CA2512347A1 - Removable tap chasers and tap systems including the same - Google Patents
Removable tap chasers and tap systems including the same Download PDFInfo
- Publication number
- CA2512347A1 CA2512347A1 CA002512347A CA2512347A CA2512347A1 CA 2512347 A1 CA2512347 A1 CA 2512347A1 CA 002512347 A CA002512347 A CA 002512347A CA 2512347 A CA2512347 A CA 2512347A CA 2512347 A1 CA2512347 A1 CA 2512347A1
- Authority
- CA
- Canada
- Prior art keywords
- tap
- chaser
- head
- thread
- collapsible
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
- B23G5/00—Thread-cutting tools; Die-heads
- B23G5/08—Thread-cutting tools; Die-heads with means for adjustment
- B23G5/14—Tapping-heads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
- B23G5/00—Thread-cutting tools; Die-heads
- B23G5/02—Thread-cutting tools; Die-heads without means for adjustment
- B23G5/06—Taps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
- B23G5/00—Thread-cutting tools; Die-heads
- B23G5/08—Thread-cutting tools; Die-heads with means for adjustment
- B23G5/14—Tapping-heads
- B23G5/16—Tapping-heads self-releasing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
- B23G2200/00—Details of threading tools
- B23G2200/10—Threading tools comprising cutting inserts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
- B23G2210/00—Details of threads produced
- B23G2210/04—Internal threads
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T408/00—Cutting by use of rotating axially moving tool
- Y10T408/03—Processes
Abstract
The present disclosure provides a removable tap chaser for tapping an internal thread in a hole in a workpiece. The tap chaser consists of at least one carbide material and is adapted to be removably mounted on a tap system such as, for example, one of a collapsible tap system and a non-collapsible tap system.
Claims (16)
1. A removable tap chaser for tapping an internal thread in a hole in a workpiece, wherein the tap chaser consists of at least one carbide material.
2. The tap chaser of claim 1, wherein the tap chaser is adapted to be removably mounted on one of collapsible tap system and a non-collapsible tap system.
3. The tap chaser of claim 1, wherein said carbide material is a tungsten-based carbide.
4. The tap chaser of claim 1, wherein the tap chaser includes from 3 to 64 substantially identical thread teeth and from 0 to 10 thread teeth that are at least one of tapered and truncated to include at least one chamfer angle.
5. The tap chaser of claim 4, wherein each said substantially identical thread tooth comprises a front flank and a back flank that are one of symmetric and asymmetric to an axis of the thread tooth.
6. The tap chaser of claim 4, wherein at least one of said thread teeth having a chamfer angle is a single chamfer thread tooth having a chamfer angle of from 0° to 60°.
7. The tap chaser of claim 4, wherein at least one of said thread teeth having a chamfer angle is a double chamfer thread tooth having a first chamfer angle of from 0°
to 60° and a second chamfer angle of from 1° to 75°.
to 60° and a second chamfer angle of from 1° to 75°.
8. The tap chaser of claim 1, wherein the tap chaser is one of a standard-type tap chaser and an overhang-type tap chaser.
9. The tap chaser of claim 1, wherein the tap chaser is adapted to be removably mounted on a tap head of one of a collapsible tap system and a non-collapsible tap system to produce internal thread forms meeting at least one standard selected from the group consisting of American Petroleum Institute (API), National Taper Pipe Thread (NPT), American Standard Straight Pipe for Mechanical Joints (NPSM), American Standard Straight Pipe for Couplings (NPSC), American Standard Straight Pipe (NPS), British Standard Parallel Pipe (BSPP), British Standard Tapered Pipe (BSTP), ACME, Stub ACME, Modified ACME, Unified (UN), and ISO (Metric) standards.
10. The tap chaser of claim 1, wherein the tap chaser is coated with at least one coating material.
11. The tap chaser of claim 10, wherein said coating material is at least one material selected from the group consisting of a metal carbide, a metal nitride, a metal silicide and a metal oxide of a metal selected from groups IIIA, IVB, VB, and VIB of the periodic table.
12. The tap chaser of claim 11, wherein said coating has a total thickness of 1 to 24 microns.
13. The tap chaser of claim 11, wherein said coating material is at least one material selected from the group consisting of titanium nitride, titanium carbonitride, titanium aluminum nitride, titanium aluminum nitride plus carbon, aluminum titanium nitride, aluminum titanium nitride plus carbon, titanium aluminum nitride plus tungsten carbide/carbon, aluminum titanium nitride plus tungsten carbide/carbon, aluminum oxide, titanium diboride, tungsten carbide carbon, chromium nitride, and aluminum chromium nitride.
14. A tap system adapted to tap an internal thread in a hole in a workpiece in a single pass, the tap system comprising a tap head and at least one removable tap chaser consisting of a carbide material, and wherein the tap chaser is removably attached to the tap head and, when worn or damaged, may be removed from the tap head and replaced or restored to useful condition and re-installed on the tap head.
15. The tap system of claim 14, wherein the tap system is selected from the group consisting of a collapsible tap system and a non-collapsible tap system
16. A method for tapping an internal thread in a hole in a workpiece, the method comprising machining the workpiece with a tap system comprising a tap head and at least one removable tap chaser consisting of a carbide material, wherein the tap chaser is removably attached to the tap head and, when worn or damaged, may be removed from the tap head and replaced or restored to useful condition and re-installed on the tap head.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/903,198 US20060024140A1 (en) | 2004-07-30 | 2004-07-30 | Removable tap chasers and tap systems including the same |
US10/903,198 | 2004-07-30 |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2512347A1 true CA2512347A1 (en) | 2006-01-30 |
CA2512347C CA2512347C (en) | 2012-12-18 |
Family
ID=35732387
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA2512347A Expired - Fee Related CA2512347C (en) | 2004-07-30 | 2005-07-15 | Removable tap chasers and tap systems including the same |
Country Status (5)
Country | Link |
---|---|
US (1) | US20060024140A1 (en) |
CN (1) | CN1745949B (en) |
CA (1) | CA2512347C (en) |
HK (1) | HK1086520A1 (en) |
MX (1) | MXPA05007403A (en) |
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CN103464796B (en) * | 2013-09-06 | 2016-03-30 | 成都工具研究所有限公司 | Complicated shaping comb tooth cutter |
CN105537847A (en) * | 2015-12-18 | 2016-05-04 | 中广核研究院有限公司 | Thread combing device for large-caliber internal threads |
US10596648B2 (en) * | 2017-05-08 | 2020-03-24 | Snap-On Incorporated | Internal thread chase |
CN107096966B (en) * | 2017-06-13 | 2023-03-28 | 东莞市井田精密五金工具有限公司 | Fast-assembling efficient cutting screw tap and manufacturing method thereof |
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CN109277617A (en) * | 2018-11-12 | 2019-01-29 | 何挺 | A kind of multifunctional assembled cutter |
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-
2004
- 2004-07-30 US US10/903,198 patent/US20060024140A1/en not_active Abandoned
-
2005
- 2005-07-08 MX MXPA05007403A patent/MXPA05007403A/en active IP Right Grant
- 2005-07-15 CA CA2512347A patent/CA2512347C/en not_active Expired - Fee Related
- 2005-08-01 CN CN2005100878676A patent/CN1745949B/en not_active Expired - Fee Related
-
2006
- 2006-06-07 HK HK06106477.3A patent/HK1086520A1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
CN1745949A (en) | 2006-03-15 |
CN1745949B (en) | 2013-03-27 |
US20060024140A1 (en) | 2006-02-02 |
CA2512347C (en) | 2012-12-18 |
HK1086520A1 (en) | 2006-09-22 |
MXPA05007403A (en) | 2006-02-01 |
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