| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 21 | Thread milling tool | US10170857 | 2002-06-13 | US07959381B2 | 2011-06-14 | Richard D. Kienzle |
| A thread milling tool includes a proximal shank portion and a distal cutting portion. The cutting portion includes at least one thread milling tooth and at least one flute oriented helically, or spirally, about a central rotational axis of the tool. The cutting portion may be configured to form internal or external threads in a workpiece as the cutting portion moves relative to the workpiece. The teeth of the thread milling tool have a negative taper angle or back taper to offset deflection of the tool during milling operations. | ||||||
| 22 | Threading tap for cutting threads in blind holes and methods of its manufacture | US11476732 | 2006-06-29 | US07275898B2 | 2007-10-02 | Giovanna Malagnino; Roberto Troilo |
| A threading tap for cutting threads in blind holes includes an elongated body with a central axis, the body having at a rear end a connector portion, and having at a front end a threading portion. The threading portion is provided with at least one helical thread-cutting structure and interconnected flank portions defining at least one helical flute which interrupts the helical thread cutting structure. The flank portions present exposed surfaces that are steam tempered. The rest of the tap is coated by PVD. | ||||||
| 23 | Threading tap for cutting threads in blind holes and methods of its manufacture | US11476732 | 2006-06-29 | US20070014643A1 | 2007-01-18 | Giovanna Malagnino; Roberto Troilo |
| A threading tap for cutting threads in blind holes includes an elongated body with a central axis, the body having at a rear end a connector portion, and having at a front end a threading portion. The threading portion is provided with at least one helical thread-cutting structure and interconnected flank portions defining at least one helical flute which interrupts the helical thread cutting structure. The flank portions present exposed surfaces that are steam tempered. The rest of the tap is coated by PVD. | ||||||
| 24 | Tap | US751750 | 1991-08-29 | US5222847A | 1993-06-29 | Nobuo Hiyama; Yoshiharu Kato |
| A tap having a main body having a crest, a heel, and an outer circumference is disclosed. The tap main body has a male screw part at the crest side. At this male screw part, a plurality of grooves opening to the crest and the outer circumference of tap main body is formed. A tap main body has a cutting edge at each ridge part defined by a wall of said plurality of grooves and an outer circumference of a male screw part. These cutting edges each have a crest part and a heel part. The crest part of at least one cutting edge has an axial rake angle which differs from an axial rake angle of the crest part of another cutting edge. | ||||||
| 25 | Fluted tap | US308050 | 1981-10-02 | US4462727A | 1984-07-31 | Fritz Marburger |
| A fluted screw tap has a plurality of thread lands each with a pair of outwardly facing flanks. Each flank of a pair has a different asymmetric relief ground flank surface extending in a spiral form along the length of the thread land. Each thread land has a corner resting against the cut thread. Each of the flank surfaces in a pair has a different relief grinding angle extending along the threaded flank and the angle approaches the zero value at the end of the thread land where the corner resting against the cut thread is located. | ||||||
| 26 | Apparatus for working metal | US29150963 | 1963-06-28 | US3214774A | 1965-11-02 | GULLAND FRANK M |
| 27 | Taps, dies, and the like | US49456321 | 1921-08-23 | US1542893A | 1925-06-23 | PAUL KREUTZBERGER |
| 28 | SPIRAL FLUTE TAP WITH CONTINUOUSLY INCREASING HELIX ANGLE | US15609222 | 2017-05-31 | US20180345394A1 | 2018-12-06 | Yan Yan; Stephen Michael George |
| A spiral flute tap includes a body having an axial forward end and an axial rearward end. The body has a cylindrical shank portion adjacent the axial rearward end, a threaded fluted portion adjacent the axial forward end, a non-threaded fluted portion between the cylindrical shank portion and the threaded fluted portion, and a central, longitudinal axis. The spiral flute tap further includes a plurality of helical flutes formed at a helix angle, HA, with respect to the central, longitudinal axis of the tap that continuously increases in magnitude in the threaded fluted portion. In other words, the lead of the plurality of helical flutes continuously decreases in magnitude in a rearward direction for a predetermined distance. In one example, the helix angle, HA, varies at a rate of between 0.5 degrees/mm to 4.0 degrees/mm. A method of making the spiral flute tap is also disclosed. | ||||||
| 29 | Thread-cutting tap | US14785742 | 2013-05-24 | US09737944B2 | 2017-08-22 | Fuminari Koide; Katsuto Kawada; Takayuki Nakajima |
| A thread-cutting tap includes: a thread portion having an external thread, and including a chamfered portion and a complete thread portion that is axially adjacent to the chamfered portion; a flute extending from an axially distal end of the tap toward an axially proximal end of the tap; a rake face defined by one of widthwise opposite end portions of the flute; and a cutting edge defined by one of widthwise opposite edges of the flute, so as to be adjacent to the rake face and extend along the flute. The cutting edge is provided with a protrusion portion at least in a radially outer end portion of the chamfered portion, such that the protrusion portion protrudes from the rake face forwardly in the rotation direction and extends along the cutting edge. | ||||||
| 30 | Tool for machining a workpiece | US11852867 | 2007-09-10 | US08272817B2 | 2012-09-25 | Helmut Glimpel; Dietmar Hechtle |
| The invention relates to a tool for machining a workpiece, which tool is rotatable about a tool axis, having a tool shank and a tool head, which tool head comprises at least one land, at least one spiral point assigned to the land and at least one flute assigned to the land, wherein the flute has a left-hand helix and the spiral point is skewed to the left, or wherein the flute has a right-hand helix and the spiral point is skewed to the right. | ||||||
| 31 | THREAD MILLING CUTTER | US12734371 | 2007-10-29 | US20100260568A1 | 2010-10-14 | Jiro Osawa |
| As shown in a development view of FIG. 2, spiral flutes 16a and 16c have a lead angle α different from a lead angle β of spiral flutes 16b and 16d adjacently placed circumferentially to allow the lead angle β of cutting edges 20a and 20c, formed along the spiral flutes 16a and 16c, respectively, to be different from the lead angle α of cutting edges 20b and 20d adjacently placed circumferentially. This causes the cutting edges 20a to 20d to have intervals that axially vary in series such that the cutting edges 20a to 20d have unequal intervals. This results in irregular increase or decrease in milling resistance encountered during milling of a thread, thereby suppressing the occurrence of chatter vibration due to resonance with a capability of milling the thread with excellent milling precision under various milling conditions. | ||||||
| 32 | Thread mill having flute twisting in direction opposite to rotating direction | US11384349 | 2006-03-21 | US07377732B2 | 2008-05-27 | Haruyasu Andoh; Takayuki Nakajima |
| A thread mill that is to be moved along a helical interpolation path while being rotated about an axis of the thread mill in a rotating direction, for forming a thread in a circumferential surface of a workpiece. The thread mill includes a cylindrical main body having (a) at least one spiral flute formed in an outer circumferential surface of the cylindrical main body, and (b) at least one cutting edge each provided by a rear-side one of widthwise opposite edges, as viewed in the rotating direction, of a corresponding one of the at least one spiral flute. Each of the at least one spiral flute extends in a direction opposite to the rotating direction as viewed in a direction away from a proximal end of the cylindrical main body toward a distal end of the cylindrical main body. Also disclosed is a method of forming the thread by using the thread mill. | ||||||
| 33 | Spiral flute tap | US11582806 | 2006-10-18 | US20080095588A1 | 2008-04-24 | Willard E. Henderer; Stephen M. George; Steven R. Burns; Sadayuki Akaki |
| A cutting tool that includes an elongate body that has a forward end and a rearward end. The elongate body has a fluted portion that beginning near and extends in a rearward direction from the forward end. The fluted portion has a flute that defines a cutting edge. The flute presents a concave cutting face wherein the concave cutting face is defined by a first radius. The flute further presents a concave core surface adjacent to the concave cutting face wherein the concave core surface is defined by a second radius. The flute presents a convex heel surface adjacent to the concave core surface wherein the convex heel surface is defined by a fourth radius. | ||||||
| 34 | Threading tap for cutting threads in blind holes and methods of its manufacture | US10765847 | 2004-01-29 | US07241088B2 | 2007-07-10 | Giovanna Malagnino; Roberto Troilo |
| A threading tap for cutting threads in blind holes includes an elongated body with a central axis, the body having at a rear end a connector portion, and having at a front end a threading portion. The threading portion is provided with at least one helical thread-cutting structure and interconnected flank portions defining at least one helical flute which interrupts the helical thread cutting structure. The flank portions present exposed surfaces that are steam tempered. The rest of the tap is coated by PVD. | ||||||
| 35 | Threading tap for cutting threads in blind holes and methods of its manufacture | US10765847 | 2004-01-29 | US20040247406A1 | 2004-12-09 | Giovanna Malagnino; Roberto Troilo |
| A threading tap for cutting threads in blind holes includes an elongated body with a central axis, the body having at a rear end a connector portion, and having at a front end a threading portion. The threading portion is provided with at least one helical thread-cutting structure and interconnected flank portions defining at least one helical flute which interrupts the helical thread cutting structure. The flank portions present exposed surfaces that are steam tempered. The rest of the tap is coated by PVD. | ||||||
| 36 | Thread milling tool | US10170857 | 2002-06-13 | US20030231934A1 | 2003-12-18 | Richard D. Kienzle |
| A thread milling tool includes a proximal shank portion and a distal cutting portion. The cutting portion includes at least one thread milling tooth and at least one flute oriented helically, or spirally, about a central rotational axis of the tool. The cutting portion may be configured to form internal or external threads in a workpiece as the cutting portion moves relative to the workpiece. The teeth of the thread milling tool have a negative taper angle or back taper to offset deflection of the tool during milling operations. | ||||||
| 37 | Thread milling tool having helical flutes | US09511037 | 2000-02-23 | US06345941B1 | 2002-02-12 | X. Daniel Fang; David J. Wills; Clarence E. Blackburn |
| A thread milling tool includes a proximal shank portion and a distal cutting portion. The cutting portion includes at least one thread milling tooth and at least one flute oriented helically, or spirally, about a rotational axis of the tool. The helix angle of the thread milling tool of at least 20°. The cutting portion may be configured to form internal or external threads in a workpiece as the cutting portion moves relative to the workpiece. | ||||||
| 38 | ねじ切削用タップ | JP2015518036 | 2013-05-24 | JP6028098B2 | 2016-11-16 | 小出 文也; 川田 克人; 中嶋 孝之 |
| 39 | スパイラルタップ | JP2014525586 | 2012-07-17 | JPWO2014013549A1 | 2016-06-23 | 孝之 中嶋 |
| ねじ切り加工時における良好な切削性を保証しつつねじ切り加工後の逆転引き抜き時における切り屑離れを良くし、工具寿命を向上させるスパイラルタップを提供する。ねじれ溝18内における少なくともスパイラルタップ10の食付き部22に相当する部分に、そのねじれ溝18の裏刃30に沿って凹状に形成されてその裏刃30のすくい角を正とする副溝28が設けられたものであることから、必要十分なチップルームを確保しつつ、ねじれ溝18における裏刃30のすくい角を大きくとることが可能となる。すなわち、ねじ切り加工時における良好な切削性を保証しつつねじ切り加工後の逆転引き抜き時における切り屑離れを良くし、工具寿命を向上させるスパイラルタップ10を提供することができる。 | ||||||
| 40 | スパイラルタップ | JP2014525586 | 2012-07-17 | JP5816368B2 | 2015-11-18 | 中嶋 孝之 |
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