Cutter for cutting thin plastics. Encyclopedia of radio electronics and electrical engineering
Encyclopedia of radio electronics and electrical engineering / Ham Radio Technologies
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A manual cutter for cutting thin plastics, made using a slotted cutter, is described. The cutter does not blunt and does not require sharpening.
Cutting plastic layered decorative and electrical insulating materials, including foil fiberglass, in everyday life, and in laboratory conditions, is carried out, as you know, with a cutter made of a hacksaw blade and specially sharpened on a grinding machine. The blade of such a cutter quickly (after the first cuts) “sits down”, especially on fiberglass, and requires regrinding, which is not always possible due to the lack of the necessary tool.
The figure shows a cutter that does not require sharpening and does not blunt.
The cutter is assembled on the basis of a slotted cutter (slotted), designed for cutting slots, narrow slots, deep grooves in steel and cast iron parts. For the cutter, a milling cutter with a tooth height of 2 mm (GOST 2679-73) was selected, which is best suited for this manual work. Its outer diameter is 32 mm, the bore diameter is 8 mm, and the width (thickness) is 0,5 mm. The number of teeth is 36. Of course, you can use a cutter with a different diameter, for example 40 mm, but not more than 0,6 mm thick. The handle of the cutter is made of a wooden lath 15...20 mm thick. The length of the cutter handle is 160 mm.
The cutter is pressed against the handle with an M8 bolt with a nut and slightly protrudes beyond its dimensions, which makes the operation of the cutter reliable (does not break it) in case of accidental distortions in the process of cutting the material. If you rearrange the cutter, then the tool is also suitable for working with the left hand (for left-handers).
Author: V.A. Ermolov
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