FIELD: process engineering.
SUBSTANCE: invention relates to metal forming and may be used in nut heading at cold heading automatic machines. Heading tool comprises body that embraces cylindrical insert. Said insert has multifaceted bore and lead section. Multifaceted insert is fitted into said insert. Basils of cylindrical insert multifaceted bore feature skew angle varying from of 0'30 to 2° starting from multifaceted insert.
EFFECT: higher wear resistance.
2 dwg
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RU2271893C2 |
