The present boring head is constructed for drilling or boring deep holes or bores of substantial axial length whereby so-called veering off from the longitudinal boring axis is to be prevented. For this purpose three cutting members are distributed about the circumference of a base in such a manner that the cutting members are located at 0 DEG , 95 DEG , and 190 DEG with a position tolerance of +/-5 DEG for each cutting member relative to a polar coordinate system. At least one guide rod is arranged at an angle of 55 DEG and another guide rod is located at an angle of 305 DEG . Each guide rod position may have a tolerance of +/-10 DEG in said polar coordinate system.
申请公布号
DE2828792(C2)
申请公布日期
1982.11.11
申请号
DE19782828792
申请日期
1978.06.30
申请人
WILHELM HEGENSCHEIDT, GMBH, 5140 ERKELENZ, DE
发明人
LOWIS, CLEMENS, DIPL.-ING., 5141 KATZEM, DE;BERSTEIN, GARRJ, 5140 ERKELENZ, DE
