B21D22/20

Forming tools having textured surfaces

A forming tool stamps sheet metal blanks into a desired shape. A contoured surface is defined for the forming tool so that respective portions of the metal blank flow over the contoured surface during forming. An intrinsic material flow pattern resulting from the contoured surface is compared to a desired flow in order to identify regions of the contoured surface having an insufficient flow that creates areas in the formed metal blank receiving less than a desired amount of metal. A surface microtexture is applied onto the contoured surface in a pattern selected to increase metal flow along the identified regions by providing a coefficient of friction in the identified regions that is reduced relative to adjacent regions of the contoured surface.

PLATED STEEL MATERIAL

A plated steel material comprising a steel base material and an Al—Zn—Mg-based plating layer formed on a surface of the steel base material, wherein the plating layer has a predetermined chemical composition, and in a surface structure of the plating layer, there is, by area ratio, 2.0% or more of an acicular Al—Zn—Si—Ca phase.

PRESS-FIT STRUCTURE AND PRESS-FIT METHOD THEREOF
20230193934 · 2023-06-22 ·

A press-fit structure and a press-fit method are introduced. The press-fit structure includes a body, a pressurizing portion, a material storage space, a restricting portion and a limit stop portion. The pressurizing portion is for applying a pressure on an object to cause a material of the object to flow into or enter the material storage space. The object is restricted by the restricting portion, and a restriction direction of the press-fit structure is restricted by the limit stop portion. Thus, the press-fit structure and the press-fit method of the present disclosure are enabled to provide a required object with a stable assembly effect.

Press forming method
09833826 · 2017-12-05 · ·

A press forming method presses and forms a formed part including: a top portion having a projecting outer edge, a part of the projecting outer edge projecting outward; and a flange portion that formed by bending along the projecting outer edge of the top portion. The press forming method includes: a first forming step of forming, at a region of a blank material in which the flange portion is to be formed, a preformed part including a vertical wall portion to be a part of the flange portion and a trough portion that is bent outward from the vertical wall portion and recessed on a side of the top portion; and a second forming step of forming the flange portion by bending a region including the trough portion of the preformed part formed in the first forming step.

Can body take-away mechanism for a vertical bodymaker
09833830 · 2017-12-05 · ·

A can body take-away assembly for a can bodymaker with a vertically oriented, reciprocating, elongated ram assembly and a domer is provided. The take-away assembly includes a drive assembly and a can body transport assembly. The drive assembly includes a motor and a support member. The take-away assembly motor is operatively coupled to the support member and structured to move the drive assembly support member in a generally horizontal direction. The can body transport assembly includes a number of gripping assemblies. Each gripping assembly is coupled to the drive assembly support member. Each gripping assembly includes a number of pairs of opposed gripping members sized to grip a can body. The gripping assemblies are structured to travel across the path of the ram assembly and to selectively grip a can body.

Hot-press deep-drawing forming method and hot-press deep-drawing forming method apparatus

A hot-press deep-drawing forming apparatus includes a punch that constitutes a lower die and a die that constitutes an upper die. The punch has an inner-face forming surface that forms the inner face of a product, and a bent corner against which a scrap section S of a workpiece W abuts. The die has an outer-face forming surface that forms the outer surface of the product. A blank holder and a pre-forming die that clamp the scrap section are caused to move, together with the die, until the clamped scrap section abuts the bent corner. The movement of the blank holder and the pre-forming die is stopped after the scrap section has abutted the bent corner.

METHOD FOR PRODUCING A COMPONENT FROM DIFFERENT MATERIALS, AND COMPONENT AND USE THEREFOF

A method may be used to produce a component that includes at least two different materials. The method may involve providing a hardenable planar or preformed steel sheet or steel profile, completely or partially heating the steel sheet or steel profile to the austenitic temperature, inserting the heated steel sheet or steel profile into a first tool for hot forming and/or press hardening the steel sheet or steel profile to give a completely or partially hardened steel workpiece. In the course of the hot forming and/or press hardening at least one jog is made in the steel sheet or the steel profile. The jog may serve for fastening at least one second material thereto.”

CAN FORMING MACHINE
20170341129 · 2017-11-30 · ·

A can forming machine includes a can body holder in which the can body does not fall at an unexpected time. A knockout unit has a knocking out piston which is disposed to be movable in a depth direction of a recess and is provided to be displaceable between a protruding position at which the knocking out piston protrudes into the recess and an recessed position at which the knocking out piston exits the recess, and a cylinder which supports the knocking out piston to be displaceable. At a discharge position, at which the formed can body is discharged from the recess of the can body holder, a piston displacing unit, which displaces the knocking out piston from the recessed position toward the protruding position, is provided adjacent to the other surface side of the base.

CAN FORMING MACHINE
20170341129 · 2017-11-30 · ·

A can forming machine includes a can body holder in which the can body does not fall at an unexpected time. A knockout unit has a knocking out piston which is disposed to be movable in a depth direction of a recess and is provided to be displaceable between a protruding position at which the knocking out piston protrudes into the recess and an recessed position at which the knocking out piston exits the recess, and a cylinder which supports the knocking out piston to be displaceable. At a discharge position, at which the formed can body is discharged from the recess of the can body holder, a piston displacing unit, which displaces the knocking out piston from the recessed position toward the protruding position, is provided adjacent to the other surface side of the base.

Yoke housing, motor, and method for manufacturing yoke housing with improved deformation resistance
09831737 · 2017-11-28 · ·

A yoke housing includes a tubular case and a flange. The tubular case is formed from a metal sheet in a drawing process. The flange is formed at an end of the tubular case. The flange has a width in the lateral direction that is equal to the outer diameter of the tubular case. The flange has a base including beads and a thick portion. Each of the beads is formed by compressing the base. A portion of the base in which the beads are not formed defines a thick portion. The thick portion is located at a middle portion of the flange in the lateral direction. The beads are located on opposite sides of the thick portion in the lateral direction.