Composite drill for drilling circuit boards

Details Composite drill for drilling circuit boards Composite drill for drilling circuit boards

1977-08-29

1979-01-23

Weidenfeld, Gil

Cutting by use of rotating axially moving tool

Tool or tool with support

Including detailed shank

408704, 407 32, B23B 5102

Patent

active

041358473

ABSTRACT:
This invention provides a drill, drilling apparatus, and methods for their use, in which a plastic shank of uniform external diameter is molded onto one end of an insert made of hard drill material. The end of the insert which is encompassed by plastic has dimensions and configurations designed to prevent axial and rotational slippage of the insert inside the plastic shank when the drill is in use. The unattached end of the insert is provided with a cutting tip and drilling flutes. High speed automatic drilling and drill-changing operations are described in which a number of drills having different flute diameters, but uniform shank diameters, are used consecutively.

REFERENCES:
patent: 2985209 (1961-05-01), Novelo
patent: 3751176 (1973-08-01), VON Hollen
patent: 3790297 (1974-02-01), Maursey

Affiliated with

Also associated with

Rating

Composite drill for drilling circuit boards does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Composite drill for drilling circuit boards, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Composite drill for drilling circuit boards will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2270941