Cutting tool systems including a tool holder and tangential cutting inserts are disclosed. The tangential cutting inserts have indexable cutting edges that may be sinusoidal-shaped and helical-shaped. The tangential cutting inserts have integrated fan and base portions. The tool holders comprise a plurality of insert pockets structured and arranged to receive the indexable tangential cutting inserts. The cutting tool systems provide cutting tools with effectively longer sinusoidal and helical cutting edges at their cutting rake faces and a strong support when seating in insert-receiving pockets on the tool holder.

A tool for hob peeling rotating workpieces having pre-machined teeth comprises a gear-wheel shaped main body and tooth-shaped cutting inserts (1.2) which at the end face in the region of the tip circle are disposed on the main body. Each cutting insert comprises at least one cutting tooth. The cutting tooth forms a cutting edge (6) which runs at least along one of the flanks of the cutting tooth, and a cutting face and a clearance face. The cutting face along the cutting edge is provided with a cutting face chamfer (7) which in relation to the cutting face (5.5) runs so as to be inclined by a chamfer angle. The chamfer angle varies along the cutting edge. Moreover, the cutting edge is rounded by a radius.

A milling tool is disclosed. The milling tool may include an elongated body having a longitudinal axis and a plurality of cutting inserts. The cutting inserts may each have a cutting edge and a cutting radius and be coupled to the body and spaced along the longitudinal axis. One or more of the plurality of cutting inserts may be adjustable (e.g., mechanically adjustable) between first and second cutting radii. A difference between the first and second cutting radii may be at least 10 m. The milling tool may include cutting inserts having a plurality of different cutting radii. The milling tool may be configured to have a length that spans an entire height of an engine bore. The cutting inserts having different radii may compensate for dimensional errors in an engine bore diameter that occur when milling a deep pocket.

A disposable drilling and milling cutter for use with an NC or CNC machine tool and configured to be fed in a spiral manner includes a shank, a chip removing groove at one of a plurality of offset positions at one end of the shank, a blade seat at a distal end of the chip removing groove, and a disposable blade locked to the blade seat. The disposable blade has a cutting edge at each of its upper and lower ends, and each cutting edge has an irregular height and a notch. The wavy structural design of the disposable blade enables the disposable drilling and milling cutter to drill and mill in a sectioned manner, to break the drilling/milling chips automatically, and to perform intermittent processing.

A rotary cutting tool has a plurality of circumferentially spaced grooves, each having a plurality of cutting inserts mounted. Each cutting insert has a wave-shaped major cutting edge, a corner cutting edge, and a minor cutting edge. The cutting inserts are arranged such that, the phases of the waves of the rotational trajectories formed by the cutting inserts that are adjacent to each other in a direction along the tool rotational axis coincide with each other in one groove. Also, the rotational trajectories of at least part of cutting edge portions of at least some cutting inserts are overlapped with each other in the direction of the tool rotational axis. Accordingly, even when the cutting edge portion is used as a major cutting edge and as an inner cutting edge, it is still possible to reduce cutting load and suppress breakage.

According to one aspect of this disclosure, a grooving tool is provided. The grooving tool has a body with a plurality of recesses. Plural inserts assembled into each of the recesses. The recesses include a cutting edge for forming grooves in an engine cylinder wall when rotated in one rotational direction. The insert also includes a peening surface extending in the opposite rotational direction from the cutting edge for deforming the upper edges of the grooves when rotated in an opposite rotational direction.

A cutting tool comprising a cutting tool holder and a cutting insert adapted to be mounted thereon. The tool holder comprises an insert seat defined by a base and at least one side wall extending from the base to define an insert seat space adapted to receive therein the insert. The seat comprises a support element extending into the insert seat from the base, and a fastening member engageable with the seat. The fastening member is displaceable with respect thereto between a mounting position adapted to allow the insert to be mounted onto the seat and a securing position adapted for securing the insert within the seat. The insert is formed with a securing cavity and when the insert is mounted onto the tool holder and is in the securing position, a portion of the support element and the fastening member is received within the cavity of the insert.

A milling cutter includes a milling drum having a body with a first end, a second end, an outer surface extending around a circumference of the body between the first and second ends, and a slot formed in the outer surface. The milling cutter also includes a cutting insert positioned at least partially within the slot and removably secured to the body. The cutting insert includes a cutting profile defined by rounded peaks and pointed valleys to cut a tooth form into a saw blade.

A spirally-fed drilling and milling cutter to be driven spirally in order to drill and mill includes a shank, a groove at one of a plurality of offset positions at one end of the shank, a blade at a bottom side of the groove, and a spiral flute on the periphery of the main body of the shank, wherein the spiral flute has a flute end connected with the groove. When the cutter is rotated at high speed and in high torsion, drilling/milling chips are pushed upward, along with a cutting liquid, through the spiral flute out of a hole being made. Thus, the heat generated by the cutting action is reduced, and the chips are efficiently discharged, allowing the cutting edges to stay sharp and the cutter to make deep holes.

A cutting tool system is designed to have a combined sinusoidal-shaped and helical-shaped cutting edge formed by an assembly of aligned common cutting inserts each having a sinusoidal and helical cutting edge.