KR20160136994A - Form tool for cutting a fitting joint - Google Patents

Form tool for cutting a fitting joint Download PDF

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Publication number
KR20160136994A
KR20160136994A KR1020150071442A KR20150071442A KR20160136994A KR 20160136994 A KR20160136994 A KR 20160136994A KR 1020150071442 A KR1020150071442 A KR 1020150071442A KR 20150071442 A KR20150071442 A KR 20150071442A KR 20160136994 A KR20160136994 A KR 20160136994A
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KR
South Korea
Prior art keywords
machining
processing
fitting joint
cutting
groove
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Application number
KR1020150071442A
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Korean (ko)
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KR101700796B1 (en
Inventor
이인수
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(주)성산툴스
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Priority to KR1020150071442A priority Critical patent/KR101700796B1/en
Publication of KR20160136994A publication Critical patent/KR20160136994A/en
Application granted granted Critical
Publication of KR101700796B1 publication Critical patent/KR101700796B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C5/00—Milling-cutters
    • B23C5/02—Milling-cutters characterised by the shape of the cutter
    • B23C5/12—Cutters specially designed for producing particular profiles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C5/00—Milling-cutters
    • B23C5/006—Details of the milling cutter body
    • 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
    • B23P15/001—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass valves or valve housings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C2210/00—Details of milling cutters
    • B23C2210/08—Side or top views of the cutting edge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C2210/00—Details of milling cutters
    • B23C2210/40—Flutes, i.e. chip conveying grooves

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)

Abstract

The present invention relates to a form tool for processing the inner circumference of a fitting joint. The form tool for processing the inner circumference of a fitting joint comprises: a shank unit gripped by a tool holder and forming a rear end thereof; and a cutting blade unit located in front of the shank unit and processing a mounting groove and a taper groove of the fitting joint all together, wherein the cutting blade unit has multiple discharge grooves formed to be concave to discharge a processing chip along the circumference. The cutting blade unit comprises: a connection end integrally connected to the shank; a first processing end formed in a taper structure inclined downward toward the front side and processing the inner circumference of a taper groove of the fitting joint in an allowance range, wherein the first processing end protrudes from the front side of the connection end; a second processing end extended from a front end of the first processing end to the front side and processing the inner circumference of the mounting groove of the fitting joint in the allowance range; and a third processing end protruding from the front surface of the second processing end to the front side and having a smaller diameter than the inner diameter of a moving hole, wherein the third processing end chamfers burr existing at a corner between the moving hole and the mounting groove with the front surface of the second processing end. The form tool for processing the inner circumference of a fitting joint can smoothly remove the burr at the each corner and can minimize a working process of processing the inner circumference of the fitting joint.

Description

[0001] FOOTING JOINTS [0002]

The present invention relates to a form tool, and more particularly, to a new tool for minimizing work processes for inner diameter machining of fitting joints and eliminating burrs at each corner. To a foam tool for bore diameter machining of a fitting joint.

In general, a fitting joint is a structure that connects two or more fluid pipes, through which fluid flows, to each other. In order to allow the fluid pipes to have various connection structures and to repair or repair each fluid pipe So that the fluid tube can be separated from the corresponding portion.

In the fitting joint, the fitting structure with respect to the fluid tube is also finely deformed according to the diameter or the characteristic structure of each fluid tube, but usually includes the body of the joint, the sleeve, and the coupling nut, As shown in Japanese Patent Application Laid-Open No. 10-0671079.

1, a flow hole through which a fluid flows is formed through the central portion of the body, and a mounting groove in which a fluid tube is received and a tapered tapered groove in which a sleeve is mounted A screw thread for threaded engagement with the engaging nut is formed on one circumferential surface of the end of the body of the joint, and at the other end (or the central side portion) of the body of the joint, And a nut portion for performing a fastening operation together with the nut is formed to protrude.

In particular, the inner diameter of the mounting groove is formed to be substantially the same as the diameter of the fluid tube, and the inner diameter of the flow hole is smaller than the inner diameter of the mounting groove. The tapered groove extends gradually from the end of the mounting groove As shown in FIG.

However, since the conventional joint body of a conventional fitting joint described above has to be sequentially subjected to a plurality of processes such as a centering operation, a drilling operation, an undershooting operation, a roughing boring operation, a finishing boring operation and a chamfering operation, There has been a problem in that it is necessary to provide a machine tool for each individual work in addition to a long time.

Particularly, although the taper groove formed in the body of the joint is subjected to precision machining in the finishing boring operation, in the case of such a taper groove, the angle and roughness are very important due to the fear of leakage of the fluid. However, And difficulty in processing the roughness with very high precision, which is different from each other according to the processing skill of the operator.

SUMMARY OF THE INVENTION The present invention has been made in order to solve various problems of the prior art described above, and it is an object of the present invention to provide a method and apparatus for minimizing burrs at each corner while minimizing a work process for inner diameter machining of a fitting joint And to provide a foam tool for bore-diameter machining of a fitting joint according to a new shape.

In order to achieve the above object, according to the present invention, there is provided a foam tool for bore size machining, wherein a fluid hole is formed at a central portion thereof, a mounting groove into which a fluid tube is received and a tapered groove, A shank portion which is gripped by a tool holder while forming a rear end; And a cutting edge portion which is positioned in front of the shank portion and integrally processes the mounting groove and the tapered groove of the fitting joint and in which a plurality of discharge grooves for recessing the machining chip are formed along the circumference, Wherein the cutting blade portion has a connecting end integrally connected to the shank portion and a first cutting edge portion protruding from the front surface of the connecting end and formed in a tapered structure inclined downwardly toward the front while processing the inner circumferential surface of the tapered groove of the fitting joint to a tolerance range, A second machining end extending forward from the tip end of the first machining end and machining the inner circumferential surface of the fitting groove of the fitting joint to a tolerance range and a second machining end protruding forward from the front surface of the second machining end, Is formed so as to have a smaller diameter than the front end of the second processing end, And a third machining end which faces the burr existing at the edge of the burr.

Here, the outer surface of the first machining end and the outer surface of the second machining end are formed so as to have a cutting surface and a plurality of clearance angle surfaces that are formed to be inclined sequentially from the cutting surface.

The third machining end is formed to be tapered so as to have a smaller diameter toward the tip end. The corner portion between the front surface of the second machining end and the third machining end protruding from the third machining end is rounded, And is provided as a cutting portion for chamfering the burr existing at the corner between the teeth.

The rear end portion of the first processing end forming the cutting blade portion is formed to be smaller than the diameter formed by the distal end of the connection end, and is formed to protrude from the front surface of the connection end. And a corner portion between the front end of the connecting end and the first machining end protruding from the connecting end is rounded and provided as a cutting portion for chamfering the burr formed at the outer end edge of the tapered groove .

Further, an oil hole is formed through the center of the shank portion and the cutting blade portion.

As described above, according to the present invention, the forming tool for bore diameter machining of the present invention is constructed so that the taper grooves and the mounting grooves can be collectively machined on the inner circumferential surface of the fitting joint in which the flow holes are formed, So that the manufacturing cost can be reduced and the working time can be shortened.

Further, since the taper grooves and the mounting grooves of the fitting joint are integrally formed by a single tool, eccentricity between the taper grooves and the mounting grooves can be prevented even though eccentricity with the flow holes can be achieved, The coupling between the fluid tube and the sleeve connected to the joint can be accurately performed, thereby eliminating the fear of fluid leakage.

Particularly, the fitting tool according to the present invention has a rounded edge portion between a front surface of a connecting end and a first machining end protruding therefrom, and a rounded corner portion constituting a connecting portion between the third machining end and the second machining end Since the corner portions of the inner circumferential surface of the fitting joint are chamfered at the time of forming the taper grooves and the mounting grooves, there is no need to perform a separate operation for removing burrs generated at the corresponding portions.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a cross-
2 is a perspective view illustrating a form tool for bore-diameter machining of a fitting joint according to an embodiment of the present invention.
3 is a front view showing a form tool for bore-diameter machining of a fitting joint according to an embodiment of the present invention.
4 is a side view for explaining a form tool for bore diameter machining of a fitting joint according to an embodiment of the present invention
5 is a sectional view for explaining the internal structure of a foam tool for bore diameter machining of a fitting joint according to an embodiment of the present invention
6, 7 and 10 are sectional views for explaining a processing procedure of a fitting joint using a foam tool for bore diameter machining of a fitting joint according to an embodiment of the present invention.
8 is an enlarged view of " A "
Fig. 9 is an enlarged view of " B &

Hereinafter, a preferred embodiment of a foam tool for bore diameter machining of a fitting joint of the present invention will be described with reference to Figs. 2 to 10 attached hereto.

Prior to the description of the embodiments, the fitting joint 10 to be processed by the forming tool for bore size machining of the present invention refers to a fitting joint 10 in which a flow hole 11 is formed through the central portion as shown in FIG. 1, And a tapered tapered groove 13 to which a sleeve (not shown) is mounted are sequentially formed from a portion where the flow hole 11 is formed, An example is the joint body of a joint.

FIG. 3 is a front view for explaining a form tool for bore diameter machining of a fitting joint according to an embodiment of the present invention, and FIG. 3 is a front view for explaining a form tool for bore diameter machining of a fitting joint according to an embodiment of the present invention, 4 is a side view for explaining a form tool for bore-diameter machining of a fitting joint according to an embodiment of the present invention.

As shown in these drawings, a fitting tool (hereinafter referred to as " tool ") for fitting joint according to an embodiment of the present invention includes a shank portion 100, which is gripped by a tool holder (not shown) And a cutting blade part 200 integrally formed at the tip of the shank part 100 and for machining a machining part. In particular, in the embodiment of the present invention, the cutting blade part 200 is inserted into the fitting joint The mounting groove 12 and the tapered groove 13 of the fitting joint 10 are integrally formed and the burr formed at each corner portion formed on the inner diameter (inner circumferential surface) of the fitting joint 10 can be removed And the like.

The cutting blade part 200 of each part of the tool will be described in more detail.

First, the cutting blade part 200 is formed of a cemented carbide. A plurality of discharge grooves 210 having a long structure in the longitudinal direction (axial direction) are formed around the cutting blade part 200.

At this time, the discharge groove 210 functions to form an edge for providing a plurality of blades to the cutting blade part 200, and also, when the cutting blade part 200 is machined on the inner circumference of the fitting joint 10 And also serves to guide the discharge of the processed chips, and is formed to have a twisted structure as shown in FIG.

Particularly, in the embodiment of the present invention, the cutting edge portion 200, the connecting end 220, the first machining end 230, the second machining end 240 and the third machining end 250, .

Here, the connecting end 220 is a portion that is integrated with the shank portion 100 and extends forward of the shank portion 100.

The connecting end 220 does not perform a substantial cutting process while forming the cutting edge portion 200.

Next, the first machining end 230 is a portion for machining the tapered groove 13 of the fitting joint 10 to a tolerance range.

The first processing end 230 protrudes from the front surface of the connection end 220 and is formed in a tapered downwardly inclined shape toward the front side. At this time, the inclination angle of the first processing end 230 is smaller than the taper angle Is formed in consideration of the inclination angle of the groove (13). That is, the inclination angle of the taper groove 13 is determined by the first machining end 230.

Particularly, the rear end portion of the first processing end 230 is formed to be smaller than the diameter formed by the distal end of the connection end 220, and has a stepped structure protruding from the front surface of the connection end 220, The front surface of the step 220 is inclined rearward toward the outer circumferential surface and the corner portion 231 between the front surface of the connection end 220 and the first processing end 230 projecting therefrom is rounded.

The structure of the edge portion 231 between the first processing end 230 and the connecting end 220 is such that the outer end edge of the tapered groove 13 in the inner peripheral surface of the fitting joint 10 And a burr formed in the end edge of the tapered groove 13 can be provided to the cutting portion to be cut along with the burr, so that the burr does not remain on the outer end edge of the tapered groove 13.

Next, the second machining end 240 is a portion for machining the mounting groove 12 in the inner peripheral surface of the fitting joint 10 to a tolerance range.

The second machining end 240 extends forward from the distal end of the first machining end 230 so that the length of the second machining end 240 is equal to the length of the mounting groove 12, And the length of the contact surface is taken into consideration. That is, the depth of the mounting groove 12 is determined by the second processing stage 240.

The outer surfaces of the first machining end 230 and the second machining end 240 are formed to have cutting surfaces 232 and 242 and a plurality of clearance angle surfaces 233, 234, 243, and 244 formed to be inclined sequentially from the cutting surfaces 232 and 242 . In other words, the first machining end 230 and the second machining end 240 are tilted in a multi-step structure, so that the surface roughness of the taper grooves 13 and the mounting grooves 12 can be adjusted. The machining of the inner circumferential surface of the fitting joint 10 can be performed collectively by a single operation with the tool according to the embodiment of the present invention.

Next, the third processing stage 250 is a portion provided for chamfering the burr present in the corner between the flow hole 11 and the mounting groove 12. [

That is, when the machining of the inner peripheral surface of the fitting joint 10 (the mounting groove and the tapered groove) is simultaneously performed using the first machining end 230 and the second machining end 240, Burrs must be generated at the corner between the flow hole 11 and the mounting groove 12 in the inner circumferential surface of the fitting joint 10 toward the rear end of the fitting joint 10, , It is necessary to perform additional work for removing the burrs by allowing the burrs at the corner portions to be collectively removed through the provision of the third processing stage 250 as in the embodiment of the present invention .

The third processing end 250 is formed in a stepped structure protruding forward from the front surface of the second processing end 240 and has a smaller diameter than the inner diameter of the flow hole 11, The corner portion 251 between the front surface of the second processing stage 240 and the third processing stage 250 protruding from the second processing stage 240 is rounded so that the corner portion 251 is formed in the flow hole 11 and the mounting groove 12 can be provided as a cutting portion for chamfering the burrs existing at the corners of the cutting edges.

That is, a rounded corner portion 251 forming a connecting portion between the third machining end 250 and the second machining end 240 functions as a substantial cutting edge while the flow hole 11 and the mounting groove 12 And the burrs existing at the corners of the burrs are chamfered.

Particularly, the outer circumferential surface of the third machining end 250 is formed to have an inclined structure whose outer diameter decreases toward the front, so that the rounded corner portion 251 can more accurately perform the role of the cutting edge.

The tool according to an embodiment of the present invention further shows that the oil hole 300 is formed through the center of the shank portion 100 and the cutting blade portion 200 among the respective portions of the tool. That is, the tool according to the embodiment of the present invention is inserted into the fitting joint 10 to perform machining on the inner circumferential surface of the fitting joint 10, and at the same time, the inner circumferential surface of the fitting joint 10, It is possible to supply the cutting oil through the oil hole 300 in consideration of the fact that there is almost no gap between the outer circumferential surfaces of the fitting joints 200 so that the cutting operation on the inner circumferential surface of the fitting joint 10 by the tool is smoothly performed .

Hereinafter, the process of machining the inner circumferential surface of the fitting joint 10 using the tool according to the embodiment of the present invention will be described in more detail.

First, the fitting joint 10 allows the flow hole 11 to be formed at the inner center thereof through a drilling operation. This is as shown in Fig. 6 attached hereto.

When the drilling operation is completed, the inner circumferential surface of one side (right side in the drawing) of the fitting joint 10 is machined by using the tool according to the embodiment of the present invention.

7, by inserting the cutting blade part 200 of the tool according to the embodiment of the present invention into the flow hole 11 from either one of the ends of the fitting joint 10, 200 are machined to the inner circumferential surface of the fitting joint 10.

7 to 9, when the inner circumferential surface of the fitting joint 10 using the tool is machined, the first machining end 230 of the tool is inserted into the tapered groove (not shown) of the fitting joint 10 13 to the tolerance range and the second machining end 240 to process the mounting groove 12 of the fitting joint 10 to the tolerance range.

In the process of machining the taper grooves 13 and the mounting grooves 12 by the first machining end 230 and the second machining end 240 described above, And the front end edge of the mounting groove 12 (the corner of the portion where the flow hole is communicated). In the case of the burr generated at the rear end edge portion of the taper groove 13, As shown in FIG. 8, is removed by the rounded corner portion 231 between the inclined structure formed by the front surface of the connecting end 220 of the tool and the first working end 230 projecting from the front surface of the connecting end 220, 9, the burr formed on the front end edge of the mounting groove 12 has a rounded corner portion 251 forming a connecting portion between the third processing end 250 and the second processing end 240, The chamfering of the burrs is performed for each part It is.

10, the inner diameter (taper groove and mounting groove) of one side of the fitting joint 10 is completed, and then the fitting joint 10 is turned in the left-right direction The fitting joint 10 as shown in Fig. 1 is completed by repeating the above-described machining operation.

As a result, since the fitting tool of the present invention is constructed so that the taper grooves 13 and the mounting grooves 12 can be integrally formed on the inner peripheral surface of the fitting joint 10 formed with the flow holes 11, The machining operation performed using a plurality of tools can be completed by a single operation, thereby reducing the manufacturing cost and shortening the operation time.

The taper grooves 13 and the mounting grooves 12 are integrally formed by a single tool so that the taper grooves 13 and the mounting grooves 12 So that the coupling between the fluid tube and the sleeve connected to the fitting joint 10 can be accurately performed, thereby eliminating the fear of fluid leakage.

Particularly, the fitting tool of the present invention has a rounded corner portion 231 and a third machining end 250 between the front surface of the connecting end 220 and the first machining end 230 protruding therefrom, Since the corner portions of the inner circumferential surface of the fitting joint 10 are chamfered when the taper grooves 13 and the mounting grooves 12 are formed by the rounded corner portions 251 forming the connecting portion between the two processing ends 240, A separate operation for eliminating the burrs generated in the apparatus is not required.

10. Fitting joint 11. Flow hole
12. Mounting groove 13. Tapered groove
100. Shank part 200. Cutting blade
210. Discharge groove 220. Connecting end
230. First working end 240. Second working end
250. Third processing stage 231, 251. Corner area
232,242. Cutting face
233, 234, 243, 244. Clearance angle face
300. Oil hole

Claims (5)

And a tapered tapered groove for mounting a sleeve is formed on a tool for machining a fitting joint which is formed sequentially from a portion where the flow hole is formed, As a result,
A shank portion gripped by the tool holder while forming a rear end;
And a cutting edge portion which is positioned in front of the shank portion and integrally processes the mounting groove and the tapered groove of the fitting joint and is formed with a plurality of discharge grooves for discharging the machining chips along the periphery,
The cutting blade portion
A first machining step of machining the inner circumferential surface of the tapered groove of the fitting joint into a tolerance range while being formed as a tapered structure which is projected from the front surface of the connecting end integrally and connected to the shank portion, A second machining end extending forward from the tip end of the first machining end and machining the inner circumferential surface of the fitting groove of the fitting joint to a tolerance range and a second machining end protruding forward from the front surface of the second machining end, And a third machining end which is formed to have a diameter and faces a burr existing at an edge between the flow hole and the mounting groove together with the front surface of the second machining end. The method according to claim 1,
Wherein the outer surface of the first machining end and the outer surface of the second machining end are formed to have a cutting surface and a plurality of clearance angle surfaces that are formed to be inclined sequentially from the cutting surface. The method according to claim 1,
The third processing end is tapered so as to have a smaller diameter toward the tip end,
Wherein a corner portion between a front surface of the second machining end and a third machining end protruding from the second machining end is formed as a rounded portion and is provided as a cutting portion for chamfering the burr existing at the corner between the flow hole and the mounting groove. Foam tool for inner diameter machining. The method according to claim 1,
Wherein a rear end portion of the first processing end forming the cutting blade portion is formed to be smaller than a diameter formed by a tip end of the connection end and protruded from a front surface of the connection end,
The front end of the connecting end is inclined rearward toward the outer circumferential surface,
Wherein a corner portion between a front surface of the connection end and a first machining end protruding therefrom is formed as a rounded portion and is provided as a cutting portion for chamfering a burr formed at an outer end edge of a tapered groove. Tools. 5. The method according to any one of claims 1 to 4,
And an oil hole is formed through the center of the shank portion and the cutting blade portion.
KR1020150071442A 2015-05-22 2015-05-22 Form tool for cutting a fitting joint KR101700796B1 (en)

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Application Number Priority Date Filing Date Title
KR1020150071442A KR101700796B1 (en) 2015-05-22 2015-05-22 Form tool for cutting a fitting joint

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Application Number Priority Date Filing Date Title
KR1020150071442A KR101700796B1 (en) 2015-05-22 2015-05-22 Form tool for cutting a fitting joint

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KR20160136994A true KR20160136994A (en) 2016-11-30
KR101700796B1 KR101700796B1 (en) 2017-01-31

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108942119A (en) * 2018-08-31 2018-12-07 自贡硬质合金有限责任公司 A kind of processing method of the axle sleeve with guide groove
CN108971596A (en) * 2018-09-25 2018-12-11 汇专科技集团股份有限公司 A kind of multiple-cutting-edge finishing tool
CN109202144A (en) * 2018-09-25 2019-01-15 汇专科技集团股份有限公司 A kind of multiple-cutting-edge roughing tool
CN109396558A (en) * 2018-09-25 2019-03-01 广州汇专工具有限公司 It is a kind of for processing the Diamond Cutting Toolss of hard brittleness difficult-to-machine material

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111360590B (en) * 2020-04-23 2021-03-19 桂林福达曲轴有限公司 Method for removing grinding burrs on crankshaft journal edge and shoulder surface

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003139074A (en) * 2001-11-05 2003-05-14 Fujitsu General Ltd Working method of scroll member
JP2006110683A (en) * 2004-10-15 2006-04-27 Mitsubishi Materials Kobe Tools Corp End mill
JP4380285B2 (en) * 2003-10-10 2009-12-09 三菱マテリアル株式会社 Stepped end mill and manufacturing method thereof
JP2012071405A (en) * 2010-09-29 2012-04-12 Aisin Aw Co Ltd Tap with drill

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003139074A (en) * 2001-11-05 2003-05-14 Fujitsu General Ltd Working method of scroll member
JP4380285B2 (en) * 2003-10-10 2009-12-09 三菱マテリアル株式会社 Stepped end mill and manufacturing method thereof
JP2006110683A (en) * 2004-10-15 2006-04-27 Mitsubishi Materials Kobe Tools Corp End mill
JP2012071405A (en) * 2010-09-29 2012-04-12 Aisin Aw Co Ltd Tap with drill

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108942119A (en) * 2018-08-31 2018-12-07 自贡硬质合金有限责任公司 A kind of processing method of the axle sleeve with guide groove
CN108942119B (en) * 2018-08-31 2020-06-26 自贡硬质合金有限责任公司 Machining method of shaft sleeve with guide groove
CN108971596A (en) * 2018-09-25 2018-12-11 汇专科技集团股份有限公司 A kind of multiple-cutting-edge finishing tool
CN109202144A (en) * 2018-09-25 2019-01-15 汇专科技集团股份有限公司 A kind of multiple-cutting-edge roughing tool
CN109396558A (en) * 2018-09-25 2019-03-01 广州汇专工具有限公司 It is a kind of for processing the Diamond Cutting Toolss of hard brittleness difficult-to-machine material

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