Process for drilling deep holes in a work piece

Details Process for drilling deep holes in a work piece Process for drilling deep holes in a work piece

B - Operations, Transporting

23

B

77/10, 77/32

B23B 51/06 (2006.01)

Patent

CA 1298104

PAT 10756-1 CA 6578 ABSTRACT A drill for deep holes in a work piece, is supplied with coolant in the cutting area at the bottom of the drilled hole under a specific operating pressure. A twist drill with 8 hard-metal cutter section and internal cooling channels is used, the coolant operating pressure being controlled in accordance with the depth of the drilled hole, such that it remains above 50 bar. PAT 10756-1

535728

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