Abstract: In order to produce a formed part furnished with a through hole, a rod material is advanced by a defined length in the direction of its lengthwise extension into a forming die through a stationary guide and then immobilised by a clamping arrangement that engages with it circumferentially. The end portion of the rod material is then axially swaged by a swaging tool and is thus shaped into a disc, the circumference of which is defined by the forming die. The disc is then penetrated axially by a dishing tool and impact extruded at the same time, the displaced material flowing between the dishing tool and the inner circumferential wall of the forming die. The formed part located in the forming die is then rotated coaxially relative to the rest of the rod material and thereby separated from the rest of the rod material by torsion shearing.

Abstract: In order to produce a formed part furnished with a through hole, a rod material is advanced by a defined length in the direction of its lengthwise extension into a forming die through a stationary guide and then immobilised by a clamping arrangement that engages with it circumferentially. The end portion of the rod material is then axially swaged by a swaging tool and is thus shaped into a disc, the circumference of which is defined by the forming die. The disc is then penetrated axially by a dishing tool and impact extruded at the same time, the displaced material flowing between the dishing tool and the inner circumferential wall of the forming die. The formed part located in the forming die is then rotated coaxially relative to the rest of the rod material and thereby separated from the rest of the rod material by torsion shearing.

Abstract: A training aid for golfers visually indicates proper foot placement with respect to a golf ball and a selected golf club. The training aid includes a housing, a panel mounted on the housing, circuitry mounted in the housing, at least one ball sensor interconnected with the circuitry, and a light source mounted in the housing. The light source provides a visual guide indicating a proper distance for placement of a user's feet relative to a golf ball at a particular position. The panel includes a display, a club select button, a distance adjustment button, a depth adjustment button, a save button, and a card reader. The circuitry includes a processor and memory, a ball sensor interface, a light source interface, a mirror servo interface, and a toe marker servo interface. The training aid also includes a mirror servo, a toe marker servo, a battery holder, and a power interface.