A slew-actuated stamping station includes an expandable core configured to apply radially outward pressure to a radially inward facing surface of a radial wall, and at least one slew-actuated punch for piercing, along a radially inward direction, a respective hole in the radial wall. A method for piercing a radial wall includes simultaneously (a) applying radially outward pressure against a radially inward facing surface of the radial wall, and (b) driving a slew to actuate at least one punch to pierce, along direction opposite the radially outward pressure, at least one hole in the radial wall. A method for forming an object, having a radial wall with holes, includes forming a ring with a radial wall, and piercing at least one hole in the radial wall with at least one slew-actuated punch.

A device and method for forming a hollow wallboard, in particular, for continuously forming a wood/bamboo molded hollow wallboard with embedded reinforcing ribs, feature a simple process, with high production efficiency, and continuous production at low production cost. The method for continuously forming a wood/bamboo molded hollow wallboard with embedded reinforcing ribs includes: 1) driving a punch in a molding cavity by an actuating mechanism to move up and down in a straight line along vertical guide rails, so that the punch moves relative to a plurality of inner molding tubes and a plurality of reinforcing ribs which are vertically provided in the molding cavity and are in a movable fit with the punch; and allowing a heating mechanism to heat both an inner wall of the molding cavity and a wall of the inner molding tubes.

An air conditioner and a method of manufacturing the same are disclosed. The air conditioner includes an indoor heat exchanger and an outdoor heat exchanger, each including a plurality of refrigerant pipes and at least one connection pipe for interconnecting the refrigerant pipes, a brazing hole formed in the connection pipe by punching, and a brazing ring mounted over the brazing hole, wherein portions of the refrigerant pipes are inserted into the connection pipe through inlet ends of the connection pipe, the brazing hole is located between ends of the refrigerant pipes and the inlet ends of the connection pipe, and the connection pipe is bonded to the refrigerant pipes by heating at least one selected from between the refrigerant pipes and the brazing ring.

A soldering nozzle (100) for selectively soldering assemblies by means of molten solder supplied through a soldering nozzle (100) from a solder bath. The soldering nozzle (100) is designed as a deep-drawn part. A method for the production of a soldering nozzle (100) is specified as well, including the provision of a blank (401); the drawing of the blank (401) through at least one female die (411, 421) by means of at least one male die (413, 422, 431) to produce an oblong shape (439) of locally annular or substantially annular cross-section, with a first end (436) corresponding to an action point of the male die (413, 422, 431) and a second end (437) corresponding to an introduction cross-section of the male die (413, 422, 431), the cross-section preferably increasing from the first end (436) towards the second end (437); and the formation of an opening (446) at the tip end (436).

A stator has a stator core composed of teeth and slots. Segment coils are inserted into the corresponding slots. The segment coil projecting from the slot has an exposed conductor part and a covered conductor part covered with an electrical insulation film. The exposed conductor part is arranged at the distal end side from the covered conductor part of the segment coil. The segment coils are connected together through the exposed conductor parts thereof projecting from the slots. The exposed conductor part has a thickness T2 thinner than a thickness T1 of the covered conductor part. A step part is formed at a position of the stator core side, adjacent to the exposed conductor part of the segment coil. The step part and the covered conductor part are covered with the electrical insulation film continuously from the stator core side of the covered conductor part.

A stator has a stator core composed of teeth and slots. Segment coils are inserted into the corresponding slots. The segment coil projecting from the slot has an exposed conductor part and a covered conductor part covered with an electrical insulation film. The exposed conductor part is arranged at the distal end side from the covered conductor part of the segment coil. The segment coils are connected together through the exposed conductor parts thereof projecting from the slots. The exposed conductor part has a thickness T2 thinner than a thickness T1 of the covered conductor part. A step part is formed at a position of the stator core side, adjacent to the exposed conductor part of the segment coil. The step part and the covered conductor part are covered with the electrical insulation film continuously from the stator core side of the covered conductor part.

A slew-actuated stamping station includes an expandable core configured to apply radially outward pressure to a radially inward facing surface of a radial wall, and at least one slew-actuated punch for piercing, along a radially inward direction, a respective hole in the radial wall. A method for piercing a radial wall includes simultaneously (a) applying radially outward pressure against a radially inward facing surface of the radial wall, and (b) driving a slew to actuate at least one punch to pierce, along direction opposite the radially outward pressure, at least one hole in the radial wall. A method for forming an object, having a radial wall with holes, includes forming a ring with a radial wall, and piercing at least one hole in the radial wall with at least one slew-actuated punch.

A slew-actuated stamping station includes an expandable core configured to apply radially outward pressure to a radially inward facing surface of a radial wall, and at least one slew-actuated punch for piercing, along a radially inward direction, a respective hole in the radial wall. A method for piercing a radial wall includes simultaneously (a) applying radially outward pressure against a radially inward facing surface of the radial wall, and (b) driving a slew to actuate at least one punch to pierce, along direction opposite the radially outward pressure, at least one hole in the radial wall. A method for forming an object, having a radial wall with holes, includes forming a ring with a radial wall, and piercing at least one hole in the radial wall with at least one slew-actuated punch.

A drawn and wall ironed beverage can body, method for forming same, and a sealed and filled can, include a through-hole or aperture in the base. A grommet for charging a propellant in can is located in the aperture. The aperture has a burr that is located on the inboard side of the rim of the aperture. A method of forming a valve in the drawn and ironed beverage can body includes positioning a first tool in an interior of the can body, contacting an exterior surface of the base with a second tool such that the first and second tools are aligned, forming the aperture in the base, and inserting the grommet into the aperture.

The present disclosure relates to a coaxial connector and a method for producing an outer contact of the coaxial connector. The coaxial connector comprises a body, an inner contact, an outer contact, and a dielectric spacer. The body may be provided with a through hollow cavity, and the inner contact and the outer contact may be coaxially arranged in the hollow cavity of the body and may be spaced apart radially by the dielectric spacer. The outer contact may be in a shape of thin-wall cylinder and may comprise a plurality of spring fingers. The plurality of spring fingers may be spaced apart circumferentially by a plurality of slots. An end of each spring finger may be provided with a flange, and each flange may extend outwardly in a radial direction and comprises an arc portion and a flat portion. The outer contact with such a structure may provide a good interconnection quality when mating with a corresponding mating connector. The outer contact of the coaxial connector may be formed by stamping a tube, which, compared with prior art method, significantly increases the processing efficiency and reduces material and personnel costs.