B21D37/08

MOLD, APPARATUS, AND METHOD FOR PRODUCING METAL-RESIN COMPOSITE

A mold is for press molding a metal plate and a resin material to produce a metal-resin composite. The mold includes an upper mold and a lower mold that sandwich the metal plate and the resin material. A cavity for arranging the resin material is provided by the upper mold and the lower mold. The upper mold has a recess into which the resin material leaking from the cavity is caused to flow.

Device for manufacturing laminated iron core and method for manufacturing laminated iron core
11524327 · 2022-12-13 · ·

A device for manufacturing a laminated iron core includes: a punch unit configured to form protrusions, and including N number of punches as a set, the N being a natural number larger than M; and N number of auxiliary punches. The N number of auxiliary punches are configured such that L number of auxiliary punches selected from the N number of auxiliary punches performs a nullification processing on a metal sheet, the nullification processing being configured to nullify a processing with the L number of punches among the N number of punches, the L being the natural number that is obtained by subtracting the M from the N. According to the above configurations, for example, since a processing position with the plurality of punches is limited in one position, a positional accuracy of protrusions formed in punched members with the plurality of punches is improved.

Tapered transition pilot
11517955 · 2022-12-06 · ·

A pilot assembly having a shaped portion and a shaped fastener relief for attachment to a die. The pilot assembly includes a fastener with a shaped washer that engages the shaped fastener relief to permit installation and removal of the pilot from the die. The shaped portion of the pilot assembly helps to locate and center the stock down the pilot assembly toward the die.

Tapered transition pilot
11517955 · 2022-12-06 · ·

A pilot assembly having a shaped portion and a shaped fastener relief for attachment to a die. The pilot assembly includes a fastener with a shaped washer that engages the shaped fastener relief to permit installation and removal of the pilot from the die. The shaped portion of the pilot assembly helps to locate and center the stock down the pilot assembly toward the die.

Progressive pressing device and manufacturing apparatus for fuel cell separators

In a progressive pressing device, a first state of a lifting part is a state not sandwiching an elongated metal plate between a lifting plate and an upper plate in a state in which a positioning pin and a positioning hole are not engaged, a second state is a state not sandwiching an elongated metal plate between a lifting plate and an upper plate in a state in which a positioning pin and a positioning hole are engaged, and a third state is a state sandwiching an elongated metal plate between a lifting plate and an upper plate in a state in which a positioning pin and a positioning hole are engaged.

METHOD FOR MANUFACTURING PRESS-FORMED ARTICLE, PRESS-FORMED ARTICLE, AND PRESS-FORMING APPARATUS

A method for manufacturing a press-formed article (100) includes a first step for forming a base sheet portion, a first rising portion, and a first strip portion from a sheet-shaped workpiece having a first edge portion and a second edge portion; and a second step for forming a second rising portion by causing a strip-shaped first zone including the second edge portion to be disposed between a first upper die and a first lower die from both sides, causing a second zone adjacent to the first zone to be disposed between a second upper die and a second lower die from both sides, and moving the first upper die and the first lower die relative to the second upper die and the second lower die, wherein, in the second step, a part of the second rising portion which is connected to a vertical ridge line (108) is shear-deformed.

METHOD FOR MANUFACTURING PRESS-FORMED ARTICLE, PRESS-FORMED ARTICLE, AND PRESS-FORMING APPARATUS

A method for manufacturing a press-formed article (100) includes a first step for forming a base sheet portion, a first rising portion, and a first strip portion from a sheet-shaped workpiece having a first edge portion and a second edge portion; and a second step for forming a second rising portion by causing a strip-shaped first zone including the second edge portion to be disposed between a first upper die and a first lower die from both sides, causing a second zone adjacent to the first zone to be disposed between a second upper die and a second lower die from both sides, and moving the first upper die and the first lower die relative to the second upper die and the second lower die, wherein, in the second step, a part of the second rising portion which is connected to a vertical ridge line (108) is shear-deformed.

TIGHT SPACE PILOT
20230058550 · 2023-02-23 · ·

A tight space pilot, tight space pilot assembly, and related method includes a tight space pilot that can be installed into a die without fasteners, fastener apertures, or added blocks for mounting. The tight space pilot assembly includes ejectors that are retained by the pilot and a retaining ring that holds the tight space pilot in place in a die member.

TIGHT SPACE PILOT
20230058550 · 2023-02-23 · ·

A tight space pilot, tight space pilot assembly, and related method includes a tight space pilot that can be installed into a die without fasteners, fastener apertures, or added blocks for mounting. The tight space pilot assembly includes ejectors that are retained by the pilot and a retaining ring that holds the tight space pilot in place in a die member.

MANUFACTURING METHOD OF PRESS FORMED PRODUCT, PRESS FORMING APPARATUS, AND PRESS FORMING LINE

A manufacturing method of a press forming product, includes: constraining a first face of an intermediate formed product, the intermediate formed product including the first face, a raised face, and a first ridgeline located between the first face and the raised face, and performing flange forming of press forming the raised face into a second face, a flange, and a second ridgeline located between the second face and the flange, wherein: the first ridgeline extends while being convexly curved in a direction from the raised face toward the first face, and the second ridgeline extends while being convexly curved in a direction from the flange toward the second face, viewed from a press direction of the press forming; a convex direction of the first ridgeline in a cross section along the press direction intersecting with the first ridgeline and a convex direction of the second ridgeline in a cross section along the press direction intersecting with the second ridgeline are on the same side; a curvature radius, on a straight line orthogonal to the second ridgeline, in an extending direction of the first ridgeline at an intersection with the straight line in the intermediate formed product is larger than a curvature radius in an extending direction of the second ridgeline on the straight line after the flange forming step; and an angle formed by the second face at a position corresponding to the first ridgeline after the flange forming step is larger than an angle formed by the raised face and the first face which are adjacent to the first ridgeline in the intermediate formed product.