A remanufactured pot broaching tool includes an elongated bar with a cutting side and a bottom side spaced part from the cutting side. A milled shim is cool laser bonded to the bottom side of the elongated bar. The milled shim has a thickness between 0.0625 inches and 0.500 inches and a flatness tolerance within +0/0.0002 inches. A tolerance of a height dimension of the remanufactured pot broaching tool between an outer surface of a set of teeth on the cutting side and the outer elongated surface of the milled shim cool laser welded to the bottom side of the elongated bar is +0/0.0002 inches.

A helical broach which eliminates the need for a fixing means for fixing a workpiece during gear machining is provided. The helical broach includes: a plurality of cutting edges; a spiral flute formed between adjacent cutting edges to extend in a spiral manner with a predetermined helix angle with respect to an axial direction of the helical broach; and a gullet formed between adjacent cutting edges to extend with a predetermined helix angle with respect to a circumferential direction of the helical broach. In the helical broach, the expression: 0.5tan /tan(+)0.7 is satisfied, wherein is the helix angle of the spiral flute, and (90) is the helix angle of the gullet with reference to a central axis of the helical broach. An internal gear machining method using the helical broach is also provided.

A helical broach which eliminates the need for a fixing means for fixing a workpiece during gear machining is provided. The helical broach includes: a plurality of cutting edges; a spiral flute formed between adjacent cutting edges to extend in a spiral manner with a predetermined helix angle with respect to an axial direction of the helical broach; and a gullet formed between adjacent cutting edges to extend with a predetermined helix angle with respect to a circumferential direction of the helical broach. In the helical broach, the expression: 0.5tan /tan(+)0.7 is satisfied, wherein is the helix angle of the spiral flute, and (90) is the helix angle of the gullet with reference to a central axis of the helical broach. An internal gear machining method using the helical broach is also provided.

A tool configuration 91 for producing an improved locking system of a floor panel 1 and a method incorporating such tool configuration. The tool configuration 91x, 91y, is a non-rotating tool configuration profiling certain surfaces of the joint edge of the floor panel, resulting in that the tolerances can be kept on a low level.

A tool configuration 91 for producing an improved locking system of a floor panel 1 and a method incorporating such tool configuration. The tool configuration 91x, 91y, is a non-rotating tool configuration profiling certain surfaces of the joint edge of the floor panel, resulting in that the tolerances can be kept on a low level.

A tool configuration for producing an improved locking system of a floor panel and a method incorporating such tool configuration. The tool configuration is a non-rotating tool configuration profiling certain surfaces of the joint edge of the floor panel, resulting in that the tolerances can be kept on a low level.

A tool configuration for producing an improved locking system of a floor panel and a method incorporating such tool configuration. The tool configuration is a non-rotating tool configuration profiling certain surfaces of the joint edge of the floor panel, resulting in that the tolerances can be kept on a low level.

A helical broach which eliminates the need for a fixing means for fixing a workpiece during gear machining is provided. The helical broach includes: a plurality of cutting edges; a spiral flute formed between adjacent cutting edges to extend in a spiral manner with a predetermined helix angle with respect to an axial direction of the helical broach; and a gullet formed between adjacent cutting edges to extend with a predetermined helix angle with respect to a circumferential direction of the helical broach. In the helical broach, the expression: 0.5tan /tan(+)0.7 is satisfied, wherein is the helix angle of the spiral flute, and (90) is the helix angle of the gullet with reference to a central axis of the helical broach. An internal gear machining method using the helical broach is also provided.

A helical broach which eliminates the need for a fixing means for fixing a workpiece during gear machining is provided. The helical broach includes: a plurality of cutting edges; a spiral flute formed between adjacent cutting edges to extend in a spiral manner with a predetermined helix angle with respect to an axial direction of the helical broach; and a gullet formed between adjacent cutting edges to extend with a predetermined helix angle with respect to a circumferential direction of the helical broach. In the helical broach, the expression: 0.5tan /tan(+)0.7 is satisfied, wherein is the helix angle of the spiral flute, and (90) is the helix angle of the gullet with reference to a central axis of the helical broach. An internal gear machining method using the helical broach is also provided.

The shell of this helical broach (1) is formed by stacking a plurality of wafer shells (20.sub.W(1)-20.sub.W(N)) in the axial direction, and is obtained by forming on the wafer shells (20.sub.W(1)-20.sub.W(N)) finishing blades (30.sub.W(1)-30.sub.W(N)) corresponding to teeth grooves on a piece to be cut (W) and forming the finishing blades (30.sub.W(1)-30.sub.W(N)) such that the blade width gradually increases with each of the aforementioned wafer shells (20.sub.W(1)-20.sub.W(N)) from the leading end of the cutting direction toward the trailing end of the cutting direction.