The present invention discloses a multifunctional end effector, comprising a base (54) and a cutting tool (39); a feed slide (52) on the base (54) and a feed driving mechanism used to drive feed slide (52) to feed cutting tool (39); a swing slide (55) on the feed slide (52) and a swing driving mechanism used to drive swing slide (55) to realize circular arc swing of cutting tool (39); a mounting base (12) on the swing slider (55); a revolving rotation shaft (20) and a rotation shaft driving mechanism used to drive revolving rotation shaft (20) to make the cutting tool rotate in the mounting base (12); an eccentric slide (27) fixed to the end of revolving rotation shaft (20); cutting tool (39) is connected to the end of eccentric slide (27) via the electric spindle (37) and an eccentric regulating mechanism used to regulate eccentric slide (27) and control radial bias of cutting tool (39). Use feed driving mechanism to realize feed of cutting tool or feed of cutting tool along the swing trail through combination with swing driving mechanism; use eccentric regulating mechanism to realize radial bias of cutting tool; make use of rotation shaft driving mechanism to realize feed of cutting tool along the helical trail; it can realize such functions as drilling, boring, reaming, helical milling and reaming of elliptical recess.

Provided is a rotary milling tool capable of finishing a milled surface to produce a smooth and glossy surface. A rotary milling tool in which a plurality of chip discharge grooves (2) are provided to the outer periphery of a tip part of a tool body (1), the plurality of chip discharge grooves (2) extending from the tool tip toward the tool base, and bottom blades (5, 6) are provided to an intersection ridge part at the intersection of a rake surface (3) of the chip discharge grooves (2) and a tip flank surface (4) of the tool body (1), each of the bottom blades (5, 6) being formed integrally with the tool body (1), wherein a convex edge (7) that is convex toward a tool-axis-direction tip is formed on at least one of the bottom blades (5, 6), and the convex edge (7) is formed by the connection of a plurality of linear edges that are substantially linear.

Various components of an electronic device housing and methods for their assembly are disclosed. The housing can be formed by assembling and connecting two or more different sections together. The sections of the housing may be coupled together using one or more coupling members. The coupling members may be formed using a two-shot molding process in which the first shot forms a structural portion of the coupling members, and the second shot forms cosmetic portions of the coupling members.

A method of manufacturing a recirculating ball nut for a ball screw drive, comprising a base body which includes at least one recirculating ball track, the method comprising the following manufacturing steps: manufacturing the base body by precision forging; and finishing the recirculating ball track by a cutting method subsequent to manufacturing the base body.

A method and related system and apparatus for refurbishing worn rail transit rails to a desired refurbished rail surface profile substantially similar to the surface profile of a newly-manufactured rail, comprising: depositing a first line of fill material along a lower-inside section to be refurbished; in N1 successive iterations thereafter, progressing circumferentially from the lower-inside section to be refurbished to an upper-outside section to be refurbished, depositing an n+1.sup.th line of fill material adjacent an n.sup.th line of fill material wherein the n.sup.th line of fill material substantially provides a flow barrier against the n+1.sup.th line of fill material flowing past the n.sup.th line of fill material.

A finishing tool of an end milling cutter can comprise: a chip-removing milling edge, which extends continuously with respect to the tool axis (A) over an axial length (L) on a circumferential surface (U), which is rotationally symmetrical about the tool axis, and removes workpiece chips from the workpiece surface at a radial chip-removing engagement depth (T to Tmax), and at least one non-cutting pressing ridge, which extends continuously axially with respect to the tool axis (A) over an axial length (L) on a circumferential surface which is rotationally symmetrical about the tool axis, is arranged following an associated milling edge by a pitch angle, and presses over its entire axial length (L), during the milling movement, at a radial non-cutting engagement depth (T or R.sub.SR.sub.D) with respect to the tool axis into the workpiece surface machined by the associated milling edge, and smooths said workpiece surface.

Large diameter edges formed in arc shapes having curvature radii larger than a ball radius are provided. This allows improving surface roughness of a machined surface by cutting of a planar surface with the respective large diameter edges compared with cutting of a planar surface with a ball end cutting edge formed in an arc shape having a single curvature radius. Further, since the respective large diameter edges are formed in the arc shape, compared with cutting of a curved surface with linear cutting edges, surface roughness of a machined surface can be improved by cutting a curved surface with the respective large diameter edges. Accordingly, a pick feed during the cutting of the planar surface and the curved surface with the respective large diameter edges can be increased, and therefore machining efficiency in the cutting of both of the planar surface and the curved surface can be improved.

Various components of an electronic device housing and methods for their assembly are disclosed. The housing can be formed by assembling and connecting two or more different sections together. The sections of the housing may be coupled together using one or more coupling members. The coupling members may be formed using a two-shot molding process in which the first shot forms a structural portion of the coupling members, and the second shot forms cosmetic portions of the coupling members.

An apparatus for machining a workpiece has a spindle actuable to rotate about an axis, with a flycutter wheel mounted to the spindle. At least one cutting tool is coupled to the flycutter wheel and disposed to score a workpiece during rotation of the flycutter wheel. A translation mechanism is disposed to urge the workpiece into the path of the at least one cutting tool. A compressed gas delivery system is actuable to force a flow of gas through the spindle and through one or more conduits formed within the flycutter wheel to the at least one cutting tool.

Saw blades and methods of machining saw blade tooth profiles of saw blades. The saw blades include a blade body and a plurality of teeth defined by the blade body. Each tooth includes a tooth back, a tooth tip, a tooth face, and a tooth gullet. In at least one tooth, a relief region extends toward the tooth back and separates the tooth face from the tooth gullet. The methods include supporting the saw blade with a blade support structure and advancing the saw blade with a blade advance structure. The methods also include dry-machining a finished tooth profile in a working portion of the saw blade in a single pass. The dry-machining includes dry-machining with an end mill by operatively translating the end mill relative to the saw blade and within a plane that is at least substantially perpendicular to an end mill rotational axis of the end mill.