A rotary cutting tool for slotting and a cutting insert replaceably mounted to such a rotary cutting tool. The cutting insert is mounted to an insert pocket of a tool body of the rotary cutting tool and is pressed by an elastic pressure portion provided in the tool body. The cutting insert has an upper surface, a lower surface and four peripheral side surfaces. The top and lower surfaces have an inclined surface pressed by the elastic pressure portion. When the cutting insert is mounted to the insert pocket, the inclined surface of the upper surface is pressed by the elastic pressure portion. The inclined surface is inclined with respect to a cross section of the cutting insert such that the lower surface and two peripheral side surfaces of the cutting insert are contacted with the insert pocket by pressure of the elastic pressure portion.

A cutter holding assembly has a holder, a cutter, and a tightening positioning assembly. The holder has a first positioning recess. The cutter is connected to the holder and has a second positioning recess. The tightening positioning assembly has a positioning block, two tightening elements, and an adjusting element. The positioning block is mounted in the first positioning recess of the holder and the second positioning recess of the cutter. The tightening elements are mounted in two opposite sides of the positioning block. The adjusting element is mounted in the positioning block at a position between the two tightening elements. The adjusting element has a conical abutting surface for pushing the tightening elements to move opposite to each other to abut the opposite side surfaces of one of the first and the second positioning recesses while axially moving. The cutter can be firmly connected to the holder.

A tool body and at least one cassette for a milling tool. The tool body includes at least two identical insert seats, each insert seat being configured to support a cutting insert arranged to be mounted therein. At least one side contact surface is provided in each insert seat for supporting a bottom support surface and at least one side support surface of the cutting insert. The cassette has a peripheral side surface including at least one side support surface and at least one insert seat configured to support a cutting insert. The at least one side support surface and a bottom support surface of the cassette are configured to be supported by the at least one contact surface of any one of the insert seats of the tool body, the cassette being configured to be detachably mounted in any one of the identical insert seats of the tool body.

A cutter holding assembly has a holder, a cutter, and a tightening positioning assembly. The holder has a first positioning recess. The cutter is connected to the holder and has a second positioning recess. The tightening positioning assembly has a positioning block, two tightening elements, and an adjusting element. The positioning block is mounted in the first positioning recess of the holder and the second positioning recess of the cutter. The tightening elements are mounted in two opposite sides of the positioning block. The adjusting element is mounted in the positioning block at a position between the two tightening elements. The adjusting element has a conical abutting surface for pushing the tightening elements to move opposite to each other to abut the opposite side surfaces of one of the first and the second positioning recesses while axially moving. The cutter can be firmly connected to the holder.

A method includes positioning a cylindrical tool having one or more rows of blades within a cylindrical bore having a surface, forming annular grooves and peaks into the surface with the grooving blades when the swaging blades are in the retracted position, and translating the swaging blades from the retracted position to the extended position to deform the peaks. The one or more rows of blades includes fixed grooving blades and translatable swaging blades having retracted and extended positions.

A surface roughening tool includes a cylindrical body and at least one grooving blade outwardly radially projecting from the body and configured to form grooves and peaks into a surface. The surface roughening tool also includes at least one swaging blade outwardly radially projecting from the body and configured to deform the peaks. The at least one swaging blade is aligned with the at least one grooving blade along a circumference of the body.

A method for controlling flow localization in machining process is disclosed. By application of a constraint of sufficient level in the deformation zone and modifying the surface boundary conditions, suppression of unsteady flow and flow instabilities is achieved. The method enhances machined component quality by ensuring a uniform deformation state on the machined surface. Machined components are produced by ensuing uniform deformation by adopting constrained-cutting process for suppressing the instabilities and unsteady flow through a pre-determined location of the constraint of the constrained machining process relative to the machining tool.

A method includes positioning a cylindrical tool having one or more rows of blades within a cylindrical bore having a surface, forming annular grooves and peaks into the surface with the grooving blades when the swaging blades are in the retracted position, and translating the swaging blades from the retracted position to the extended position to deform the peaks. The one or more rows of blades includes fixed grooving blades and translatable swaging blades having retracted and extended positions.

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.

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.