GB2212078A - Cutting tool with cutting fluid channel - Google Patents

Cutting tool with cutting fluid channel Download PDF

Info

Publication number
GB2212078A
GB2212078A GB8726682A GB8726682A GB2212078A GB 2212078 A GB2212078 A GB 2212078A GB 8726682 A GB8726682 A GB 8726682A GB 8726682 A GB8726682 A GB 8726682A GB 2212078 A GB2212078 A GB 2212078A
Authority
GB
United Kingdom
Prior art keywords
tool
cutting
groove
cutting edge
cutting fluid
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
Application number
GB8726682A
Other versions
GB2212078B (en
GB8726682D0 (en
Inventor
Richard Benson
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.)
Stellram Ltd
Original Assignee
Stellram Ltd
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 Stellram Ltd filed Critical Stellram Ltd
Priority to GB8726682A priority Critical patent/GB2212078B/en
Publication of GB8726682D0 publication Critical patent/GB8726682D0/en
Publication of GB2212078A publication Critical patent/GB2212078A/en
Application granted granted Critical
Publication of GB2212078B publication Critical patent/GB2212078B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
    • B23B27/10—Cutting tools with special provision for cooling

Abstract

The tool is formed with the channel extending along its length for delivering cutting fluid to the cutting edge 13 at least part of which channel is constituted by a groove 14 formed in the external surface of the tool and extending lengthwise of the tool. The groove 14 tapers at the cutting edge end 15. <IMAGE>

Description

CUTTING TOOL This invention relates to cutting tools.
Many machine tools now marketed are able to deliver cutting fluids used as coolants and lubricants to the back of the or each cutting tool, for example through the turret of a lathe or through the spindle of a milling machine. The cutting fluid is intended to be delivered to a position as near as possible to the cutting edge and to be directed across the cutting edge i.e. parallel to the line of cutting. This is conventionally achieved by drilling a hole along the length of the cutting tool to emerge near the cutting edge.
The cost of drilling such a hole is high particularly when, as in many cases, the tool is quite long. F#urthermore the hole reduces the strength of the cutting tool, and on some relatively slender tools the reduction in strength may be unacceptable.
We have now found surprisingly that we can achieve the effect of delivering the cutting fluid to the cutting edge by forming a flow groove for the cutting fluid along the external surface of the tool. The groove has proved efficient in use and is economical in the costs of producing the tool. Where the tool has an external shoulder or other external configuration which prevents the external groove from extending in substantially a straight line along the tool, a hole may be formed through the configuration to form a continuation of the groove.
According to this invention, therefore, there is provided a cutting tool having a cutting fluid flow channel extending lengthwise of the tool to a position adjacent the location of the cutting edge of the tool, at least part of which channel is constituted by a groove formed in the external surface of the tool and extending lengthwise of the tool.
One embodiment of the invention will now be described by way of example with reference to the accompanying drawings in which: Figures 1 and 2 are respectively side elevation and plan views of a cutting tool according to the invention, and Figures 3 and 4 are end views in the directions of the directions of the arrows 3 and Li respectively of Figure 1.
Referring to the drawings the cutting tool comprises an elongate straight bar 10 with flats 11 and 12 machined on its forward end portion and a cutting insert 13 located and secured in a recess in the flat 12. A straight groove 14 of arcuate cross-section extends from the rear end of the bar to a position 15 just rearward of the insert 13. The groove 14 is radially aligned with the insert and tapers in depth at its forward end. In use, the tool is secured in a tool holding recess in the turret of a lathe or in a bush, and cutting fluid is supplied by the lathe to the rear or side of the tool holding recessir bush. The cutting fluid flows along the groove and is directed across the cutting edge, i.e. at right angles to the direction of relative movement of the tool and workpiece.
A slight tapering of the cross-section of the groove may be provided along the length of the tool in some cases.

Claims (3)

1. A cutting tool having a cutting fluid flow channel extending lengthwise of the tool to a position adjacent the location of the cutting edge of the tool, at least part of which channel is constituted by a groove formed in the external surface of the tool and extending lengthwise of the tool.
2. A cutting tool as claimed in claim 1, wherein the groove tapers in depth adjacent the cutting edge in a manner to direct cutting fluid across the cutting edge of the tool.
3. A cutting tool substantially as hereinbefore described with reference to and as illustrated in the accompanying drawings.
GB8726682A 1987-11-13 1987-11-13 Cutting tool Expired - Fee Related GB2212078B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8726682A GB2212078B (en) 1987-11-13 1987-11-13 Cutting tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8726682A GB2212078B (en) 1987-11-13 1987-11-13 Cutting tool

Publications (3)

Publication Number Publication Date
GB8726682D0 GB8726682D0 (en) 1987-12-16
GB2212078A true GB2212078A (en) 1989-07-19
GB2212078B GB2212078B (en) 1991-10-16

Family

ID=10626948

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8726682A Expired - Fee Related GB2212078B (en) 1987-11-13 1987-11-13 Cutting tool

Country Status (1)

Country Link
GB (1) GB2212078B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5378091A (en) * 1992-06-17 1995-01-03 Makino Milling Machine Co., Ltd. Method and apparatus for machining a workpiece
US5439327A (en) * 1991-09-27 1995-08-08 Iscar Ltd. Metal cutting tool
US6045300A (en) * 1997-06-05 2000-04-04 Antoun; Gregory S. Tool holder with integral coolant passage and replaceable nozzle
US7293942B2 (en) * 2002-09-06 2007-11-13 Prototype Productions, Inc. Tool apparatus

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB261651A (en) * 1926-07-01 1926-11-25 Thomas Alexander Petrie Improvements in or relating to twist drills
GB599469A (en) * 1943-09-30 1948-03-12 Rudolf William Andreasson Improvements in drilling devices
GB766351A (en) * 1953-05-25 1957-01-23 John Roscoe Willingham Deep hole drill
GB1217317A (en) * 1967-08-07 1970-12-31 Archdale James & Co Ltd Gun reaming tool
GB1391399A (en) * 1972-04-10 1975-04-23 Sandco Ltd Cutting tool
GB2029288A (en) * 1978-09-01 1980-03-19 Deutsch Fastener Corp Tapered hole cutter

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB261651A (en) * 1926-07-01 1926-11-25 Thomas Alexander Petrie Improvements in or relating to twist drills
GB599469A (en) * 1943-09-30 1948-03-12 Rudolf William Andreasson Improvements in drilling devices
GB766351A (en) * 1953-05-25 1957-01-23 John Roscoe Willingham Deep hole drill
GB1217317A (en) * 1967-08-07 1970-12-31 Archdale James & Co Ltd Gun reaming tool
GB1391399A (en) * 1972-04-10 1975-04-23 Sandco Ltd Cutting tool
GB2029288A (en) * 1978-09-01 1980-03-19 Deutsch Fastener Corp Tapered hole cutter

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5439327A (en) * 1991-09-27 1995-08-08 Iscar Ltd. Metal cutting tool
US5378091A (en) * 1992-06-17 1995-01-03 Makino Milling Machine Co., Ltd. Method and apparatus for machining a workpiece
US6045300A (en) * 1997-06-05 2000-04-04 Antoun; Gregory S. Tool holder with integral coolant passage and replaceable nozzle
US7293942B2 (en) * 2002-09-06 2007-11-13 Prototype Productions, Inc. Tool apparatus

Also Published As

Publication number Publication date
GB2212078B (en) 1991-10-16
GB8726682D0 (en) 1987-12-16

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Legal Events

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

Effective date: 20061113