutting of Metal Single Crystals

概要

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An etching-cutter for cutting metal crystals strain・freely has been designed. Vinyl-chloride and Saran have been found most suitable as the string of the cutter. The cutting of tin, zinc, iron, and copper crystals can be done in a comparatively short time, showing a smooth cut surface, while the cutting of nickel, aluminium, and bismuth crystals requires a long time and produces a rugged, stepped, or roughened cut surface. Cylindrical crystals can be cut along a crystal plane which inclined more than 45° to the rod axis. A slice of 1mm or more in thickness can also be cut off from a large crystal with a precision of ±0.2mm. The volume of crystal lost by cutting is very small, its width being about two times as large as the diameter of string used. It has been confirmed by X-ray examination that the cut surface is practically free from strain. Finally, it is shown that the etching-cutter technique is very excellent as compared with the paraffin technique.
東北大学の論文