Apparatus and method for stabilizing a formable material while forming
US-2017182540-A1 · Jun 29, 2017 · US
Hot blow forming method for aluminum alloy sheet
US10807142B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10807142-B2 |
| Application number | US-201515528941-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 21, 2015 |
| Priority date | Nov 24, 2014 |
| Publication date | Oct 20, 2020 |
| Grant date | Oct 20, 2020 |
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Abstract
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A hot blow forming method for the aluminum alloy sheet carries out a hot blow forming to an aluminum alloy sheet using a first metal mold being a female mold for forming having a protruding surface portion on an inside surface thereof and a second metal mold for gas introduction. Immediately prior to the hot blow forming, a temperature (T1) of the aluminum alloy sheet and a temperature (T2) of the first metal mold satisfy a relation (T1)-(T2)≥30° C. and the temperature (T2) is equal to or higher than 400° C. In the hot blow forming, the aluminum alloy sheet is made to be brought into contact with at least a part of the protruding surface portion of the first metal mold within 30 seconds from a start of the gas introduction from the second metal mold.
First claim
Opening claim text (preview).
The invention claimed is: 1. A hot blow forming method for an aluminum alloy sheet comprising: carrying out hot blow forming for the aluminum alloy sheet using a first metal mold, which is a female mold for forming having a protruding surface portion on an inside surface thereof, and a second metal mold for gas introduction, wherein, immediately prior to the hot blow forming, a temperature (T1) of the aluminum alloy sheet and a temperature (T2) of the first metal mold satisfy a relation (T1)-(T2)≥30° C., and the temperature (T2) is equal to or more than 400° C., and wherein, in the hot blow forming, the aluminum alloy sheet is brought into contact with at least a part of the protruding surface portion of the first metal mold within 30 seconds from a start of gas introduction from the second metal mold. 2. The hot blow forming method for an aluminum alloy sheet according to claim 1 , wherein a temperature (T3) of the second metal mold immediately prior to the hot blow forming is lower than a melting point of the aluminum alloy sheet and is equal to or higher than the temperature (T1). 3. The hot blow forming method for an aluminum alloy sheet according to claim 1 , wherein the aluminum alloy sheet is comprised of, by mass %, 1.1 to 6.5% Mg, 0.01 to 0.3% Fe, and a balance Al and inevitable impurities, and wherein the temperature (T1) is equal to or lower than 550° C. 4. The hot blow forming method for an aluminum alloy sheet according to claim 1 , wherein the aluminum alloy sheet is comprised of, by mass %, 0.2 to 2.0% Si, 0.2 to 1.5% Mg, 0.01 to 0.3% Fe, and a balance Al and inevitable impurities, and wherein the temperature (T1) is equal to or lower than 550° C.
Assignees
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Classifications
- C22C21/02Primary
with silicon as the next major constituent · CPC title
- B21D26/021Primary
Deforming sheet bodies · CPC title
Process control or regulation for heat treatments · CPC title
with silicon · CPC title
by applying fluid pressure · CPC title
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- What does patent US10807142B2 cover?
- A hot blow forming method for the aluminum alloy sheet carries out a hot blow forming to an aluminum alloy sheet using a first metal mold being a female mold for forming having a protruding surface portion on an inside surface thereof and a second metal mold for gas introduction. Immediately prior to the hot blow forming, a temperature (T1) of the aluminum alloy sheet and a temperature (T2) of …
- Who is the assignee on this patent?
- Uacj Corp
- What technology area does this patent fall under?
- Primary CPC classification C22C21/02. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Oct 20 2020 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).