GB2497117B - Drill with multiple flutes of different lengths - Google Patents

Drill with multiple flutes of different lengths

Info

Publication number
GB2497117B
GB2497117B GB201120685A GB201120685A GB2497117B GB 2497117 B GB2497117 B GB 2497117B GB 201120685 A GB201120685 A GB 201120685A GB 201120685 A GB201120685 A GB 201120685A GB 2497117 B GB2497117 B GB 2497117B
Authority
GB
United Kingdom
Prior art keywords
flute
drill
flutes
length
projection
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 - Fee Related
Application number
GB201120685A
Other versions
GB201120685D0 (en
GB2497117A (en
Inventor
Chin-Sung Lin
Yi-Lung Lee
Tsair-Rong Chen
Chau-Shing Wang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NAT CHANGHUA UNIVERSITY OF EDUCATION Department OF ELECTRICAL ENGINEERING
Tera Autotech Corp
Original Assignee
NAT CHANGHUA UNIVERSITY OF EDUCATION Department OF ELECTRICAL ENGINEERING
Tera Autotech Corp
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 NAT CHANGHUA UNIVERSITY OF EDUCATION Department OF ELECTRICAL ENGINEERING, Tera Autotech Corp filed Critical NAT CHANGHUA UNIVERSITY OF EDUCATION Department OF ELECTRICAL ENGINEERING
Priority to GB201120685A priority Critical patent/GB2497117B/en
Publication of GB201120685D0 publication Critical patent/GB201120685D0/en
Publication of GB2497117A publication Critical patent/GB2497117A/en
Application granted granted Critical
Publication of GB2497117B publication Critical patent/GB2497117B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B23B51/02—Twist drills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/28—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools
    • B23P15/32—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools twist-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
    • B23B2251/40—Flutes, i.e. chip conveying grooves
    • B23B2251/404—Flutes, i.e. chip conveying grooves with decreasing depth in a direction towards the shank from the tool tip
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2251/00—Details of tools for drilling machines
    • B23B2251/40—Flutes, i.e. chip conveying grooves
    • B23B2251/406—Flutes, i.e. chip conveying grooves of special form not otherwise provided for

Abstract

The drill 100 includes a drilling section 20 with a front end 20a, a rear end 20b and a central axis C. The front end has a first, second, third and fourth face and a drilling blade. The drilling section includes a first, second and third flutes (30, 32, 34, Figure 5) of different lengths. The first and second flutes spirally extend on the drilling section, separately. A length L1 of a projection of the first flute is greater than a length L2 of a projection of the second flute. A cutting blade is formed between the first flute and the first face. The third flute extends on the drilling section from the front end and connects with the second flute. A length L3 of a projection of the third flute is shorter than that (L2) of the second flute. An edge blade is formed between the third flute and the third face and extends along the first flute. A method of making a drill includes rotating a metallic rod and cutting the rod over three different feeding distances to form three flutes of different length.
GB201120685A 2011-12-01 2011-12-01 Drill with multiple flutes of different lengths Expired - Fee Related GB2497117B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB201120685A GB2497117B (en) 2011-12-01 2011-12-01 Drill with multiple flutes of different lengths

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB201120685A GB2497117B (en) 2011-12-01 2011-12-01 Drill with multiple flutes of different lengths

Publications (3)

Publication Number Publication Date
GB201120685D0 GB201120685D0 (en) 2012-01-11
GB2497117A GB2497117A (en) 2013-06-05
GB2497117B true GB2497117B (en) 2013-11-20

Family

ID=45509010

Family Applications (1)

Application Number Title Priority Date Filing Date
GB201120685A Expired - Fee Related GB2497117B (en) 2011-12-01 2011-12-01 Drill with multiple flutes of different lengths

Country Status (1)

Country Link
GB (1) GB2497117B (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101780553A (en) * 2009-01-15 2010-07-21 株式会社钨钛合金 Drill and its grinding method
JP2010162643A (en) * 2009-01-15 2010-07-29 Tungaloy Corp Drill and grinding method of the drill
JP2010162645A (en) * 2009-01-15 2010-07-29 Tungaloy Corp Drill

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101780553A (en) * 2009-01-15 2010-07-21 株式会社钨钛合金 Drill and its grinding method
JP2010162643A (en) * 2009-01-15 2010-07-29 Tungaloy Corp Drill and grinding method of the drill
JP2010162645A (en) * 2009-01-15 2010-07-29 Tungaloy Corp Drill

Also Published As

Publication number Publication date
GB201120685D0 (en) 2012-01-11
GB2497117A (en) 2013-06-05

Similar Documents

Publication Publication Date Title
AU2013202909B2 (en) Screw
ATE427177T1 (en) DEEP HOLE DRILL
GB201302356D0 (en) Pick tool and method of using same
EP2239075A3 (en) Solid step drill
WO2010147715A3 (en) Twist drill with negative axial rake transition between the lip and the secondary cutting edge
WO2011097109A3 (en) Drill bit and method for manufacturing
GB201321071D0 (en) Rotary cutting tool having PCD cutting tip and cooling channels
TW200618902A (en) High speed metal drill bit
MY168458A (en) Method and system for abandoning a borehole
WO2014118591A8 (en) Instrument for boring dental root canals
RU2014104102A (en) SPIRAL DRILL AND METHOD OF DRILLING OF COMPOSITE MATERIALS, APPLICATION OF DRILL, METHODS OF ITS GRINDING AND MANUFACTURE
SE0800927L (en) Drill rod, drill bit and drill tool
WO2008078696A1 (en) Throw-away drill and tip arrangement method for the drill
MX2012000586A (en) Drill.
CN203236064U (en) Reamer for machining sandwich structure of titanium alloy and aluminum alloy
MX2014007950A (en) Downhole cutting tool.
MY191972A (en) Drill
MX341860B (en) Drill.
WO2012171643A3 (en) Two-centre rotary boring bit and method for deepening an existing well
PL403877A1 (en) Float to the aircraft
WO2012126128A3 (en) Endodontic instrument for drilling root canals
MY161015A (en) Downhole cutting tool having center beveled mill blade
MY186308A (en) Clad hardfacing application on downhole cutting tools
GB2497117B (en) Drill with multiple flutes of different lengths
GB2492928A (en) 'O' flute multipurpose bit

Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20191201