Sleeve for a sawing bead obtained by metal injection moulding
US-2015298353-A1 · Oct 22, 2015 · US
Sintered component
US11219950B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11219950-B2 |
| Application number | US-201916356572-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 18, 2019 |
| Priority date | Dec 12, 2014 |
| Publication date | Jan 11, 2022 |
| Grant date | Jan 11, 2022 |
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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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Abstract
Official abstract text for this publication.
Provided is a method for manufacturing a sintered component having a hole formed therein, in which a sintered component having no defect, such as cracks, can be manufactured with good productivity and also a reduction in tool life accompanied by forming the hole can be suppressed. The method for manufacturing a sintered component includes a molding step of press-molding a raw material powder containing a metal powder and thus fabricating a green body; a drilling step of forming a hole in the green body using a candle-type drill and thus forming a thin-walled portion, of which a thickness Gt as measured between an inner circumferential surface of the hole and an outer surface of the green body is smaller than a diameter Gd of the hole; and a sintering step of sintering the green body after the drilling step.
First claim
Opening claim text (preview).
The invention claimed is: 1. A sintered component having a first hole extending in an axial direction of the sintered component and a second hole formed in the sintered component and smaller than the first hole, the sintered component comprising: a thin-walled portion having a thickness St as measured between an inner circumferential surface of the second hole and an outer surface of the sintered component smaller than a diameter Sd of the second hole, wherein a ten point medial height Rz of the inner circumferential surface of the second hole is 20 μm or more. 2. The sintered component according to claim 1 , wherein the second hole penetrates from an inner circumferential surface of the first hole to the outer surface of the sintered component. 3. The sintered component according to claim 1 , wherein the sintered component has a cylindrical shape, wherein the first hole extends in an axial direction of the cylindrical shape, wherein the second hole penetrates from an inner circumferential surface of the first hole to an outer circumferential surface of the cylindrical shape, and wherein the thickness St of the thin-walled portion is measured between the inner circumferential surface of the second hole and a bottom surface of the cylindrical shape and is smaller than the diameter Sd of the second hole.
Assignees
Inventors
Classifications
containing inorganic lubricating or binding agents, e.g. metal salts · CPC title
- B22F3/162Primary
Machining, working after consolidation · CPC title
Tube or ring forms · CPC title
containing tungsten, tantalum, molybdenum, vanadium, or niobium · CPC title
Ferrous alloys, e.g. steel alloys (cast-iron alloys C22C37/00) · CPC title
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Frequently asked questions
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- What does patent US11219950B2 cover?
- Provided is a method for manufacturing a sintered component having a hole formed therein, in which a sintered component having no defect, such as cracks, can be manufactured with good productivity and also a reduction in tool life accompanied by forming the hole can be suppressed. The method for manufacturing a sintered component includes a molding step of press-molding a raw material powder co…
- Who is the assignee on this patent?
- Sumitomo Electric Sintered Alloy Ltd
- What technology area does this patent fall under?
- Primary CPC classification B22F3/162. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Jan 11 2022 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).