公开(公告)号：US20250011136A1

公开(公告)日：2025-01-09

申请号：US18496003

申请日：2023-10-27

Applicant: Hyundai Motor Company ,  Kia Corporation

Inventor： Ae Sol Song

IPC: B66C1/22 ,  B21C25/02

Abstract: An embodiment die lifting lug structure includes a pair of lugs protruding from a die and spaced apart from each other and a lifting pin detachably mounted on the pair of lugs, wherein the lifting pin includes a body having a first end surface and a second end surface, a fixed ring fixed to the body, and a stopper ring configured to be movable between the body and the fixed ring in a radial direction of the body, wherein each lug of the pair of lugs includes a through hole configured to allow the body, the fixed ring, and the stopper ring of the lifting pin to pass therethrough.

公开(公告)号：US11701704B1

公开(公告)日：2023-07-18

申请号：US17568800

申请日：2022-01-05

Applicant: XUZHOU UNIVERSITY OF TECHNOLOGY

Inventor： Xiaoxi Wang ,  Xiang Zhang ,  Junchi Yuan ,  Zhiwei Yin ,  Tingyu Liang

IPC: B21H3/02 ,  B21D37/10 ,  B21C25/02 ,  B21C23/00

CPC classification number: B21H3/02 ,  B21C25/02 ,  B21D37/10 ,  B21C23/001

Abstract: A processing die and a preparation method for a fastener are provided. The processing die includes a punch and a die. The top of the punch and the bottom of the die are configured for being connected with a hydraulic press, the die includes a first half die and a second half die which are clamped to form an inlet channel, an expansion corner channel and a torsion channel, and an extrusion channel is included in the forming sliding block, the inlet channel, the expansion corner channel, the torsion channel and the extrusion channel are sequentially assembled to form a die channel cavity, and a billet to be processed is successively subjected to upsetting, shearing, torsion and extrusion in a single die under the pressure of the punch.

公开(公告)号：US11517952B2

公开(公告)日：2022-12-06

申请号：US16916548

申请日：2020-06-30

Applicant: Battelle Memorial Institute

Inventor： Vineet V. Joshi ,  Glenn J. Grant ,  Curt A. Lavender ,  Scott A. Whalen ,  Saumyadeep Jana ,  David Catalini ,  Jens T. Darsell

IPC: B21C23/00 ,  B21C23/04 ,  B21C29/00 ,  B21C27/02 ,  B21C23/21 ,  B21C23/22 ,  B21C25/02

Abstract: A shear assisted extrusion process for producing cladded materials wherein a cladding material and a material to be cladded are placed in sequence with the cladded material positioned to contact a rotating scroll face first and the material to be cladded second. The two materials are fed through a shear assisted extrusion device at a preselected feed rate and impacted by a rotating scroll face to generate a cladded extrusion product. This process allows for increased through wall strength and decreases the brittleness in formed structures as compared to the prior art.

公开(公告)号：US11478832B2

公开(公告)日：2022-10-25

申请号：US17077889

申请日：2020-10-22

Applicant: North University of China

Inventor： Xi Zhao ,  Shuailing Kan ,  Zhimin Zhang ,  Pengcheng Gao ,  Shuchang Li

IPC: B21C23/18 ,  B21C25/02

Abstract: The present disclosure provides an extrusion forming die for a cabin component. The extrusion forming die for a cabin component comprises an upper die assembly, a lower die assembly and a combined concave die. The upper die assembly comprises an extrusion punch (3), and the combined concave die comprises an M-shaped outer concave die (4) having a hollow cavity matched with the extrusion punch (3), and a W-shaped inner concave die (5) having a rotary cavity. The W-shaped inner concave die (5) is arranged in the rotary cavity of the M-shaped outer concave die (4) in a matched manner, and the rotary cavity and the hollow cavity are matched to form a rotary extrusion die cavity (18) with a W-shaped longitudinal section.

公开(公告)号：US11235366B2

公开(公告)日：2022-02-01

申请号：US16984333

申请日：2020-08-04

Applicant: Prince Mohammad Bin Fahd University

Inventor： Faramarz Djavanroodi

IPC: B21C23/00 ,  B21C37/04 ,  B21C25/02 ,  C22F1/08

Abstract: A process to fabricate ultra-fine grain metal wire, comprising: inserting a plurality of metal strands into a flexible elastic polyurethane sheath having an accommodating slot for each of the strands of metal to form a sheathed strand assembly; equal channel angular pressing (ECAP pressing) the sheathed strand assembly through an ECAP die having a plurality of die channels corresponding to the plurality of metal strands. The process is designed to improve electric conductance and mechanical properties of elongated metal parts and is especially applicable to optimize the conductance and tensile strength of copper cables, wires, strings, and rods.

公开(公告)号：US20210170463A1

公开(公告)日：2021-06-10

申请号：US17114590

申请日：2020-12-08

Applicant: METAL INDUSTRIES RESEARCH AND DEVELOPMENT CENTRE

Inventor： Shun-Yu SHAO

IPC: B21C23/00 ,  B21C25/02 ,  B21C23/32 ,  B21C25/06 ,  B21C29/00

Abstract: An extrusion forming apparatus includes a mold disposed in a front open end of an extruding channel of a housing, a holding seat disposed in front of the front open end and partially extending into the extruding channel to abut the mold, and a vibrating source connected to the housing in abutment with the holding seat and controllable to apply an ultrasonic energy to the mold through the holding seat. An extrusion forming method is carried out by the extrusion forming apparatus. An extruded product is made by the extrusion forming method using the extrusion forming apparatus.

公开(公告)号：US10814370B2

公开(公告)日：2020-10-27

申请号：US15947972

申请日：2018-04-09

Applicant: North University of China

Inventor： Zhimin Zhang ,  Jianmin Yu ,  Qiang Wang ,  Mo Meng ,  Jian Xu ,  Bing Bai

IPC: B21C25/02 ,  B21C29/04 ,  B21C23/00 ,  B21C29/00 ,  B21C23/08 ,  B21C25/04 ,  B21C23/20

Abstract: 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.

公开(公告)号：US10562087B2

公开(公告)日：2020-02-18

申请号：US16393502

申请日：2019-04-24

Applicant: Kobe Steel, Ltd.

Inventor： Shinya Morita ,  Tsunetake Tsuyoshi

IPC: E04C3/00 ,  B21C23/08 ,  B21C25/02 ,  C22C21/10 ,  B60J5/04 ,  C22F1/053

Abstract: A door beam including an aluminum alloy extrusion extended in a longitudinal direction and having a pair of webs and a pair of flanges to be positioned on an inside and an outside in a vehicle width direction. The pair of webs connect the pair of flanges at joint portions of each of the pair of webs such that the pair of webs and the pair of flanges form a closed cross section in a direction perpendicular to the longitudinal direction, and each of the pair of webs has a welded portion in a vicinity of a neutral axis passing through a centroid of the closed cross section and parallel to the pair of flanges.

公开(公告)号：US20200009631A1

公开(公告)日：2020-01-09

申请号：US16495394

申请日：2018-02-06

Applicant: POSTECH ACADEMY-INDUSTRY FOUNDATION

Inventor： Hyoung-seop KIM ,  Ji-hyun MOON ,  Ho-yong UM ,  Jae-ik YOON ,  Seung-mi BAEK

IPC: B21D11/14 ,  B21D11/22 ,  B21C25/02 ,  B21D43/00

Abstract: The present invention relates to a torsional severe plastic deformation method for a metal bar to which surface polishing is applied to the metal bar to improve the mechanical properties of the metal bar. According to an embodiment of the present invention, there is provided a torsional severe plastic deformation method for a metal bar, which includes: applying torsion to a metal bar; and removing a surface defect on the surface of the metal bar, the surface defect being caused by the applying of torsion, wherein the removing of the surface defect is carried out in a continuous manner in which the removing of the surface defect is performed together with the applying of torsion or in a discontinuous manner in which the applying of torsion is temporarily stopped and then the applying of torsion is performed, and the removing of a surface defect increases the amount of torsional rotation or the shear strain applied to the metal bar.

公开(公告)号：US10478878B2

公开(公告)日：2019-11-19

申请号：US15370482

申请日：2016-12-06

Applicant: Manchester Copper Products, LLC

Inventor： Charles L. Stewart

IPC: B21C23/08 ,  B21C29/00 ,  B21C33/00 ,  C21D1/62 ,  B21C31/00 ,  B21C23/21 ,  B29C31/00 ,  B21C23/00 ,  B21C29/02 ,  B21C25/02 ,  B21C25/04 ,  B21C29/04 ,  B21C35/02

Abstract: One or more hollow billets are loaded onto an elongate mandrel bar for extrusion. The billets are transported along the mandrel bar to a rotating die. The billets are transported through fluid clamps, which engage the mandrel bar and provide cooling fluid to the mandrel bar tip, and through mandrel grips, which engage the mandrel bar and prevent the mandrel bar from rotating. One or more press-rams advance the billets through a centering insert and into the rotating die. A quench assembly is provided at an extrusion end of the extrusion press to quench the extruded material. A programmable logic controller may be provided to control, at least in part, operations of the extrusion press system.