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MX2014006988A - Broca escalonada. - Google Patents

Broca escalonada.

Info

Publication number
MX2014006988A
MX2014006988A MX2014006988A MX2014006988A MX2014006988A MX 2014006988 A MX2014006988 A MX 2014006988A MX 2014006988 A MX2014006988 A MX 2014006988A MX 2014006988 A MX2014006988 A MX 2014006988A MX 2014006988 A MX2014006988 A MX 2014006988A
Authority
MX
Mexico
Prior art keywords
cutting edge
longitudinal axis
rubbing surface
cutting
step drill
Prior art date
Application number
MX2014006988A
Other languages
English (en)
Inventor
Laverne R Durfee
Original Assignee
Irwin Ind Tool Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Irwin Ind Tool Co filed Critical Irwin Ind Tool Co
Publication of MX2014006988A publication Critical patent/MX2014006988A/es

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B23B51/009—Stepped drills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2251/00—Details of tools for drilling machines
    • B23B2251/28—Arrangement of teeth
    • B23B2251/282—Unequal spacing of cutting edges in the circumferential direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2251/00—Details of tools for drilling machines
    • B23B2251/70—Drills with vibration suppressing means
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling Tools (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Abstract

Una broca escalonada o de diámetro creciente tiene una cabeza de corte que define un eje longitudinal y que tiene una pluralidad de escalones que tienen diferentes diámetros efectivos. El primer y segundo bordes de corte son formados en la cabeza de corte. El primer borde de corte y el segundo borde de corte son colocados, de manera que la broca es asimétrica en un plano perpendicular al eje longitudinal con relación al plano que contiene el eje longitudinal. Una superficie de frotamiento es formada en cada escalón en donde la superficie de frotamiento se extiende aproximadamente el diámetro efectivo de este escalón de manera que el primer borde de corte, el segundo borde de corte y la superficie de frotamiento forma tres puntos de contacto con la pared lateral del agujero que está siendo cortado.
MX2014006988A 2013-06-14 2014-06-11 Broca escalonada. MX2014006988A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201361835068P 2013-06-14 2013-06-14
US14/299,163 US9687915B2 (en) 2013-06-14 2014-06-09 Step drill

Publications (1)

Publication Number Publication Date
MX2014006988A true MX2014006988A (es) 2015-03-04

Family

ID=52019360

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2014006988A MX2014006988A (es) 2013-06-14 2014-06-11 Broca escalonada.

Country Status (4)

Country Link
US (2) US9687915B2 (es)
CN (1) CN104227088B (es)
BR (1) BR102014014523A2 (es)
MX (1) MX2014006988A (es)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2579514B (en) * 2013-06-06 2020-12-16 Milwaukee Electric Tool Corp Step drill bit
US9687915B2 (en) * 2013-06-14 2017-06-27 Irwin Industrial Tool Company Step drill
US10058929B2 (en) * 2015-11-10 2018-08-28 Irwin Industrial Tool Company Step drill bit with variable helical flute
US11007583B2 (en) 2016-02-14 2021-05-18 Hongjia Wang Twist drill
US10506897B2 (en) 2016-03-04 2019-12-17 Shorefield Holdings, LLC Mixing assembly for mixing a product
US10486121B2 (en) 2016-03-04 2019-11-26 Shorefield Holdings, LLC Mixing assembly for mixing a product
US10927629B2 (en) 2016-12-27 2021-02-23 Halliburton Energy Services, Inc. Downhole machining tool
CN106922277B (zh) * 2017-03-06 2019-05-14 浙江省林业科学研究院 一种竹蔸破碎挖掘装置
USD822730S1 (en) * 2017-04-07 2018-07-10 Shorefield Holdings, LLC Mixing structure
US10245656B2 (en) 2017-07-27 2019-04-02 Greenlee Tools, Inc. Step bit
US10328500B2 (en) 2017-08-03 2019-06-25 Greenlee Tools, Inc. Cutting and deburring tool
US11273501B2 (en) 2018-04-26 2022-03-15 Milwaukee Electric Tool Corporation Step drill bit
USD980979S1 (en) * 2018-11-30 2023-03-14 Shukla Medical Nail extractor
CN110681893A (zh) * 2019-11-07 2020-01-14 丹阳市杰锐特种工具制造有限公司 一种宝塔钻
DE102019135404A1 (de) 2019-12-20 2021-06-24 Gühring KG Spiralbohrer mit einer stufenstrukturierten Schneidspitze
EP4097544A4 (en) * 2020-01-30 2024-05-15 Milwaukee Electric Tool Corporation AUTOMATIC STEP BIT DETECTION
US20230278113A1 (en) * 2020-07-23 2023-09-07 Milwaukee Electric Tool Corporation Step drill bit
US20220371105A1 (en) * 2021-05-19 2022-11-24 Black & Decker Inc. Step drill bits
EP4360784A1 (en) 2022-08-10 2024-05-01 Black & Decker, Inc. Step drill bit
AU2022475626A1 (en) * 2022-08-24 2025-03-20 Tec-Spiral Enterprises Tools Co., Ltd Step drill and method for drilling a workpiece by using a step drill
CN117655377A (zh) * 2022-08-24 2024-03-08 上海钰工工具有限公司 阶梯钻和利用阶梯钻对工件进行钻孔切削的方法
CN117773198B (zh) * 2024-02-18 2025-12-12 上海钰工工具有限公司 用于孔加工工具的钻削部和孔加工工具

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2334089A (en) * 1939-11-06 1943-11-09 Erik E Hallden Drill
US2897696A (en) * 1956-01-13 1959-08-04 Henry R Tisserant Sheet metal panel drill
US3758222A (en) * 1971-12-30 1973-09-11 H Oakes Drill bit
JPH0639617A (ja) * 1992-07-28 1994-02-15 Fuji Seiko Kk バニシングドリル
JP3587561B2 (ja) * 1994-08-08 2004-11-10 本田技研工業株式会社 段付リーマ
US5466100A (en) * 1994-10-24 1995-11-14 Alfa Manufacturing Industries, Inc. Multi-stepped power drill bit having handle chuck adaptor
US6890133B2 (en) 2002-10-18 2005-05-10 Irwin Industrial Tool Company Stepped drill bit having split tip
DE102006025294B4 (de) * 2006-05-31 2010-07-22 Kennametal Inc. Bohrwerkzeug
US8070397B2 (en) 2008-02-19 2011-12-06 Irwin Industrial Tool Company Self feed bit
US8070398B2 (en) 2008-02-19 2011-12-06 Irwin Industrial Tool Company Multi-blade self feed bit
BRPI0914199B1 (pt) * 2008-06-21 2021-03-09 MAPAL Fabrik für Präzisionswerkzeuge Dr. Kress KG broca
US20120195704A1 (en) * 2011-01-31 2012-08-02 White Christopher L Drill bit
US8764355B2 (en) 2011-02-15 2014-07-01 Irwin Industrial Tool Company Step drill bit
DE202011106232U1 (de) * 2011-10-04 2011-11-09 RUKO GmbH Präzisionswerkzeuge Mehrstufenbohrer mit unterschiedlichem Hinterschliff der Schneidkanten in den einzelnen Bohrstufen
US9687915B2 (en) * 2013-06-14 2017-06-27 Irwin Industrial Tool Company Step drill

Also Published As

Publication number Publication date
US20140369776A1 (en) 2014-12-18
US10328499B2 (en) 2019-06-25
BR102014014523A2 (pt) 2015-10-06
US9687915B2 (en) 2017-06-27
CN104227088A (zh) 2014-12-24
US20170259350A1 (en) 2017-09-14
CN104227088B (zh) 2018-04-24

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