US3751177A - Guide pad mounting on a drill bit - Google Patents
Guide pad mounting on a drill bit Download PDFInfo
- Publication number
- US3751177A US3751177A US00091296A US3751177DA US3751177A US 3751177 A US3751177 A US 3751177A US 00091296 A US00091296 A US 00091296A US 3751177D A US3751177D A US 3751177DA US 3751177 A US3751177 A US 3751177A
- Authority
- US
- United States
- Prior art keywords
- drill
- guide pad
- axis
- sliding bearing
- pad
- 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D77/00—Reaming tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/02—Connections between shanks and removable cutting heads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/56—Guiding pads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/06—Drills with lubricating or cooling equipment
- B23B51/063—Deep hole drills, e.g. ejector drills
-
- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S408/00—Cutting by use of rotating axially moving tool
- Y10S408/705—Drilling deep holes
-
- 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
- Y10T408/89—Tool or Tool with support
- Y10T408/892—Tool or Tool with support with work-engaging structure detachable from cutting edge
-
- 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
- Y10T408/89—Tool or Tool with support
- Y10T408/905—Having stepped cutting edges
- Y10T408/906—Axially spaced
-
- 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
- Y10T408/89—Tool or Tool with support
- Y10T408/907—Tool or Tool with support including detailed shank
Definitions
- shape of the drill may change, for instance by elastic deformation or by diameter wear, in such a way that there is established only a partial contact between the pads and the wall of the hole. This results in an increased specific surface pressure from the pads causing undue friction.
- the invention provides an improvement in this regard by means of a guide pad which is mounted on a pivot, so that it can rock and adapt itself to the surface of the hole, thereby securing a full surface contact.
- FIG. 1 a side view of a drill according to the invention.
- FIG. 2 an end view of the same drill.
- FIG. 3 a guide pad on the same drill.
- FIG. 4 a cross section on the line 4-4 in FIG. 3.
- FIG. 5 a side view of another embodiment of the invention.
- FIG. 6 an end view of the drill in FIG. 5.
- FIG. 7 a side view of a third embodiment of the invention.
- FIG. 8 an end view of the drill in FIG. 7.
- the drill shown in FIGS. 1 and 2 is a metal drill having a number of cutting inserts 11 clamped in supports 13 by clamps 12 of which all except one have been omitted in FIG. 2.
- the supports 13 are attached to the drill in a suitable way, e.g., by screws or by brazmg.
- two guide pads 20 For supporting and guiding the drill in the hole are provided two guide pads 20, suitably of sintered carbide.
- the pads are mounted on a pivot so that they can rock around both a longitudinal and a transverse axis.
- the pivoting around a longitudinal axis is obtained by means of a support 21 with a cylindrical sliding surface 22, which rests on a matching surface 23 in a depression in the drill.
- the periphery surface 25 of the support 21 is approximately flush with the periphery surface of the drill.
- the support is fastened with a screw 26 (FIG. 1) and a resilient washer 27 permitting rocking of the support.
- the pivot axis 24 lies outside the pad in order that when the drill rotates the friction on the pad will urge the leading edge 28 of the pad away from the edge of the hole. This lessens the friction and facilitates the entering of the lubricant between the pad and the wall.
- the pivoting on a transverse axis is obtained by a support 30 having a cylindrical surface 31 sliding along a matching surface 32 in the support 21.
- the pad is held by a tubular pin 34 within a bore through both supports 21 and 30.
- the rocking requires bending of the pin. This is made possible by an annular space 35 extending along a part of the pin 34.
- the pivot mounting around two perpendicular axii provided by the above described two cylindrical sliding joints may be obtained by a single spherical joint.
- FIGS. 5 and 6 show a modified embodiment of the invention in which the pad unit 40 is symmetrical. It carries two sintered carbide pads 41 on each side of a fastening screw 42, under the head of which there is a helical spring 43 permitting the rocking around a longitudinal axis.
- This embodiment comprises no rocking on a transverse axis.
- the advantage of the symmetrical pad is that the pad can be turned half a turn when it has been worn out on the side having the greatest pressure.
- FIGS. 7 and 8 show another symmetrical pad unit 50 having four pad inserts 51 on a drill for counterboring (reaming), i.e. for enlarging the internal diameter of holes.
- reaming counterboring
- the specific advantage is that the great area of the pads makes the'tool suitable for reaming the inner diameter of tubes with a thin wall that would be damaged by the pressure from smaller guide pads.
- Drill for drilling in metal having a guide pad adapted to slide with frictional contact along the wall of the drill hole, in which the guide pad is pivotally rockable on at least one axis having the same general direction as the sliding surface of the guide pad and situated at a fixed distance from the drill axis.
- Drill as defined in claim 1 having a guide pad on a longitudinal pivot axis, in which said axis lies outside the periphery surface of the pad.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
- Drilling Tools (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Earth Drilling (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE16082/69A SE347450B (es) | 1969-11-24 | 1969-11-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3751177A true US3751177A (en) | 1973-08-07 |
Family
ID=20301706
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US00091296A Expired - Lifetime US3751177A (en) | 1969-11-24 | 1970-11-20 | Guide pad mounting on a drill bit |
Country Status (7)
Country | Link |
---|---|
US (1) | US3751177A (es) |
JP (1) | JPS4946837B1 (es) |
DE (1) | DE2057512C3 (es) |
ES (1) | ES188230Y (es) |
FR (1) | FR2072230A5 (es) |
GB (1) | GB1323607A (es) |
SE (1) | SE347450B (es) |
Cited By (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2416157A1 (de) * | 1974-04-03 | 1975-10-23 | Heller Geb | Bohrwerkzeug |
DE2600225A1 (de) * | 1975-01-20 | 1976-07-22 | Sandvik Ab | Bohrwerkzeug |
US4108567A (en) * | 1975-01-20 | 1978-08-22 | Sandvik Aktiebolag | Boring tool |
US4130371A (en) * | 1976-07-14 | 1978-12-19 | Sandvik Aktiebolag | Cutting insert and rotary cutter tool |
US4133399A (en) * | 1975-12-18 | 1979-01-09 | Wilhelm Hegenscheidt Gmbh | Boring device |
US4218162A (en) * | 1977-11-02 | 1980-08-19 | Elizabeth Jean Hillier | Drilling bit |
US4573381A (en) * | 1984-02-24 | 1986-03-04 | Top Tech, Inc. | Boring device |
US4596498A (en) * | 1982-07-17 | 1986-06-24 | MAPAL Fabrik fur Prazisions werkzeuge Dr. Kress KG | Single bit reamer with improved guide members |
US5042596A (en) * | 1989-02-21 | 1991-08-27 | Amoco Corporation | Imbalance compensated drill bit |
US5131478A (en) * | 1989-02-21 | 1992-07-21 | Brett J Ford | Low friction subterranean drill bit and related methods |
US5328304A (en) * | 1992-01-31 | 1994-07-12 | Mapal Fabrik Fur Prazisionswerkzeuge Dr. Kress Kg | Reamer |
US5402856A (en) * | 1993-12-21 | 1995-04-04 | Amoco Corporation | Anti-whirl underreamer |
US5697737A (en) * | 1994-09-12 | 1997-12-16 | Sandvik Ab | Support pad for drill |
US5758997A (en) * | 1996-08-07 | 1998-06-02 | Mealey; Michael | Self-centering indexable drill |
US5921727A (en) * | 1998-01-20 | 1999-07-13 | Cogsdill Tool Products, Inc. | Reamer with friction resistant layer and method for forming same |
US6602028B1 (en) * | 1999-06-21 | 2003-08-05 | Sandvik Aktiebolag | Support pad for a deep hole drill |
US20040265080A1 (en) * | 2003-05-20 | 2004-12-30 | Sandvik Ab | Edge-carrying drill, method for the manufacture of the drill, and drilling tool comprising such a drill |
US20050025594A1 (en) * | 2003-05-20 | 2005-02-03 | Sandvik Ab | Edge-carrying drill body having an internal chip-removal channel |
US20050244237A1 (en) * | 2002-12-19 | 2005-11-03 | Joerg Guehring | Deep hole drill |
JP2006239827A (ja) * | 2005-03-04 | 2006-09-14 | Yunitakku Kk | 深孔切削用ドリルヘッド |
US20090297285A1 (en) * | 2006-04-07 | 2009-12-03 | Unitac, Inc. | Deep hole drilling machine |
US20100158623A1 (en) * | 2008-12-19 | 2010-06-24 | Sandvik Intellectual Property Ab | Drill body as well as support pad therefor |
WO2010096005A1 (en) * | 2009-02-20 | 2010-08-26 | Seco Tools Ab | Guide arrangement for a cutting tool and cutting tool including a guide arrangement |
US20120051862A1 (en) * | 2010-08-25 | 2012-03-01 | Woodruff Douglas J | Stabilization of boring tools |
US20120070243A1 (en) * | 2009-05-29 | 2012-03-22 | Tungaloy Corporation | Reamer |
US20120134759A1 (en) * | 2010-11-29 | 2012-05-31 | Kennametal Inc. | Rotating cutting tool and guide insert therefor |
US20130078045A1 (en) * | 2010-04-23 | 2013-03-28 | Hermann Randecker | Drill head for a deep hole drilling tool for bta deep hole drilling, and deep hole drilling tool |
WO2013182810A1 (fr) * | 2012-06-05 | 2013-12-12 | Snecma | Tete de calibrage pour le forage d'arbres |
US9114460B2 (en) | 2011-02-28 | 2015-08-25 | Tungaloy Corporation | Guide pad, cutting tool body and cutting tool |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50132795U (es) * | 1974-04-17 | 1975-10-31 | ||
JPS5119626A (ja) * | 1974-08-07 | 1976-02-17 | Yoshiaki Terauchi | Kanisekibunjogi |
SE411310B (sv) * | 1976-11-17 | 1979-12-17 | Sandvik Ab | Borr, foretredesvis med vendsker |
DE2750705A1 (de) * | 1977-11-12 | 1979-05-17 | Wezel & Co Biax Werkzeuge | Reibahle mit bohrstufe und stark ungleicher teilung der reibahlenschneiden |
DE3211136C2 (de) * | 1982-03-26 | 1984-01-12 | Fried. Krupp Gmbh, 4300 Essen | Walzenstirnfräser |
GB9002700D0 (en) * | 1990-02-07 | 1990-04-04 | H & B Quickgrind Limited | Improvements relating to cutting tools |
DE59408257D1 (de) * | 1993-12-16 | 1999-06-17 | Kennametal Hertel Ag | Führungselement für ein zerspanungswerkzeug |
SE509383C2 (sv) * | 1994-06-13 | 1999-01-18 | Sandvik Ab | Borrverktyg |
SE504339C2 (sv) * | 1994-06-13 | 1997-01-13 | Sandvik Ab | Borrverktyg |
JP6119065B2 (ja) * | 2012-08-01 | 2017-04-26 | 株式会社タンガロイ | ドリルヘッド |
DE102022108098A1 (de) | 2022-04-05 | 2023-10-05 | Gühring KG | Spanabhebendes Werkzeug mit einstellbarer Führungsleiste |
JP7180808B1 (ja) * | 2022-04-18 | 2022-11-30 | 株式会社タンガロイ | 穴加工用の切削工具とその切削インサート |
JP7180809B1 (ja) * | 2022-04-18 | 2022-11-30 | 株式会社タンガロイ | 穴加工用の切削工具 |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US874848A (en) * | 1907-03-15 | 1907-12-24 | J P Karns Tunneling Machine Co | Sink-shaft drill. |
US875664A (en) * | 1906-04-30 | 1907-12-31 | J P Karns Tunneling Machine Co | Tunneling-machine. |
AT66525B (de) * | 1913-10-28 | 1914-09-10 | Rekord Petroleum Ges Mit Besch | Selbsttätige Umsetzvorrichtung für Tiefbohrapparate. |
DE321935C (de) * | 1916-05-31 | 1920-06-15 | Berthold Monasch Dr Ing | Bohrverfahren fuer horizontale Erdbohrungen |
GB271839A (en) * | 1926-05-25 | 1928-03-29 | U S Tool Company | Improvements relating to the hydraulic rotary system of well drilling |
GB313802A (en) * | 1928-08-09 | 1929-06-20 | Albert Sidney Debose | Rotary well drilling apparatus |
US1745351A (en) * | 1928-10-01 | 1930-02-04 | George G Osborn | Drill-bit agitator |
US1866082A (en) * | 1927-08-10 | 1932-07-05 | Anthony E Carlson | Expansion drill bit |
US2151646A (en) * | 1938-06-28 | 1939-03-21 | Union Oil Co | Subsurface speed-up drilling mechanism |
US2647726A (en) * | 1950-06-30 | 1953-08-04 | Hallen Company Inc | Horizontal earth boring machine |
FR1221024A (fr) * | 1958-01-24 | 1960-05-30 | American Iron & Machine Works | Dispositif de pompage pour les puits |
-
1969
- 1969-11-24 SE SE16082/69A patent/SE347450B/xx unknown
-
1970
- 1970-11-20 US US00091296A patent/US3751177A/en not_active Expired - Lifetime
- 1970-11-21 JP JP45103185A patent/JPS4946837B1/ja active Pending
- 1970-11-23 FR FR7041934A patent/FR2072230A5/fr not_active Expired
- 1970-11-23 GB GB5557670A patent/GB1323607A/en not_active Expired
- 1970-11-23 DE DE2057512A patent/DE2057512C3/de not_active Expired
- 1970-11-23 ES ES1970188230U patent/ES188230Y/es not_active Expired
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US875664A (en) * | 1906-04-30 | 1907-12-31 | J P Karns Tunneling Machine Co | Tunneling-machine. |
US874848A (en) * | 1907-03-15 | 1907-12-24 | J P Karns Tunneling Machine Co | Sink-shaft drill. |
AT66525B (de) * | 1913-10-28 | 1914-09-10 | Rekord Petroleum Ges Mit Besch | Selbsttätige Umsetzvorrichtung für Tiefbohrapparate. |
DE321935C (de) * | 1916-05-31 | 1920-06-15 | Berthold Monasch Dr Ing | Bohrverfahren fuer horizontale Erdbohrungen |
GB271839A (en) * | 1926-05-25 | 1928-03-29 | U S Tool Company | Improvements relating to the hydraulic rotary system of well drilling |
US1866082A (en) * | 1927-08-10 | 1932-07-05 | Anthony E Carlson | Expansion drill bit |
GB313802A (en) * | 1928-08-09 | 1929-06-20 | Albert Sidney Debose | Rotary well drilling apparatus |
US1745351A (en) * | 1928-10-01 | 1930-02-04 | George G Osborn | Drill-bit agitator |
US2151646A (en) * | 1938-06-28 | 1939-03-21 | Union Oil Co | Subsurface speed-up drilling mechanism |
US2647726A (en) * | 1950-06-30 | 1953-08-04 | Hallen Company Inc | Horizontal earth boring machine |
FR1221024A (fr) * | 1958-01-24 | 1960-05-30 | American Iron & Machine Works | Dispositif de pompage pour les puits |
Cited By (43)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2416157A1 (de) * | 1974-04-03 | 1975-10-23 | Heller Geb | Bohrwerkzeug |
DE2600225A1 (de) * | 1975-01-20 | 1976-07-22 | Sandvik Ab | Bohrwerkzeug |
US4108567A (en) * | 1975-01-20 | 1978-08-22 | Sandvik Aktiebolag | Boring tool |
US4133399A (en) * | 1975-12-18 | 1979-01-09 | Wilhelm Hegenscheidt Gmbh | Boring device |
US4130371A (en) * | 1976-07-14 | 1978-12-19 | Sandvik Aktiebolag | Cutting insert and rotary cutter tool |
US4218162A (en) * | 1977-11-02 | 1980-08-19 | Elizabeth Jean Hillier | Drilling bit |
US4596498A (en) * | 1982-07-17 | 1986-06-24 | MAPAL Fabrik fur Prazisions werkzeuge Dr. Kress KG | Single bit reamer with improved guide members |
DE3226799C1 (de) * | 1982-07-17 | 1990-04-19 | Mapal Fabrik für Präzisionswerkzeuge Dr.Kress KG, 7080 Aalen | Einmesser-Reibahle |
US4573381A (en) * | 1984-02-24 | 1986-03-04 | Top Tech, Inc. | Boring device |
US5042596A (en) * | 1989-02-21 | 1991-08-27 | Amoco Corporation | Imbalance compensated drill bit |
US5131478A (en) * | 1989-02-21 | 1992-07-21 | Brett J Ford | Low friction subterranean drill bit and related methods |
US5328304A (en) * | 1992-01-31 | 1994-07-12 | Mapal Fabrik Fur Prazisionswerkzeuge Dr. Kress Kg | Reamer |
US5402856A (en) * | 1993-12-21 | 1995-04-04 | Amoco Corporation | Anti-whirl underreamer |
US5697737A (en) * | 1994-09-12 | 1997-12-16 | Sandvik Ab | Support pad for drill |
US5758997A (en) * | 1996-08-07 | 1998-06-02 | Mealey; Michael | Self-centering indexable drill |
US5921727A (en) * | 1998-01-20 | 1999-07-13 | Cogsdill Tool Products, Inc. | Reamer with friction resistant layer and method for forming same |
US6602028B1 (en) * | 1999-06-21 | 2003-08-05 | Sandvik Aktiebolag | Support pad for a deep hole drill |
US20050244237A1 (en) * | 2002-12-19 | 2005-11-03 | Joerg Guehring | Deep hole drill |
US20070110529A1 (en) * | 2002-12-19 | 2007-05-17 | Joerg Guehring | Deep hole drill |
US7296953B2 (en) | 2002-12-19 | 2007-11-20 | Joerg Guehring | Deep hole drill |
US20040265080A1 (en) * | 2003-05-20 | 2004-12-30 | Sandvik Ab | Edge-carrying drill, method for the manufacture of the drill, and drilling tool comprising such a drill |
US20050025594A1 (en) * | 2003-05-20 | 2005-02-03 | Sandvik Ab | Edge-carrying drill body having an internal chip-removal channel |
US7326009B2 (en) * | 2003-05-20 | 2008-02-05 | Sandvik Intellectual Property Ab | Edge-carrying drill body having an internal chip-removal channel |
US7320565B2 (en) * | 2003-05-20 | 2008-01-22 | Sandvik Intellectual Property Ab | Edge-carrying drill, method for the manufacture of the drill, and drilling tool comprising such a drill |
JP2006239827A (ja) * | 2005-03-04 | 2006-09-14 | Yunitakku Kk | 深孔切削用ドリルヘッド |
US20090297285A1 (en) * | 2006-04-07 | 2009-12-03 | Unitac, Inc. | Deep hole drilling machine |
US20100158623A1 (en) * | 2008-12-19 | 2010-06-24 | Sandvik Intellectual Property Ab | Drill body as well as support pad therefor |
US8696269B2 (en) * | 2008-12-19 | 2014-04-15 | Sandvik Intellectual Property Ab | Drill body as well as support pad therefor |
CN102325624A (zh) * | 2009-02-20 | 2012-01-18 | 山高刀具公司 | 用于切削刀具的引导装置和包含引导装置的切削刀具 |
EP2398619A1 (en) * | 2009-02-20 | 2011-12-28 | Seco Tools Ab | Guide arrangement for a cutting tool and cutting tool including a guide arrangement |
WO2010096005A1 (en) * | 2009-02-20 | 2010-08-26 | Seco Tools Ab | Guide arrangement for a cutting tool and cutting tool including a guide arrangement |
EP2398619A4 (en) * | 2009-02-20 | 2012-07-04 | Seco Tools Ab | GUIDE ASSEMBLY FOR A CUTTING TOOL AND CUTTING TOOL WITH A GUIDE APPROACH |
US8770896B2 (en) * | 2009-05-29 | 2014-07-08 | Tungaloy Corporation | Reamer |
US20120070243A1 (en) * | 2009-05-29 | 2012-03-22 | Tungaloy Corporation | Reamer |
US20130078045A1 (en) * | 2010-04-23 | 2013-03-28 | Hermann Randecker | Drill head for a deep hole drilling tool for bta deep hole drilling, and deep hole drilling tool |
US8511946B2 (en) * | 2010-08-25 | 2013-08-20 | Rotary Technologies Corporation | Stabilization of boring tools |
US20120051862A1 (en) * | 2010-08-25 | 2012-03-01 | Woodruff Douglas J | Stabilization of boring tools |
US20120134759A1 (en) * | 2010-11-29 | 2012-05-31 | Kennametal Inc. | Rotating cutting tool and guide insert therefor |
US8801343B2 (en) * | 2010-11-29 | 2014-08-12 | Kennametal Inc. | Rotating cutting tool and guide insert therefor |
US9114460B2 (en) | 2011-02-28 | 2015-08-25 | Tungaloy Corporation | Guide pad, cutting tool body and cutting tool |
CN103402677B (zh) * | 2011-02-28 | 2015-11-25 | 株式会社钨钛合金 | 导向块、切削工具主体以及切削工具 |
WO2013182810A1 (fr) * | 2012-06-05 | 2013-12-12 | Snecma | Tete de calibrage pour le forage d'arbres |
US9815130B2 (en) | 2012-06-05 | 2017-11-14 | Snecma | Calibration head for the drilling of shafts |
Also Published As
Publication number | Publication date |
---|---|
DE2057512B2 (de) | 1973-10-18 |
ES188230U (es) | 1974-01-16 |
GB1323607A (en) | 1973-07-18 |
SE347450B (es) | 1972-08-07 |
ES188230Y (es) | 1974-09-16 |
DE2057512C3 (de) | 1974-05-30 |
JPS4946837B1 (es) | 1974-12-12 |
FR2072230A5 (es) | 1971-09-24 |
DE2057512A1 (de) | 1971-06-09 |
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AS | Assignment |
Owner name: SANTRADE LTD., ALPENQUAI 12, CH-6002 LUCERNE, SWIT Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:SANDVIK STEEL OF COLORADO, INC., A CORP. OF CO;REEL/FRAME:004091/0836 Effective date: 19830125 |