Hubbed blade
US-2020324390-A1 · Oct 15, 2020 · US
Cutting apparatus
US12208482B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12208482-B2 |
| Application number | US-202217653375-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 3, 2022 |
| Priority date | Mar 23, 2021 |
| Publication date | Jan 28, 2025 |
| Grant date | Jan 28, 2025 |
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- Title
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- Abstract
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- Assignees and inventors
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- Key dates
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- First independent claim
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- CPC / IPC classifications
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- Citations and related patents
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Abstract
Official abstract text for this publication.
A cutting apparatus includes a chuck table configured to hold the workpiece, and a cutting unit fitted with a cutting blade including an annular base and a cutting edge that includes abrasive grains and a binder configured to fix the abrasive grains, and is formed along an outer circumferential edge of the base. The cutting unit includes a spindle, a blade mount fitted to a distal end portion of the spindle, and a fixing nut configured to fix the cutting blade to the blade mount, and the blade mount or the fixing nut is provided with a corrosion layer formed of a material having a higher ionization tendency than a material constituting the binder.
First claim
Opening claim text (preview).
What is claimed is: 1. A cutting apparatus for cutting a workpiece, the cutting apparatus comprising: a chuck table configured to hold the workpiece; and a cutting unit fitted with a cutting blade including an annular base and a cutting edge that includes abrasive grains and a binder configured to fix the abrasive grains, and is formed along an outer circumferential edge of the base, the cutting unit including a spindle, a blade mount fitted to a distal end portion of the spindle, and a fixing nut configured to fix the cutting blade to the blade mount, and the blade mount or the fixing nut being provided with a corrosion layer formed of a material having a higher ionization tendency than a material constituting the binder, wherein the binder and the corrosion layer are formed by a nickel plating layer containing sulfur, and a content rate of sulfur in the corrosion layer is higher than a content rate of sulfur in the binder. 2. The cutting apparatus according to claim 1 , wherein the content rate of sulfur in the corrosion layer is equal to or more than 1.2 times the content rate of sulfur in the binder.
Assignees
Inventors
Classifications
Cutting or separating of wafers, substrates or parts of devices · CPC title
- B24B41/06Primary
Work supports, e.g. adjustable steadies (B24B37/27 takes precedence) · CPC title
by cutting with discs or wheels · CPC title
using a tool turning around the workpiece · CPC title
- B24B27/06Primary
Grinders for cutting-off · CPC title
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Frequently asked questions
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- What does patent US12208482B2 cover?
- A cutting apparatus includes a chuck table configured to hold the workpiece, and a cutting unit fitted with a cutting blade including an annular base and a cutting edge that includes abrasive grains and a binder configured to fix the abrasive grains, and is formed along an outer circumferential edge of the base. The cutting unit includes a spindle, a blade mount fitted to a distal end portion o…
- Who is the assignee on this patent?
- Disco Corp
- What technology area does this patent fall under?
- Primary CPC classification B24B41/06. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Jan 28 2025 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 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).