Cutting insert and milling cutter
US-2016375506-A1 · Dec 29, 2016 · US
Cutting tool and tool body
US10213851B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10213851-B2 |
| Application number | US-201515311355-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 3, 2015 |
| Priority date | Jun 24, 2014 |
| Publication date | Feb 26, 2019 |
| Grant date | Feb 26, 2019 |
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- Title
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- Abstract
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- Assignees and inventors
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- First independent claim
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Abstract
Official abstract text for this publication.
A cutting tool including: a tool body ( 2 ) provided with an insert support seat ( 5 ) including a major seat surface ( 5 a ) that supports a bearing surface of a cutting insert, a plurality of seat side surfaces ( 5 b, 5 c ) that supports side surfaces of the cutting insert at different positions, and a thinned portion ( 5 d ) continuous with the major seat surface and the seat side surfaces; and a cutting insert attached to the insert support seat, wherein a ridge at a position where the major seat surface and the thinned portion intersect, a ridge at a position where the seat side surface and the thinned portion intersect, and a ridge at a position where the thinned portions continuous with each other intersect are each formed of a convex arc curved surface.
First claim
Opening claim text (preview).
The invention claimed is: 1. A cutting tool comprising: a tool body provided with an insert support seat including a major seat surface that supports a bearing surface of a cutting insert, a plurality of seat side surfaces that support side surfaces of the cutting insert at different positions, and a thinned portion continuous with the major seat surface and the seat side surfaces; and a cutting insert attached to the insert support seat, wherein the thinned portion includes a first thinned portion, a second thinned portion, a third thinned portion and a fourth thinned portion, and the second thinned portion intersects with the first thinned portion, the third thinned portion and the fourth thinned portion, wherein a ridge at a position where the major seat surface and the first thinned portion intersect, a ridge at a position where the seat side surface and the second thinned portion intersect, and a ridge at a position where the second thinned portion and the first, third and fourth thinned portions intersect are each formed of a convex arc curved surface. 2. The cutting tool according to claim 1 , wherein the convex arc curved surface has a radius of 0.1 mm or greater and 1.0 mm or less in a longitudinal perpendicular section. 3. The cutting tool according to claim 1 , wherein the thinned portion disposed between the major seat surface and the seat side surface includes a recessed arc curved surface having a radius r of 0.2 mm to 0.5 mm in a longitudinal perpendicular section. 4. A tool body provided with an insert support seat including a major seat surface that supports a bearing surface of a cutting insert, a plurality of seat side surfaces that support side surfaces of the cutting insert at different positions, and a thinned portion continuous with the major seat surface and the seat side surfaces, wherein the thinned portion includes a first thinned portion, a second thinned portion, a third thinned portion and a fourth thinned portion, and the second thinned portion intersects with the first thinned portion, the third thinned portion and the fourth thinned portion, wherein a ridge at a position where the major seat surface and the first thinned portion intersect, a ridge at a position where the seat side surface and the second thinned portion intersect, and a ridge at a position where the second thinned portion and the first, third and fourth thinned portions intersect are each formed of a convex arc curved surface. 5. The tool body according to claim 4 , wherein the convex arc curved surface has a radius of 0.1 mm or greater and 1.0 mm or less in a longitudinal perpendicular section. 6. The tool body according to claim 4 , wherein a thinned portion disposed between the major seat surface and the seat side surface includes a recessed arc curved surface having a radius r of 0.2 mm to 0.5 mm in a longitudinal perpendicular section.
Assignees
Inventors
Classifications
discontinuous · CPC title
irregular · CPC title
- B23C5/06Primary
Face-milling cutters, i.e. having only or primarily a substantially flat cutting surface · CPC title
Seats for cutting inserts, supports for replacable cutting bits · CPC title
Details of the milling cutter body · CPC title
Patent family
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US10213851B2 cover?
- A cutting tool including: a tool body ( 2 ) provided with an insert support seat ( 5 ) including a major seat surface ( 5 a ) that supports a bearing surface of a cutting insert, a plurality of seat side surfaces ( 5 b, 5 c ) that supports side surfaces of the cutting insert at different positions, and a thinned portion ( 5 d ) continuous with the major seat surface and the seat side…
- Who is the assignee on this patent?
- Sumitomo Electric Hardmetal Corp
- What technology area does this patent fall under?
- Primary CPC classification B23C5/06. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Feb 26 2019 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 6 related publications on this page (citations in our corpus or others sharing the same primary CPC).