In a method for producing an extruded bearing journal, the bearing journal is extruded in an extrusion tool by means of at least one extrusion punch and, after the extrusion of the bearing journal, reworking of the bearing journal is performed in order to improve the cylindricity of the bearing journal at least over a section of the longitudinal extent of the bearing journal. During the reworking, the bearing journal is arranged, at least over a section of its longitudinal extent adjoining its free end, in a cavity that is delimited in a radial direction of the bearing journal by a wall surface surrounding the lateral surface of the bearing journal, and a reworking punch which is movable in the longitudinal direction of the bearing journal is moved toward the free end of the bearing journal and is pressed against the face surface of the bearing journal and, in this way, a plastic deformation of the bearing journal, with a flow of material of the bearing journal, is effected.

A button badge making machine includes a support frame and a lower die. The support frame includes a lower support member and first and second resilient units projecting upwardly from the lower support member and respectively having upwardly facing first and second support surfaces. The lower die includes a lower center die seat disposed on the lower support member, and a lower peripheral die seat surrounding and movable relative to the lower center die seat. The lower peripheral die seat is turnable about a rotating axis relative to the lower support member between first and second angular positions to be supported by the first and second support surfaces, respectively, with different resilient supports.

A coated plier hand tool with a fixed loop provided in a handle grip to promote security of the tool via tether to a work belt, work vest, work bag or similar receiving article, and methods for fabricating such tool.

A coated plier hand tool with a fixed loop provided in a handle grip to promote security of the tool via tether to a work belt, work vest, work bag or similar receiving article, and methods for fabricating such tool.

A button badge making machine includes a support frame and a lower die. The support frame includes a lower support member and first and second resilient units projecting upwardly from the lower support member and respectively having upwardly facing first and second support surfaces. The lower die includes a lower center die seat disposed on the lower support member, and a lower peripheral die seat surrounding and movable relative to the lower center die seat. The lower peripheral die seat is turnable about a rotating axis relative to the lower support member between first and second angular positions to be supported by the first and second support surfaces, respectively, with different resilient supports.

A button badge making machine includes a support frame and a lower die. The support frame includes a lower support member and first and second resilient units projecting upwardly from the lower support member and respectively having upwardly facing first and second support surfaces. The lower die includes a lower center die seat disposed on the lower support member, and a lower peripheral die seat surrounding and movable relative to the lower center die seat. The lower peripheral die seat is turnable about a rotating axis relative to the lower support member between first and second angular positions to be supported by the first and second support surfaces, respectively, with different resilient supports.

A swaging device includes a top die and a bottom die that can move in a vertical direction between an open position and a closed position. Each die includes an inclined surface, and the device further includes swaging elements each having a complementary inclined surface that is in contact with the inclined surface of each die, both in the open position and in the closed position. The swaging elements are arranged opposite one another such that in at least any position other than the open position, they are in contact by certain non-inclined surfaces opposite the complementary inclined surfaces.

A swaging device includes a top die and a bottom die that can move in a vertical direction between an open position and a closed position. Each die includes an inclined surface, and the device further includes swaging elements each having a complementary inclined surface that is in contact with the inclined surface of each die, both in the open position and in the closed position. The swaging elements are arranged opposite one another such that in at least any position other than the open position, they are in contact by certain non-inclined surfaces opposite the complementary inclined surfaces.

An apparatus for manufacturing a forged crankshaft includes a pair of upper and lower dies and a first tool. The pair of dies deforms first excess portions and thereby thickens both side portions of a rough crank arm, in a region near a rough pin adjacent thereto. The first tool is fitted in an open space made in the pair of dies, and is capable of coming into contact with a rough-journal-facing surface of the rough crank arm, except the side portions in the region near the adjacent rough pin. The first pair of dies and the first tool have first guides to guide the first tool from a retracting position to a contacting position. The first guides include a first guide disposed on at least one of an upper surface and a lower surface of the first tool.

A drive system with full surface drive contact. The drive system tends to maximize the surface contact pattern or area at typical bit-recess reaction (drive) torque values, thereby tending to minimize bit-recess surface contact stresses, coating damage, recess ream and premature bit fatigue failure. The drive system comprises a fastener and/or bit having drive surfaces formed of either polygon involutes or a single arc construction. A punch is also provided for forming a recess in either the fastener or the bit, wherein the punch has corresponding surfaces.