Rotary extrusion producing mold for producing inner ring rib with large aspect ratio formed of hollow billet
US-10265747-B2 · Apr 23, 2019 · US
Special-purpose die for shaping aluminum-magnesium alloy by rotating extrusion
US10814370B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10814370-B2 |
| Application number | US-201815947972-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 9, 2018 |
| Priority date | Jun 27, 2017 |
| Publication date | Oct 27, 2020 |
| Grant date | Oct 27, 2020 |
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Abstract
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A special-purpose die for shaping an aluminum-magnesium alloy by rotating extrusion is provided, including a male die and a female die, wherein a trapezoidally-sectioned groove is formed at an end portion of a working area of the male die, an inner portion of the male die is hollow, with the hollow inner portion having sections of equal area, a circumferential wall of a die cavity of the female die is provided with at least two symmetrical axial grooves, and a cavity is formed inside a clamping part of the female die. The present disclosure remarkably reduces the axial extrusion force such that the deformation of the formed workpiece is more uniform, which greatly improves the mechanical property of the formed workpiece.
First claim
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The invention claimed is: 1. A special-purpose die for shaping an aluminum-magnesium alloy by rotating extrusion, comprising: a male die; and a female die, wherein the male die comprises a working area of the male die and an inner portion of the male die, and the female die comprises a die cavity of the female die and a clamping part of the female die, and wherein a groove having a trapezoidal section is formed at an end portion of the working area of the male die, the inner portion of the male die is hollow, with the hollow inner portion having sections of equal area, a circumferential wall of the die cavity of the female die is provided with at least two symmetrical axial grooves, and a cavity is formed inside the clamping part of the female die. 2. The special-purpose die for shaping an aluminum-magnesium alloy by rotating extrusion according to claim 1 , wherein an electric heater for the female die is placed in the cavity inside the clamping part of the female die. 3. The special-purpose die for shaping an aluminum-magnesium alloy by rotating extrusion according to claim 1 , wherein the female die comprises thermocouple wires, an insert, and a bottom of the die cavity of the female die has a part, where a blank is placed, with the insert placed in the part, and an inner hole is formed in a middle of the insert for allowing the thermocouple wires to be welded, and the thermocouple wires, together with the insert, are then placed at the bottom of the die cavity of the female die. 4. The special-purpose die for shaping an aluminum-magnesium ahoy by rotating extrusion according to claim 1 , wherein the circumferential wall of the die cavity of the female die is provided with six symmetrical axial grooves. 5. The special-purpose die for shaping an aluminum-magnesium alloy by rotating extrusion according to claim 1 , wherein an electric heater for the male die is placed in the hollow inner portion of the male die.
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- What does patent US10814370B2 cover?
- A special-purpose die for shaping an aluminum-magnesium alloy by rotating extrusion is provided, including a male die and a female die, wherein a trapezoidally-sectioned groove is formed at an end portion of a working area of the male die, an inner portion of the male die is hollow, with the hollow inner portion having sections of equal area, a circumferential wall of a die cavity of the female…
- Who is the assignee on this patent?
- Univ North China
- What technology area does this patent fall under?
- Primary CPC classification B21C29/04. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Oct 27 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 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).