Provided is a manufacturing method of a bottomed cylindrical body, which can achieve both severe can making processing such as conventional drawing and ironing, and cost reduction and environmental load reduction in a washing step. A manufacturing method of a bottomed cylindrical body includes a drawing step of drawing a metal sheet by use of forming members each of which has a hardness of Hv 1500 to 12000 at its processing surface, and an ironing step of ironing a workpiece into the bottomed cylindrical body via a coolant by use of forming members each of which has a carbon film at its processing surface, and the coolant is a water-soluble coolant or a coolant having a boiling point of lower than 300° C., or a manufacturing method of a bottomed cylindrical body includes a drawing step of drawing a metal sheet by use of a drawing die, which has a hardness of more than Hv 1500 to 12000 at its processing surface, and a drawing punch, which has a hardness of Hv 1000 to 12000 at its processing surface, and an ironing step of ironing a workpiece into the bottomed cylindrical body via a coolant by use of forming members each of which has a hardness of Hv 1500 to 12000 at its processing surface, and the coolant satisfies at least any one of (a) a coolant of lower than 4.0 vol. % concentration of contained oil, (b) a water-soluble coolant, and (c) a coolant having a boiling point of lower than 300° C.

There is provided a method for manufacturing a bottomed cylindrical body, the method being capable of achieving both a conventional hard can manufacturing process such as drawing and ironing and reduction in the cost and the environmental load in a degreasing step. The method for manufacturing a bottomed cylindrical body includes a lubricant application step of applying liquid (lubricant) having a viscosity of lower than 200 mPa.Math.s to a surface of a metal plate, a drawing step of drawing the metal plate to which. the lubricant has been applied, with use of a forming member having a processing surface having a hardness of Hv 1000 to 12000, an ironing step of ironing, with use of another forming member having a processing surface having a hardness of Hv 1500 to 12000, a workpiece with a coolant interposed between the workpiece and the another forming member, to form a bottomed cylindrical body, and a degreasing step of degreasing oil on a surface of the bottomed cylindrical body with use of a cleaning agent. The concentration of oil contained in the coolant is lower than 4.0 percent by volume. The cleaning agent contains any one of sulfuric acid, hydrofluoric acid, potassium carbonate, sodium hydroxide, and potassium hydroxide. The temperature of the cleaning agent in the degreasing step is lower than 75° C.

The invention relates to a system for making a metal product, comprising —a lubrication source (225) for applying a first lubricant (235) on a punch side of a sheet metal blank (205); —a controllable current source (250) for applying different amounts of current; and —a punch (215) and a die (220) for drawing the sheet metal blank (205) into a metal product, wherein the controllable current source (250) is electrically coupled to one or more of the punch (215), the die (220), or a contact point for applying current through the first lubricant (235) while the sheet metal blank (205) is drawn by the punch (215) and the die (220) into the metal product and while the metal product is being ejected from the punch (215). The application further relates to a method for making a metal product with a such system. The invention relates also to a container manufacturing system (700), comprising —a cylindrical ram (720) comprising a ram body (722) and a ram nose on a distal end of the ram body (722), the ram nose engageable with abase of a container preform; —a die (730) comprising an opening concentrically aligned with the cylindrical ram (720), the opening sized and shaped for receiving the container preform in response to the ram nose engaging with the base of the container preform and the cylindrical ram (720) driving the container preform through the die opening; and —an ultrasonic device (740) coupled with the die (730), wherein the ultrasonic device causes the die (730) to vibrate while the cylindrical ram (720) drives the container preform through the die opening. The application further relates to a method for forming an aluminium container with such system and a die (730) for forming an aluminium container.

[Object]

A pressing die and a press working method that can achieve both facilitation of management of an appropriate clearance and working durability at a high level are provided.

[Solving Means]

The pressing die of the present invention is a pressing die for press working a metal material using a punch part and a die part. A working surface of one of the punch part and the die part is coated with a diamond film the working surface contacting with the metal material. A working surface of the other one of the punch part and the die part is coated with a surface treatment film having a Vickers hardness of 8000 Hv or less the working surface contacting with the metal material.

Provided is a machining jig on which a carbon film (3) is formed on a machining surface of a rigid substrate (1), in which the carbon film (3) indicates a Raman spectroscopy spectrum with an intensity ratio, represented by the formula: I.sub.D/I.sub.G (where I.sub.D is the maximum peak intensity at 1333±10 cm.sup.−1 in the Raman spectroscopy spectrum of the carbon film surface, and I.sub.G is the maximum peak intensity at 1500±100 cm.sup.−1 in the Raman spectroscopy spectrum of the carbon film surface), exceeding 0.6. Also provided is a method of manufacturing seamless can bodies, the method including a step of using a mold machining member, on which a diamond film is formed on a machining surface, to press work a metal material onto the machining surface of the mold machining member in a state where a coolant is interposed.

A method and apparatus for producing two-piece can bodies by drawing and ironing a laminated metal sheet, and more particularly to a processing method which prevents abrasion damage or scuffing of the laminate layer on the can body during its ironing, and a drawn and ironed two-piece can body produced thereby.

A wiping unit for a reciprocating ram includes a subunit including: a ring-shaped wipe member including a lip to press an outer peripheral surface of the ram; and an elastic ring disposed on an outer circumference of the wipe member and configured to press the lip on the outer peripheral surface of the ram. The wipe member is made of rigid resin.

A die pack mounting for a bodymaker includes a die pack mounting bed and a die pack mounting door assembly. The die pack mounting door assembly is movably coupled to the die pack mounting bed. The die pack mounting door assembly is movable between an open, first position, wherein the die pack mounting door assembly is structured to support a die pack in a maintenance configuration, and, a closed, second position, wherein the die pack mounting door assembly fixes the die pack in a selected position. Further, the die pack mounting door assembly does not include any coolant fluid fittings. That is, the die pack mounting door assembly defines internal passages for coolant and the coolant is supplied via similar passages in the die pack mounting bed.

A toolpack for a can bodymaker with a vertically oriented, reciprocating, elongated ram assembly is provided. The toolpack includes a tool pack housing assembly, a number of die spacers, a number of dies, and a compression device. The tool pack housing assembly defines a passage and includes an inner surface, an upper sidewall, a lower sidewall, a first lateral sidewall, a second lateral sidewall, a rear sidewall, and a door. The tool pack housing assembly passage extends generally vertically. Each die spacer structured to support a die and defining a central passage. Each die including a body defining a central passage. The die spacers and dies are disposed in said tool pack housing assembly. The compression device is disposed at said tool pack housing assembly lower sidewall and is structured to axially bias said number of die spacers.

A fluid-cooled toolpack for cooling can-forming dies without allowing cooling fluid to contaminate or contact the cans or the interior of the can bodymaker during production. The fluid-cooled toolpack generally includes a chill plate that is biased with a spring into contact with a can-forming die. The chill plate may be generally ring shaped and include annular heat pipes to carry heat away from the can-forming die to a set of heatsink fins at the top of the chill plate. Cooling fluid, such as water or air, can be used to remove heat from the heatsink fins. The chill plate can also be used to preheat the can-forming die before the equipment is used if desired, since the heat transfer of the system is non-directional.