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US4616963A
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Cutting tip for cutting-tools
Assignee: Cerasiv GmbH Innovatives Keramik Engineering
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Filing: 1982-07-09
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Granted: 1986-10-14
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Expires: 2002-07-09
Abstract
Abstract PCT No. PCT/DE82/00145 Sec. 371 Date Feb. 24, 1983 Sec. 102(e) Date Feb. 24, 1983 PCT Filed Jul. 9, 1982 PCT Pub. No. WO83/00109 PCT Pub. Date Jan. 20, 1983.Ceramic cutting tips for cutting-tools are provided with an encircling bevel and a shaping stage for the chip. The bevel (3) runs at an angle ( alpha ) of from 15 to 35 degrees and adjacent thereto there is a channel (5) which has a cross-section in the form of a segment of a circle, the chord (6) of which also runs at an angle of from 15 to 35 degrees with respect to the top surface (4). The length of the chord (6) is between 0.5 and 1.5 mm and the radius (R) of the channel (5) is between 0.6 and 2.5 mm. The hollow channels (5) run out in the corner region of the cutting tip (2) and form a nose (8).
Inventors
- 👤 Guy Habert
- 👤 Harald Kraft
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:32
CPC Classifications
B; B23; B23B; B23B27/00; B23B27/22; Y; Y10; Y10T; Y10T407/00; Y10T407/23; Y10T407/235; Y10T407/24; Y10T407/245
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
190 words
In a cutting tip for cutting tools having top and bearing surfaces, and side surfaces extending between said top and bearing surfaces, and having an encircling cutting edge defined by a bevel and a shaping stage for the chip, the improvement which comprises the bevel (3) running at an angle (α) of from 15 to ±degrees with respect to the top (4) or bearing surface and having a width of from 0.05 to 0.4 mm, wherein said bevel (3) intersects said said surface and is sloped so that said bevel (3) is inclined upwardly from the point of intersection with said side surface toward said top surface (4) and having next adjacent to this bevel, a channel (5) which intersects said bevel (3) and has a cross-section in the form of a segment of a circle, the longest chord (6) of which runs at an angle (β) of from 15 to 35 degrees with respect to the top (4) or bearing surface, wherein said chord (6) is sloped so that said chord (6) is inclined upwardly from the point of intersection with said bevel (3) toward said top surface (4).
Claim 2
Dependent Claim
190 words
In a cutting tip for cutting tools having top and bearing surfaces, and side surfaces extending between said top and bearing surfaces, and having an encircling cutting edge defined by a bevel and a shaping stage for the chip, the improvement which comprises the bevel (3) running at an angle (α) of from 15 to ±degrees with respect to the top (4) or bearing surface and having a width of from 0.05 to 0.4 mm, wherein said bevel (3) intersects said said surface and is sloped so that said bevel (3) is inclined upwardly from the point of intersection with said side surface toward said top surface (4) and having next adjacent to this bevel, a channel (5) which intersects said bevel (3) and has a cross-section in the form of a segment of a circle, the longest chord (6) of which runs at an angle (β) of from 15 to 35 degrees with respect to the top (4) or bearing surface, wherein said chord (6) is sloped so that said chord (6) is inclined upwardly from the point of intersection with said bevel (3) toward said top surface (4).
Claim 3
Dependent Claim
19 words
The cutting tip of claim 1 wherein the length of the chord (6) is from 0.5 to 1.5 mm.
Claim 4
Dependent Claim
20 words
The cutting tip of claim 1 wherein the radius (R) of the channel (5) is from 0.6 to 2.5 mm.
Claim 5
Dependent Claim
20 words
The cutting tip of claim 2 wherein the radius (R) of the channel (5) is from 0.6 to 2.5 mm.
Claim 6
Dependent Claim
21 words
The cutting tip of claim 1 wherein the channel (5) runs out in the corner region to leave a nose (8).
Claim 7
Dependent Claim
21 words
The cutting tip of claim 2 wherein the channel (5) runs out in the corner region to leave a nose (8).
Claim 8
Dependent Claim
12 words
The cutting tip of claim 1 wherein the cutting tip is ceramic.
Claim 9
Dependent Claim
12 words
The cutting tip of claim 2 wherein the cutting tip is ceramic.
Claim 10
Dependent Claim
12 words
The cutting tip of claim 3 wherein the cutting tip is ceramic.
Claim 11
Dependent Claim
12 words
The cutting tip of claim 4 wherein the cutting tip is ceramic.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-10-13 | 1990-04-14 | 1990-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-10-13 | 1994-04-14 | 1994-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-10-13 | 1998-04-14 | 1998-10-14 | $7700.00 | Window Closed / Lapsed |