Drill with improved wear inserts

Details Drill with improved wear inserts Drill with improved wear inserts

1991-02-21

1991-08-13

Parker, Roscoe V.

Metal tools and implements, making

Blank or process

Drill

76DIG11, 76DIG12, 408145, 408230, B21K 504

Patent

active

050386417

ABSTRACT:
The inserts and pockets in an inserted drill are provided with differing curvatures on their arcuate back edges. Consequently, when the insert is aligned in the pocket, a crescent shaped, instead of annular, gap is created, with minimal or no thickness at the outboard ends. Very little braze seam is thus exposed to erosion at the cutting edge, but the braze seam is as strong or stronger than conventionally. It is also easier to maintain the desired thickness of the braze seam during manufacture.

REFERENCES:
patent: 1847302 (1932-03-01), Emmons
patent: 2832238 (1958-04-01), Brinker et al.
patent: 4679971 (1987-07-01), Maier

Affiliated with

Also associated with

Rating

Drill with improved wear inserts does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Drill with improved wear inserts, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Drill with improved wear inserts will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1519506