摘要:
The present invention relates to a method of hardening slides of a perforating press comprising providing a steel beam; hardening of the steel beam in a vacuum furnace; tempering the steel beam twice; first straightening of the steel beam at a temperature of 20° C. ± 10° C.; milling of an at least partially continuous sawtooth profile, along a longitudinal direction of the steel beam, on a first side of the steel beam; wherein, after milling the at least partially continuous sawtooth profile on the first side of the steel beam, a second side of the steel beam, lying opposite the first side, is hardened by means of induction currents, after which the steel beam is again tempered twice and after which the steel beam is straightened a second time at a temperature of 20° C. ± 10° C. The invention also relates to a slide for a perforating press hardened according to the method.
摘要:
A method for forming welded assembly. The method includes: providing a gear workpiece; forming a joining section on the gear workpiece that defines a weld interface; applying a material to the outside surface of the gear workpiece including the joining section; cutting a plurality of teeth in the material-covered gear workpiece, each of the plurality of teeth having first and second flanks and a root, wherein the material does not reside on any one of the first flanks, the second flanks and the roots; heat treating the gear workpiece to harden the teeth; and finishing the heat-treated gear workpiece in a finishing process to form a finished ring gear, the finishing process comprising at least one of a turning operation and a lapping operation; wherein the material is disposed over the weld interface on the finished ring gear. A welded assembly is also provided.
摘要:
A method for skiving machining a toothed workpiece includes the steps of: providing the toothed workpiece rotatable about a workpiece axis; providing a toothed tool rotatable about a tool axis; tilting the tool axis through an azimuth angle φ>0° with respect to an x direction; tilting the tool axis furthermore through a polar angle Θ
摘要:
A gear cutter is provided. At least one cutting insert is mounted on a body member. The cutting insert has a first end and a second end, the first end including side faces that are configured to converge inwardly toward each other as they extend to a tip portion, the side faces and the tip portion intersecting with a forward face so as to define a first cutting edge. The second end including side faces that are configured to converge inwardly toward each other as they extend to a tip portion. The side faces and tip portion intersect with the forward face so as to define a second cutting edge. Each of the cutting edges has a full involute configuration that matches a desired configuration of a gap between adjacent teeth of a gear.
摘要:
An exemplary modified tooth proportion gear cutter includes a gear cutter that has a plurality of cutting teeth, and each one of the cutting teeth has a pair of cutting edges configured to cut a gear in a blank orientation so as to provide the gear in a final orientation. The gear in its final orientation has an involute tooth profile including a plurality of cut teeth and a plurality of valleys therebetween. The cutting edges are configured to cut the gear in the blank orientation, such that the gear in the final orientation includes the involute tooth profile with an active profile section and an operating pitch diameter that is spaced apart from the active profile section.
摘要:
Milling tool has a tool body with a fixing end, an opposite outer end, and a peripheral surface. The tool body comprises a large number of separated seats arranged at the peripheral surface one after the other along a helix line having a constant pitch. Corresponding large number of replaceable milling inserts comprise an under side, an opposite upper side forming a chip surface, a circumferential edge side, and two pairs of main cutting edges. The chip surface extends in an extension plane that comprises the main cutting edges. Each seat receives one of the milling inserts and comprises a support surface allowing support to the milling insert projecting from the tool body for cutting engagement with a gash of the workpiece. The chip surface extension plane of each milling insert has a normal parallel to the tangent of the helix line where the same intersects the extension plane.
摘要:
A continuous method of manufacturing a face gear utilizing a tool, representing a plane which can be oriented to a face gear workpiece under an angle equal to the pressure angle of the mating pinion member of the gear set (e.g. the face gear set), and, which can be rotated around a virtual pinion axis to generate a tooth flank on the workpiece. The tool is a face cutter which performs a continuous indexing motion with equal hand of rotation of cutter and workpiece (e.g. face gear) thereby describing a hypocycloid path of motion and an indexing ratio of two cutter rotations during one workpiece gear rotation which will produce straight lines along the face width of the face gear.
摘要:
The invention discloses an improved tool and inserts for concurrently milling multiple splines on a round (rod) material. Replaceable inserts having teeth formed to have their cutting edges shaped in the arc of a circle are disclosed. The inserts each include at least two sets of rough milling teeth. The tool holder shank includes recesses which provide a common or universal unit for receiving various sized groupings, each comprising an insert, a wedge for securing the insert, and a supporting member for the insert.
摘要:
A rack and pinion gear having helical teeth. A conical hob is employed for cutting recessed rack teeth in the work piece by continuously engaging the hob and work piece as the work piece moves longitudinally beneath (or with respect to) the rotating hob. To mate with the helical teeth in the rack, a helical gear having rounded or arcuate teeth is provided.