B21D11/10

Device and method for opening folded heat exchanger cores

A device is configured for opening a heat exchanger core from a U-shape to a V-shape. Such heat exchanger core has a plurality of parallel flat tubes, each having two ends; and two manifolds. Each of the flat tubes has two straight sections adjacent to the manifolds and an intermediate bent section. The device has two hinged frames, a respective clamp arrangement on each of the hinged frames for holding the two manifolds, and a trough shaped support for the intermediate portion. For opening the U-shaped heat exchanger core, the heat exchanger core is inserted into the device, and the two manifolds are secured with the clamp arrangements. The clamp arrangements are separated from one another by pivoting apart the two hinged frames, on which the clamps are mounted. Simultaneously, the intermediate bent section is pushed toward the trough adapted to provide a desired curvature to the intermediate section.

Non-planar semiconductor packaging systems and related methods

Implementations of a packaging system may include a wafer; and a curvature adjustment structure coupled thereto where the curvature adjustment structure may be configured to alter a curvature of a largest planar surface of the wafer.

Non-planar semiconductor packaging systems and related methods

Implementations of a packaging system may include a wafer; and a curvature adjustment structure coupled thereto where the curvature adjustment structure may be configured to alter a curvature of a largest planar surface of the wafer.

Devices and methods for forming bow springs of one-piece centralizers

A device for forming bow springs in a one-piece centralizer includes a swing arm that is configured to receive the one-piece centralizer. The device and process using the device include mechanically applying, with a press, an external load onto an un-formed bow spring positioned on a form of the swing arm. When the load is applied with the device, the un-formed centralizer is forced downward to allow the bow spring to take the desired form/shape/geometry, length, and height of a formed bow spring.

Devices and methods for forming bow springs of one-piece centralizers

A device for forming bow springs in a one-piece centralizer includes a swing arm that is configured to receive the one-piece centralizer. The device and process using the device include mechanically applying, with a press, an external load onto an un-formed bow spring positioned on a form of the swing arm. When the load is applied with the device, the un-formed centralizer is forced downward to allow the bow spring to take the desired form/shape/geometry, length, and height of a formed bow spring.

ROLL BENDING MACHINE

A roll bending machine includes a roller unit and a tension device. The roller unit rolls and bends a strip member at a rolling rate varying in a width-wise direction of the strip member. The tension device applies tension to the strip member after being rolled by the roller unit in a rolling direction of the strip member, thereby reducing compressive stress which usually result in formation of wrinkles on the strip member. This minimizes the probability of formation of wrinkles on the strip member.

FOIL TAB FORMING APPARATUS AND FOIL TAB FORMING METHOD

A foil tab forming apparatus forms at least one foil tab of a positive electrode foil tab and a negative electrode foil tab respectively provided at a top portion and a bottom portion of an electrode assembly. The foil tab forming apparatus includes a pre-forming jig configured to bend the foil tab by pressing the foil tab, while moving in a direction from an outer circumferential portion of the electrode assembly to a winding center portion of the electrode assembly and a forming jig configured to press the foil tab that has been primarily bent by the pre-forming jig, by moving along a direction parallel to a winding axis of the electrode assembly.

FOIL TAB FORMING APPARATUS AND FOIL TAB FORMING METHOD

A foil tab forming apparatus forms at least one foil tab of a positive electrode foil tab and a negative electrode foil tab respectively provided at a top portion and a bottom portion of an electrode assembly. The foil tab forming apparatus includes a pre-forming jig configured to bend the foil tab by pressing the foil tab, while moving in a direction from an outer circumferential portion of the electrode assembly to a winding center portion of the electrode assembly and a forming jig configured to press the foil tab that has been primarily bent by the pre-forming jig, by moving along a direction parallel to a winding axis of the electrode assembly.

LOCKING ARM OF A CARRIER CONNECTING ROD AND METHOD FOR MAKING THE SAME
20240124081 · 2024-04-18 ·

A method for manufacturing a locking arm of a carrier connecting rod includes four steps to press a metal sheet via a first stamping die and a second stamping die to form the metal sheet to include a front section, a bent middle section and a rear section. A stopper is formed to the front section, and a recessed area is formed to one side of the bent middle section. A positioning hole is defined through a center of the recessed area. A guide surface is formed to the bent middle section opposite to the recessed area. The locking arm is pivotably connected to the extendable tube of the carrier connecting rod, and the protrusion of the spring member in the extendable tube is guided by the guide surface to be retractably engaged with the positioning hole. The locking arm is manufactured at low cost and has better structural strength.

Header beam of a vehicle frame and method of forming the same

A header beam couples between A-pillars of a vehicle frame. The header beam is formed from a generally straight beam segment that is extruded to have a hollow body portion with supportive legs extending within the hollow interior along the length of the beam segment, defining uninterrupted forward and rearward box sections for supporting continuous load paths on the header beam. The end portions of the beam segment are clamped and the beam segment is stretch bent to form a curvature between the end portions that remain generally straight. A front flange extends forward along the body portion and is struck proximate the end portions to form an edge that is parallel to the curvature formed between the end portions. The end portions are attached to the A-pillars and the edge of the front flange is attached to a windshield.