When provisionally blanking a lamination sheet by using a punch for provisional blanking and a counter punch, the displacement of pilot holes located around the lamination sheet is minimized. The progressive die machine (1) comprises a pilot hole punch (72), a punch (9) for provisionally punching an iron core laminate (2) from a strip (W) formed with pilot holes (P), a counter punch (31) provided in a lower die assembly (5) and configured to push the iron core laminate (2) against the punch (9), a stripper plate (13) for separating the strip (W) from the provisional blanking punch after a provisional punching, a punch (10) for completely separating the iron core laminate from the strip. At least a part of the stripper plate (13) associated with the provisionally blanking is not in contact with the strip, and at least a part of an outer peripheral part of the provisionally blanked lamination sheet is formed with a connecting portion (79) connected to the strip.

An eating utensil includes a food-holding portion and a handle. The handle includes a connection portion connected to the food-holding portion, a gripping portion opposite to the connection portion and distal to the food-holding portion, an upper surface formed on the connection and gripping portions, a lower surface formed on the connection and gripping portions oppositely of the upper surface, a slot formed in the connection portion and extending through the upper and lower surfaces, and a punched-out tongue portion connected to the connection portion and curvedly and downwardly extending away from the slot. The punched-out tongue portion has a free end.

An eating utensil includes a food-holding portion and a handle. The handle includes a connection portion connected to the food-holding portion, a gripping portion opposite to the connection portion and distal to the food-holding portion, an upper surface formed on the connection and gripping portions, a lower surface formed on the connection and gripping portions oppositely of the upper surface, a slot formed in the connection portion and extending through the upper and lower surfaces, and a punched-out tongue portion connected to the connection portion and curvedly and downwardly extending away from the slot. The punched-out tongue portion has a free end.

A flue baffle for a water heater comprises a plurality of holes along a length of the baffle and a plurality of bent blades along the length of the baffle, where each hole of the plurality of holes is adjacent to a bent blade of the plurality of bent blades. The holes are configured to permit flue gas to pass through the holes. The bent blades can have an alternating pattern where a first bent blade extends from one side of the baffle and the next bent blade extends from an opposite side of the baffle. A press tool for forming the baffle comprises a piercing tool for forming the plurality of holes and a lance and fold die for forming the bent blades.

A processing apparatus includes an upper die assembly a lower die assembly and a driving mechanism. The upper die assembly includes a first cutter. The lower die assembly includes a second cutter and a lower die plate. The lower die plate has an upper end portion facing the upper die assembly. The second cutter includes a second cutting edge portion higher than the upper end portion. Further provided is a control method for the processing apparatus, and a heat exchanger.

The invention relates inter alia to a method for cutting a workpiece, in particular a blank or a component, comprising the following steps: inserting the workpiece (3) into a cutting device, wherein the cutting device comprises a first tool half (1) having at least one workpiece holder (12) and at least one first cutting means (11), which comprises a first cutting edge (111) and a contact surface (112), and a second tool half (2) having at least one second cutting means (21) having a second cutting edge (211) and a contact surface (212), clamping the workpiece (3) by means of the workpiece holder (12) and the contact surface (212) of the second cutting means, cutting the workpiece (3) by means of the cutting means (11, 21), the workpiece (3) undergoes, prior to cutting, both a first prebending, which is produced substantially in the opposite direction counter to the cutting direction, and thereafter a second prebending in the cutting direction.

The invention relates inter alia to a method for cutting a workpiece, in particular a blank or a component, comprising the following steps: inserting the workpiece (3) into a cutting device, wherein the cutting device comprises a first tool half (1) having at least one workpiece holder (12) and at least one first cutting means (11), which comprises a first cutting edge (111) and a contact surface (112), and a second tool half (2) having at least one second cutting means (21) having a second cutting edge (211) and a contact surface (212), clamping the workpiece (3) by means of the workpiece holder (12) and the contact surface (212) of the second cutting means, cutting the workpiece (3) by means of the cutting means (11, 21), the workpiece (3) undergoes, prior to cutting, both a first prebending, which is produced substantially in the opposite direction counter to the cutting direction, and thereafter a second prebending in the cutting direction.

A method for producing a component by forming a plate from steel at room temperature having a high formability and reduced crack sensitivity of edges that have been mechanically cut or punched on the plate, includes: cutting the plate from a strip or metal sheet at room temperature; heating edge regions of the plate that underwent strain hardening as a result of the cutting step to a temperature of at least 600° C. for a time period of at most 10 seconds; and forming the plate in one or more steps into a component at room temperature, wherein in the forming step the edge regions heated in the heating step are subjected to cold forming.

A method for producing a component by forming a plate from steel at room temperature having a high formability and reduced crack sensitivity of edges that have been mechanically cut or punched on the plate, includes: cutting the plate from a strip or metal sheet at room temperature; heating edge regions of the plate that underwent strain hardening as a result of the cutting step to a temperature of at least 600° C. for a time period of at most 10 seconds; and forming the plate in one or more steps into a component at room temperature, wherein in the forming step the edge regions heated in the heating step are subjected to cold forming.

A hot-stamped and trimmed part is produced by hot pressing a blank and then cutting off an excess outer peripheral portion by laser machining, an outer peripheral shape of the hot-stamped and trimmed part includes a laser trim line formed by cutting in the laser machining, and a press trim line formed by shearing in the hot pressing or pressing performed before the hot pressing, and the laser trim line and the press trim line are connected via a projecting corner portion.