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NEW Tungaloy Report No. 422-E Indexable head gundrill Zero set-up time! Quick, on-machine head indexing! GNSTG / TGI type

Indexable head gundrill NEW - Tungaloy Corporation · Tungaloy Report No. 422-E Indexable head gundrill Zero set-up time! Quick, on-machine head indexing! GNSTG / TGI type. 2 Innovative

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NEW

Tungaloy Report No. 422-E

Indexable head gundrill

Zero set-up time! Quick, on-machine head indexing!

GNSTG / TGI type

2

Innovative gundrill with replaceable gundrill heads!

Only 2 min.Conventional tool

Head indexing time (min/head)

Reduces gundrill indexing time by 80%

Gundrill heads can be changed on the machine to drastically reduce set-up times

One gundrill body can carry a range of head diametersHigh clamping rigidity Excellent straightness and concentricity that is comparable to brazed gundrillsMaintains high hole precision with center alignmentExcellent surface roughness

10 min.

Dove-tail clamping system with easy operation

Gundrill head(M type)

Clamp portion

Pipe

One gundrill body can accurately clamp up to 25 gundrill head indexes

Heads can be re-ground up to 10 times, still obtaining excellent repeatability

Various chip formers are available

Contact face supports thrust force

Dove-tail system creates secure clamping

Dove-tail system and face contact deliver incredible rigidity

3

0.04 0.08 0.060.03 0.04 0.05

20 mm

20 mm

8 - 9

0.07 - 0.1 / 100

0.4 - 1.6

Two chip former types available for a variety of application

Steel SteelCast Iron Cast IronStainless Non-ferrous Non-ferrousSuperalloys

Feed: f (mm/rev) Feed: f (mm/rev)

: GNSTG-1100-0300-10: TGI110-P-G-KS15F (øDc = 11 mm): Vc = 70 m/min: f = 0.03 - 0.05 mm/rev: H = 150 mm: Wet : Vertical M/C, BT40

: GNSTG-1100-0300-10: TGI110-M-G-KS15F (øDc = 11 mm): Vc = 70 m/min: f = 0.03 - 0.08 mm/rev: H = 150 mm: Wet : Vertical M/C, BT40

BodyHeadCutting speedFeedHole depthCoolantMachine

BodyHeadCutting speedFeedHole depthCoolantMachine

Comparison of chip control Comparison of chip control

Alloy steel SCM440 / 42CrMo4 High carbon steel S55C / C55

Brazed gundrill

Condition Condition

•Recommended head for general purpose use on a wide range of work materials•Demonstrates excellent chip control. Same level as conventional tools

•Excellent chip control with chipbreaker•Higher feed is possible for steel drilling•Possible to use on machining centers or lathes with standard coolant pressure

P type for general purpose drilling and the M type with chipbreaker are available.A PVD coated grade can also be supplied.

Accuracy of drilled hole

Drill head

P type M type

Note: optimum coolant pressure is required when using on machining centers or lathes

Hole diameter tolerance (IT class)

Straightness (rotating tool) (mm) Surface fi nish Ra(µm)

4

øDc (mm) L2 (mm)TGI105-P-G-KS15F � 10.5 21 P KGDT-100TGI110-P-G-KS15F � 11 22 P

KGDT-110TGI115-P-G-KS15F � 11.5 23 PTGI120-P-G-KS15F � 12 24 P

KGDT-120TGI121-P-G-KS15F � 12.1 24.2 PTGI130-P-G-KS15F � 13 26 P KGDT-130TGI140-P-G-KS15F � 14 28 P

KGDT-140TGI141-P-G-KS15F � 14.1 28.2 PTGI150-P-G-KS15F � 15 30 P

KGDT-150TGI160-P-G-KS15F � 16 32 PTGI161-P-G-KS15F � 16.1 32.2 PTGI110-M-G-KS15F � 11 22 M

KGDT-110TGI115-M-G-KS15F � 11.5 23 MTGI120-M-G-KS15F � 12 24 M

KGDT-120TGI121-M-G-KS15F � 12.1 24.2 MTGI140-M-G-KS15F � 14 28 M

KGDT-140TGI141-M-G-KS15F � 14.1 28.2 MTGI160-M-G-KS15F � 16 32 M

KGDT-150TGI161-M-G-KS15F � 16.1 32.2 MTGI110-P-G-AH725 ★ 11 22 P KGDT-110TGI120-P-G-AH725 ★ 12 24 P KGDT-120TGI140-P-G-AH725 ★ 14 28 P KGDT-140

øDc

0 -0.0

08

L2 (= 2 x øDc)

TGI SPC1090 KS15FP B- - - -1 52 63 4

1TGI P

MSPC

1090 ø10.90

BKS15FAH725

1 3 5

2

4 6

Coolant supply: Internal M type

Chipbreaker

Gundrill head

Gundrill diameter Head length

P type

● : Stocked items

★ : Available from 2013

Gundrill head TGI type

Designation system (for specially designed tools)

Gundrill head

Specially designed guide pads for specifi c applications are available upon request.Please ask us when ordering.

Series Type of head

Gundrill diameter øDc (mm)Guide pad Grade

TungGun SpecialGeneralChipbreaker

Special designed gundrill headSpecial designed head can be ordered

Minimum order quantity

Applicable range

10 pieces

Tool diameter øDc:ø10.4 - 16.19 mmGrade: KS15F, AH725 (coated grade)

Note: Special design of cutting edge and guide pad is possible. Please ask when ordering.

Cat. No. Stock Type of head Clamping Key

5

GNSTG 1050 0500 58- - -1 2 3 4

GNSTG 0500 500 58 581050 ø10.501 3 42

H =    mm

R =    mm

L =      mm

No. =

øDs =     mm

Rs =     mm

RsR

øs

øc

Gundrill body

Designation system

Gundrill body (Example of designation)

Series Overall length L (mm) Driver codeGundrill diameter øDc (mm)

TungGun

Gundrill body should be ordered depending on each application. When ordering, tool information such as gundrill diameter, overall length and type of driver must be specifi ed.

* Refer to page 7

Special designed body

Information sheet for quotation

Company: Name: Tel:

Gundrill diameter: øDc

Overall length: L

Driver codeShank specifi cation

Gundrilling depth: HFlute length: R

Work material

Machine

2 3 4

2

3

4

**

*

*

* Required item

Minimum order quantity

Applicable range

Driver (shank) specifi cation

1 piece

Please ask when requesting quotation

Please select the driver number shown in page 7. Specially designed drivers can be ordered.

• M/C • Lathe machine• Gundrill machine• Others(       )

øDc =    mm

hole tolerance (required)

6

Vc (m/min)

øDc (mm)ø10.4 - ø11.69 ø11.7 - ø13.19 ø13.2 - ø16.19

70 - 110 0.030 - 0.050 0.035 - 0.060 0.040 - 0.070

50 - 110 0.030 - 0.050 0.035 - 0.060 0.040 - 0.070

50 - 70 0.025 - 0.040 0.030 - 0.045 0.035 - 0.050

40 - 80 0.025 - 0.040 0.030 - 0.045 0.035 - 0.050

80 - 115 0.040 - 0.100 0.050 - 0.120 0.060 - 0.140

70 - 100 0.040 - 0.100 0.050 - 0.120 0.060 - 0.140

80 - 160 0.030 - 0.170 0.030 - 0.180 0.035 - 0.190

80 - 180 0.020 - 0.130 0.030 - 0.160 0.040 - 0.180

25 - 60 0.025 - 0.030 0.030 - 0.035 0.030 - 0.040

25 - 50 0.025 - 0.030 0.030 - 0.035 0.030 - 0.040

2 x ø

Dm

in

Gundrilling procedure for lathe and machining centerWhen using a gundrill on a Lathe machine or Machining center, a short drill should be used for gundrilling a guide hole. This short hole will guide the gundrill as it enters.

Note: When drilling steel with M type head, 20 - 50% higher feed can be applied.

The depth of guide hole should be 2 - 3 times of gundrill diameter.(Read Note)

Stop the rotation of TungGun

➀ Drill the guide hole

➁ Mounting the TungGun

➂ Feed to insert the gundrill into the guide hole whilst supplying coolant to the hole. Stop the feed several millimeters above the bottom of guide hole

➃ "On" cutting rotation

➄ "On" cutting feed

Operation

CautionGundrill should NOT be in rotating condition outside the Hole.Note:

The guide hole diameter is very important when deep drilling. Accuracy of the guide hole infl uences accuracy of gundrilling hole.

AllowanceRecommendationHigh accuracy

: +50 µm: +10 - 30 µm: +3 - 10 µm

➅ Complete the gundrilling

➆ Retract

➇ Stop at the inserted position as shown in left fi gure

➈ "Turn off" cutting rotation and coolant supply

➉ Pull gundrill from the workpiece and return to zero position

Work materials Cutting speedFeed: f (mm/rev)

Carbon steel, free cutting steel (S45C / C45, S55C / C55 etc.)

Low alloy steel (SCr420 / 20Cr4 etc.)

High alloy steel (SCM440 / 42CrMo4 etc.)

Stainless steel (SUS304 / X5CrNi18-9 etc.)

Grey cast iron (FC300 / 300 / GG30 etc.)

Ductile cast iron (FCD450 / 450-10S / GGG45 etc.)

Aluminium alloy

Copper alloy

Titanium alloy

Hardened steel (SKD11 / X153CrMoV12 etc.)

Standard cutting condition

7

øDs x Rs (mm)

4 x 28 01 5 x 28 02 6 x 36 03 8 x 36 0410 x 40 0512 x 45 0614 x 45 0716 x 48 0818 x 48 0920 x 50 1025 x 56 1132 x 60 1240 x 70 1350 x 80 1463 x 90 15 6 x 36 16 8 x 36 1710 x 40 1812 x 45 1916 x 48 2018 x 48 2120 x 50 2225 x 56 2332 x 60 2440 x 70 2550 x 80 2663 x 90 27 6 x 36 28 8 x 36 2910 x 40 3012 x 45 3116 x 48 3218 x 48 3320 x 50 3425 x 56 3532 x 60 3640 x 70 37 6 x 36 38 8 x 36 3910 x 40 4012 x 45 4116 x 48 4218 x 48 4320 x 50 44

CM1 45CM2 46CM3 47CM4 48CM1 49CM2 50CM3 51CM4 52

øDs x Rs (mm)

6 x 30 5310 x 40 5416 x 45 55

19.05 x 69.8 5625 x 70 57

25.4 x 69.8 5831.75 x 69.8 5938.1 x 69.8 60

16 x 50 61

10 x 50 M6 x 0.5 62

10 x 60 M6 x 0.5 63

12.7 x 50 M6 x 0.5 64

16 x 80 M10 x 1 65

25 x 100 M16 x 1.5 66

36 x 120 M24 x 1.5 67

10 x 68 M6 x 0.5 68

16 x 90M10 x 1 69

5 x 112 M16 x 1.5 70

6 x 135 M24 x 1.5 71

25 x 70 7232 x 70 73

12.7 x 38.1 7416 x 70 75

19.05 x 69.8 7620 x 70 77

12.7 x 38.1 7819.05 x 69.8 7925.4 x 69.8 8025.4 x 100 81

31.75 x 69.8 8231.75 x 100 8338.1 x 69.8 8438.1 x 100 8516 x 112

Tr 16 x 1.5 86

20 x 126 Tr 20 x 2 87

28 x 126 Tr 28 x 2 88

36 x 162 Tr 36 x 2 89

16 x 40 9025 x 50 9135 x 60 92

Rs øs

Rs

øs

Rs øs

Rs øs

Rs M øs

Rs øs

Rs øs

Rs øs

øs

Rs r

øs

Rs

Rs

Rs

øs

øs

Rs

øs

Rs

M

øs

Colored part: similar specifi cation to drivers of conventional gundrill*

Driver code chart

Type of driver Type of driverShape ShapeDriver code

Driver code

Cylindrical shank

Central clamping

surface 15°

Cylindrical with thread

Central clamping

Hexagonal

Central clampingtapered

Spraymist driver

Central clamping

frontal surface 2°

VDI design

Trapezoidal thread

Frontal clamping

surface 15°

DIN1835ADIN6535HA

DIN1835B

DIN6535HB

DIN1835E

DIN6535HE

DIN228AK

DIN228BK

Weldon shank

With whistle notch

With whistle notch

Tapered shank

Tapered shank

øDc (mm) ø (mm)10.4 - 10.69 10.2 10.7 - 10.89 10.5 10.9 - 11.19 10.7 11.2 - 11.39 11.0 11.4 - 11.69 11.2 11.7 - 11.89 11.5 11.9 - 12.19 11.7

øDc (mm) ø (mm)12.2 - 12.39 12.0 12.4 - 12.69 12.2 12.7 - 12.89 12.5 12.9 - 13.19 12.7 13.2 - 13.39 13.013.4 - 13.69 13.213.7 - 13.89 13.5

øDc (mm) ø (mm)13.9 - 14.19 13.714.2 - 14.49 14.014.5 - 14.79 14.314.8 - 15.19 14.615.2 - 15.49 15.015.5 - 15.79 15.315.8 - 16.19 15.6

øDc (mm)10.40 - 10.99 KGDT-10011.00 - 11.99 KGDT-11012.00 - 12.99 KGDT-12013.00 - 13.99 KGDT-13014.00 - 14.99 KGDT-14015.00 - 16.19 KGDT-150

øc

Gundrill head

Poc

ket

diam

eter

ø

Clamping key

Air

Oil Clamping key

Pocket design and clamping key

How to fi x the gundrill head

➀ ➁ ➂

Gundrilldiameter

Gundrill diameter

Gundrill diameter Gundrill diameter

Pocket diameter

Pocket diameter

Pocket diameter Clamping key

Produced from Recycled paper

Distributed by:

ISO 9001 certifi ed ISO 14001 certifi edQC00J0056 EC97J1123Tungaloy Corporation Tungaloy Group Japan site and Asian production site18/10/1996 26/11/1997

May. 2013 (TJ)

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