摘要:
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.
摘要:
The present invention relates to a sheet metal component (10), comprising: a three dimensionally shaped first surface (22); a three dimensionally shaped second surface (26) opposite to the first surface (22); and an edge interconnecting and extending about the perimeter of the first and second shaped surfaces(22, 26), the edge including a sheared portion formed during a trimming operation and an indented portion (28) formed during a forming operation prior to the trimming operation.
摘要:
A cutoff unit (57) for cutting a variably swept continuous beam (56) extending from a roll forming mill (56) includes a pickup subassembly (60) for tracking a shape of the continuous beam (56), and a cutoff subassembly (61) that engages and supports sides of the continuous beam (56) while a blade (64) slices transversely through the continuous beam (56). A controller (55) connected to the roll forming mill (54) and to the cutoff unit (57) controls the cutoff unit (57) to allow pass through of the continuous beam (56), and is configured to actuate the pickup (60) and then actuate the blade (64) to cut the continuous beam (56) into longitudinally symmetrical beam segments (58), each having a center section (51) (swept or not) and with mirror-image equally-swept end sections (52).
摘要:
The invention relates to a press device which is to be modified such that profile rods can also be removed by a shearing movement. The tool (10) is configured in such a manner that a cutting plate (20, 21) can be fixed to each pivoting arm (11) and is displaceably mounted in the opposite pivoting arm. The clamping arms (16) of the pivoting arms (11) have a fork-shaped (25) slit and the cutting plates (20, 21) are maintained in the clamping arms (16) with the aid of fixing bolts (26).
摘要:
[Problem to be Solved] To obtain a high-quality billet with a minimum amount of deformation, the billet is borne in an optimum condition during cutting. [Solution Means] When moved downward, a movable cutting tool 4 begins to cut into stock while causing a distortion to the stock. At this time, a billet bearing shoe 15 bears the billet from below. When a ram 2 further moves downward, a projecting cam 26 moves along an inclined surface 24 of a recessed cam 23 on a shoe support shaft 17 against the force of coned disk springs 30. Upon completion of the fracture of the billet, the projecting cam 26 sliding along the inclined surface 24 runs onto the outer peripheral surface of the shoe support shaft 17, and the billet bearing shoe 15 withdraws so that the billet can drop.
摘要:
A covering cutter comprises a plurality of cutting modules, each module comprising a cutting die (46, 48, 50, 52) and a cutting member (34, 36, 38, 40). Each cutting die (46, 48, 50, 52) has an aperture which is adapted to locate a window covering. Each cutting member (34, 36, 38, 40) has a cutting surface movable across the aperture to cut a covering located in the die. The covering cutter also comprises actuation means (24) to operate movement of each cutting member such that all of the cutting members are moved across their respective apertures upon each operation of the actuation means.