An articulation joint manufacturing process comprises cutting an elongated tube to form a multiplicity of links wherein adjacent links are connected by a bridge. The method comprises forming a fracturable portion on each bridge and connecting a multiplicity of springs to adjacentts links to form a workpiece. The method further comprises applying a torsional force to the workpiece about its longitudinal axis to fracture each bridge to form an articulation joint comprising a series of links wherein adjacent links are connected by at least one spring. Certain steps are formed by a laser. In one method, the springs are positioned on a mandrel and the springs are welded to the workpiece. The fracturable portion on the bridges may be produced by forming an indentation which may be a score, a perforation, an elongated indentation or an oval shaped indentation.

A shear press (100) for scrap is described, comprising a machine body (105) defining a compaction channel (125) adapted to contain the scrap and guide it in a sliding manner along a predetermined advance direction (A), compaction means (155) coupled to the machine body (105) and adapted to compact the scrap in the compaction channel (125), and cutting means (180) coupled to the machine body (105) and positioned at one end of the compaction channel (125) to separate the compacted scrap into portions, wherein the machine body (105) comprises at least two mutually separable blocks, of which a first block (105A) to which the compaction means (155) and the cutting means (180) are coupled, and a second block (105B) defining a portion of the compaction channel (125) adapted to serve as a loading hopper for the scrap to be treated.

A shear press (100) for scrap comprising a machine body (105) defining a compaction channel (125) adapted to contain the scrap and guide it in a sliding manner along a predetermined advance direction (A), compaction means (155) and cutting means (180); wherein the compaction means (155) comprise: two mutually opposed jaws (170) articulated to the machine body (105) according to axes of rotation (B) parallel to each other and orthogonal to the advance direction (A) of the scrap, and actuating members (175) adapted to rotate said jaws (170) around the respective axes of rotation (B), in opposite directions, between an open configuration and a closed configuration, thereby reducing the space between the two jaws (170); wherein each jaw (170) comprises an operating surface (400) adapted to laterally de-limit the compaction channel (125) when the jaw (170) is in open configuration; wherein the cross section of said operating surface (400), carried out with respect to a section plane orthogonal to the axis of rotation (B), comprises an end (405) proximal to the axis of rotation (B), an end (410) distal from the axis of rotation (B) and at least one first rectilinear stretch (415) that is parallel to the advance direction (A) of the scrap when the jaw (170) is in the closed configuration, and wherein the extreme point (420) of said first rectilinear stretch (415) with respect to the axis of rotation (B) of the jaw (170) does not coincide with the distal end (410) of the cross section of the operating surface (400) but is aligned to the latter along a direction of alignment (C) which forms, with said first rectilinear stretch (415), an angle () having its vertex facing the inner part of the compaction channel (125).

A surgical rod scorer is provided. The surgical rod scorer includes a pair of elongated shaft members that are pivotably coupled to one another and movable from a spaced-apart configuration to an approximated configuration. Each of the shaft members includes a handle member that is configured for gripping by a user and jaw member that is configured to support respective first and second cutting assemblies thereon. The first and second cutting assemblies each include one or more cutting elements thereon configured and dimensioned to score surgical rod when the jaw members are in the approximated configuration and rotated about the surgical rod.

A trimmer device includes an inner mounting block having a first central aperture for receiving a turret shaft. The inner mounting block has an inner bore. The device includes an outer mounting block having a second central aperture for receiving the turret shaft. The outer mounting block has at least one outer bore. The device includes an inner trimmer spindle positioned through the inner bore. A first end of the inner trimmer spindle includes a pilot having an inner spindle blade. The device further includes an outer trimmer spindle positioned through the outer bore. The outer trimmer spindle includes an outer spindle blade positioned at a first end. At least one of the inner mounting block or the outer mounting block is rotatable about the turret shaft to adjust for a diameter of an article such that the article is positioned between the inner and outer spindle blades for trimming.

Provided are a method for splitting longitudinally an end part of a metal plate or a metal rod having a rectangular, polygonal, or elliptical shape, in which the length of incision in the split portion can be freely adjusted and smooth split face can be formed; a metal part manufactured by such method; and a method for bonding such metal part. The present invention is characterized by the process comprising the steps of securing a metal plate by pinching both sides thereof with a clamping device, or securing a metal rod by pinching at least two opposite-facing portions on the periphery thereof with a clamping device; splitting longitudinally by slitting or cleaving the metal plate, or the metal rod, by pressing a slitting punch or a cleaving punch against the face of one end of the metal plate, or the metal rod; and advancing the splitting further by repeating the same operation of pressing the same punch stated above against the cleft of the splitting; and is characterized further in that, in each time of the press-splitting operation, the position of the clamping device on at least one side is moved in advance of the next pressing by a stroke corresponding to the distance from one end of the metal plate, or the metal rod, to the distal end of a split-desired portion.

A slitting machine for threading scrap material includes first and second arbors; rotary knives disposed on each of the first and second arbors; and a pair of notching modules positioned on opposite ends of the first and second arbors. The notching modules each has a pair of shear knives for making multiple cuts in a strip of material passing through the slitting machine forming notches to enable threading of material to scrap chutes from the slitting machine.

A splitting apparatus includes: a lower mold configured to allow placement of a plate material on the lower mold and arranged on a first side with respect to a split target line of the plate material; an upper blade configured to be raised or lowered with respect to the lower mold; and a support member arranged on a second side with respect to the split target line of the plate material. The splitting apparatus is configured that, in a case where the upper blade is lowered with respect to the lower mold in a state where the plate material is supported by the lower mold and the support member, a cut is formed on the split target line of the plate material by the upper blade, a crack is formed in conjunction with formation of the cut, and the plate material is split along the split target line.

A connecting rod manufacturing method includes: forming, in an inner circumferential surface of a through-hole formed at an end of the connecting rod, a plurality of first holes as fracture start portions such that the first holes are arrayed in an axial direction of the through-hole and extend in a first direction; forming a plurality of second holes as the fracture start portions, each between adjacent ones of the first holes, such that the second holes are arrayed in the axial direction and extend in a second direction different from the first direction relative to the first holes; and fracture-splitting the end of the connecting rod into a rod part and a cap part using the fracture start portions as start points.

The present application provides a residual material removing device, method and system, in which the residual material removing device includes: a loading platform configured to support a material to be cut; a fixing plate abutting against an upper surface of the material to be cut is configured to fix the material to be cut, and one end of the fixing plate is in contact with a residual material in the material to be cut; a first pressing portion in contact with one end of the fixing plate is configured to apply pressing force to one end of the fixing plate to separate the residual material from the material to be cut under the action of the pressing force.