FIELD: process engineering.
SUBSTANCE: invention relates to metal working. Cutting head comprises body with cutting pate and roller on axle are fitted in body groove. Cutting plate edge is aligned with body end edge. Said roller is arranged in diametrical opposition to cutting plate with the shift from cutting plate first tooth vertex by half the thread pitch in opposite side from body end. Note here that said roller at extreme extending vertex features angle corresponding to that of cutting plate tooth. spacing between vertices of cutting plate teeth and extreme roller vertex corresponds to the size of thread being cut.
EFFECT: expanded performances and improved quality.
2 cl, 3 dwg
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|---|---|---|---|
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|
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