TOOL MAKING METHOD Russian patent published in 1998 - IPC

Abstract RU 2108194 C1

FIELD: plastic metal working, namely manufacture of shaped tools such as punches for forming screws and wood screws with cross-like slot. SUBSTANCE: method comprises steps of upsetting initial cone blank for making preliminary blank with working end portion in the form of truncated cone whose generatrix inclination angle relative to blank axis is more than that of initial blank. Then end working surface of tool body is shaped at simultaneously forming extension of tool in the form of slot impression. EFFECT: improved design. 2 cl, 4 dwg

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RU 2 108 194 C1

Authors

Artjukhin V.I.

Val'Chuk O.M.

Stankovskij O.M.

Popkov S.V.

Dates

1998-04-10Published

1996-06-26Filed