Rotary end cutting tool

A method to produce an improved rotary end cutting tool with a basic description being a cylindrically-long body, divisional-portioned, containing a unique fixed-version insert cutting-unit means, disposing two distinct ends comprising:

• a first end-portion containing
• a shank-end means, for accommodating attachment to a rotary power tool means, for rotational power around a longitudinal axial-center line therein and through a barrel-portion being the major-portion comparing:
• a plurally-striated body resulting from a predetermined, plural, symmetrically-arranged, longitudinal, machining-method means performed to the barrel-portion to provide the improvements comprising:
• a plural-number of a purposed-flute means comprising:
• a predetermined chip-extracting volumetric-area provided from a first-purposed lead-face wall means containing a predetermined incurvate face-plane feature, facing a prescribed direction of rotation, and a second-purposed lag-face wall means containing a predetermined-composite of dissimilar correlated arc-lines, facing the first lead-face wall means, imposing their respective features in the body, and is arranged by
• a compounded-setup procedural means comprising:
• a first common bonding-point means, defined as a precise connecting-point location using a predetermined measurement from the center line, located on a second setup-plane means labeled true radius line, defined as an imaginary setup plane between a peripheral-point on an outside-edge of said body and said center line therein, that begins longitudinally at a predetermined-point near the shank-end means, and runs parallel with said center line in a helical pattern means using a predetermined helix-angle towards a forward conical second end;
• being set between said first lead-face wall means and the second lag-face wall means;
• which also regulates a predetermined flute-depth to the purposed-flute means further including a predetermined taper-angle means containing a predetermined angle-point near the forward conical second-end, which in turn, provides a unique taper-end residual core-area means, derived from the purposed-flute means, in said body further including:
• an equivalent number of fashioned cutting planes, which is a forward extreme end-point of said body, confined between the plural said flutes that further disposes a margin-area between the peripheral-edge of said body and a inner-edge-line of each cutting plane thereon that terminate and adjoin at a forward extreme-end of said axial-center line being an axis-point in said conical second-end containing a predetermined radial-angle being set from a right-angle of said center line, and radially employed to said end of said body further including:
• a typical-volumetric radial-arc groove means comprising:
• a predetermined number, width, depth, and a calculated spacing means being symmetrically arranged on each said cutting plane by using a predetermined radial step-distance means from said axis-point and is methodically fixed in each said cutting plane by an appropriate-method means, accordingly, providing each said cutting plane containing the grooves therein to be unique from the other said cutting plane containing said grooves therein;
• and organizing an individual-tracking means to avoid merging a fractional path-area of said groove therein each said cutting plane with any path-area from any said grooves therein any other said cutting plane thereof;
• when rotated in the designed direction around the axis-point of said conical second-end of said body further including:
• a chisel-point system means comprising:
• an aggressive cutting-edge to a forward-portion of the inner-edge-line of each said cutting plane than commonly adjoin through said axis-point, and being provided by a sequential predetermined back-angle plane means defined as a descending-planate machining-method means started on a rear portion-area of a preceding said cutting plane near said axis-point, and being positioned to infringe the forward-portion of said inner-edge-line on a following said cutting plane, and machined off to the end of the preceding said cutting plane using a predetermined-angle towards said shank-end and in a predetermined-angle direction towards a near central-point of a flute-void in an adjoining said flute set between said cutting planes in said body further including:
• a predetermined peripheral surface-area of the plural-striated said body located between said flutes therein involving a surface-area from a tangent-edge of said lag-face wall means in a preceding said flute to a predetermined margin-line set parallel and from a tangent-edge of side lead-face wall means of a forward adjacent said flute, being provided by a conforming longitudinal machine-method means using a predetermined-depth thereof, resulting the remaining peripheral contact surface-area displaying a full diameter of said body further including:
• a unique fixed insert cutting-unit embodiment means comprising:
• a conformity with said plural term, and a predetermined near-duplicating of said conical second-end containing the axis-point now being a center of the fixed insert cutting-unit that replicates and replaces a predetermined portional-means of said lead-face wall means, said lag-face wall means, said cutting plane, said residual core-area means, said peripheral-edge of said body, all of said incurvate cutting-edge and said multiple groove means therein, and further including:
• a predetermined dihedral-angled thrust-face wall means on a predetermined rear-portion of the embodiment of said fixed insert cutting-unit located on an opposite-side of each said lead-face wall means thereon, when viewed from said conical second-end, that forms a directional-lock when assembled with
• a conforming insert-holding receiver means being provided in said body, by an appropriate-method means, to near envelop said fixed insert cutting-unit after being assembled in the inset-holding receiver in said body, and being permanently attached by a thermal-fusion method means using one of a verity of metal-alloy means suitable for such attachment thereof;
• with said cutting plane on said fixed insert cutting-unit having a predetermined height-advantage above a remaining-portion of said cutting plane on said body further including:
• a required conversion to a insert-holding body being that said fixed insert cutting-unit has a superior influence to all cutting-features due to the height-advantage over said replicated and replaced-portions of said body thereby converting to a unique, integrally strong, and constant length insert-holding body providing only attachment, length, rotary direction and torque when assembled and permanently attached with said unique fixed insert cutting-unit;
• and employed as a rotary end cutting tool

A method to produce an improved rotary end cutting tool with a basic description being a cylindrically-long body, divisional portioned, disposing two distinct ends, and a unique removable-version insert cutting-unit means, comprising:

• a first end-portion containing
• a shank-end means, for accommodating attachment to a rotary power tool means, for rotational power around a longitudinal axial-center line therein and through a barrel-portion being the major-portion comprising:
• a plurally-striated body resulting from a predetermined, plural, symmetrically-arranged, longitudinal, machining-method means performed to the barrel-portion to provide the improvements comprising:
• a plural-number of a purposed-flute means comprising:
• a predetermined chip-extracting volumetric-area provided from a first-purposed lead-face wall means containing a predetermined incurvate face-plane feature, facing a prescribed direction of rotation, and a second-purposed lag-face wall means containing a predetermined-composite of dissimilar correlated arc-lines, facing the first lead-face wall means, imposing their respective features in the body, and is arranged by
• a compounded-setup procedural means comprising:
• a first common bonding-point means, defined as a precise connecting-point location using a predetermined measurement from the center line, located on a second setup-plane means labeled true radius line, defined as an imaginary setup plane between a peripheral-point on an outside-edge of said body and said center line therein, that begins longitudinally at a predetermined-point near the shank-end means, and runs parallel with said center line in a helical pattern means using a predetermined helix-angle towards a forward conical second end;
• being set between said first lead-face wall means and the second lag-face wall means;
• which also regulates a predetermined flute-depth to the purposed-flute means further including a predetermined taper-angle means containing a predetermined angle-point near the forward conical second-end, which in turn, provides a unique taper-end residual core-area means, derived from the purposed-flute means, in said body further including:
• an equivalent number of fashioned cutting planes, which is a forward extreme end-point of said body, confined between the plural said flutes that further disposes a margin-area between the peripheral-edge of said body and a inner-edge-line of each cutting plane thereon that terminate and adjoin at a forward extreme-end of said axial-center line being an axis-point in said conical second-end containing a predetermined radial-angle being set from a right-angle of said center line, and radially employed to said end of said body further including:
• a typical-volumetric radial-arc groove means comprising:
• a predetermined number, width, depth, and a calculated spacing means being symmetrically arranged on each said cutting plane by using a predetermined radial step-distance means from said axis-point and is methodically fixed in each said cutting plane by a method means;
• accordingly, providing each said cutting plane containing the grooves therein to be unique from the other said cutting plane containing said grooves therein;
• and organizing an individual-tracking means to avoid merging a fraction path-area of said grooves therein each said cutting plane with any path-area from any said grooves therein any other said cutting plane thereof;
• when rotated in the designed direction around and axis-point of said conical second-end of said body further including:
• a chisel-point system means comprising:
• an aggressive cutting-edge to a forward-portion of the inner-edge-line of each said cutting plane than commonly adjoin through said axis-point, and being provided by a sequential predetermined back-angle plane means defined as a descending-planate machining-method means started on a rear portion-area of a preceding said cutting plane near said axis-point, and being positioned to infringe the forward-portion of said inner-edge-line on a following said cutting plane, and machined off to the end of the preceding said cutting plane using a predetermined-angle towards said shank-end and in a predetermined-angle direction towards a near central-point of a flute-void in an adjoining said flute set between said cutting planes in said body further including:
• a predetermined peripheral surface-area of the plural-striated said body located between said flutes therein involving a surface-area from a tangent-edge of said lag-face wall means in a preceding said flute to a predetermined margin-line set parallel and from a tangent-edge of side lead-face wall means of a forward adjacent said flute, being provided by a conforming longitudinal machine-method means using a predetermined-depth thereof, resulting the remaining peripheral contact surface-area displaying a full diameter of said body further including:
• a unique removable-version insert cutting-unit embodiment means comprising:
• a conformity with said plural term, and a predetermined near-duplication of said conical second-end containing the axis-point now being a center of the removable insert cutting-unit that replicates and replaces a predetermined portional-means of said lead-face wall means, said lag-face wall means, said cutting plane, said residual core-area means, and said peripheral-edge of said body, all of said incurvate cutting-edge and said multiple groove means thereon, and further including:
• a predetermined dihedral-angled thrust-face wall means on a predetermined rear-portion of the embodiment of said removable insert cutting-unit located on an opposite-side of each said lead-face wall means thereon, when viewed from said conical second-end, that forms a directional-lock when assembled with
• a conforming insert-holding receiver means being provided in said body, by an appropriate-method means, to near envelope said removable insert cutting-unit when assembled therein;
• with said cutting plane on said removable insert cutting-unit having a predetermined height-advantage above a remaining-portion of said cutting plane on said body;
• with said removable insert cutting-unit embodiment further including:
• a center-locking dowel means being a unit extension from a bottom of said embodiment containing a predetermined diameter and length thereof in which, after said removable insert cutting-unit being assembled in the insert-holding receiver in said body, has a precise dimensional-contact with
• a predetermined near-conforming dowel receptacle-hole means being a removed-portion of said residual core-area means thereof, provided by an appropriate-method means, in said body further including:
• a predetermined threaded locking-device means containing a conforming threaded-channel means fixed at a predetermined location in a peripheral margin-area of said body and extends through a wall of the dowel receptacle-hole therein to provide a near mid-point location on the length of aid center-locking dowel, after being inserted therein at a near right-angle of said center line thereof;
• so when the locking-device means is bottomed against the location on said center-locking dowel exposed therein;
• said removable insert cutting-unit is solidly fixed after being assembled in said insert-holding receiver in said body further including:
• a predetermined clean-out/extraction device means containing an appropriately-sized access-channel means fixed at a predetermined location in a different peripheral margin-area of said body and extends through the wall of said dowel receptacle-hole therein, and being located to center on a bottom-end of said center-locking dowel at near a right-angle of said center line thereof, and being sealed by a predetermined recessed threaded-plug means containing a conforming threaded-port in the access-channel at near a surface of the peripheral margin-area location on said body further including:
• a required conversion to a insert-holding body being that said removable insert cutting-unit has a superior influence to all cutting features due to the height-advantage over said replicated and replaced-portions of said body thereby converting to a unique, integrally strong, and constant length insert-holding body providing only attachment, length, rotary direction and torque when assembled, and thereby attached with said unique removable insert cutting-unit;
• and employed as a rotary end cutting tool.