Tungaloy Report No. 420-US. Deep hole drilling tool NEW. SLJ type. -Single flute brazed Gundrills. Ideal tool for small & deep hole!

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1 Tungaloy Report No. 40-US Deep hole drilling tool NEW SLJ type -Single flute brazed Gundrills Ideal tool for small & deep hole!

2 Ideal drilling tool for highly accurate deep hole! Drill body Specifications of A type drivers 3.00 ødc < ødc < ødc < ødc 4.00 Driver dia. øds () ødc 30 0 R L C ' 1.5 C1 Tool dia. ødc () L: 400 () L: 600 () L: 1000 () 3 SLJ0300L0400NA SLJ0300L0600NA 5 SLJ0500L0600NA SLJ0500L1000NA 5.5 SLJ0550L0600NA 6 SLJ0600L0600NA SLJ0600L1000NA SLJ0600L150NA SLJ0600L1650NA 6.1 SLJ0610L150NA SLJ0610L1650NA 6. SLJ060L150NA SLJ060L1650NA 7 SLJ0700L0600NA SLJ0700L1000NA SLJ0700L150NA SLJ0700L1650NA 8 SLJ0800L0600NA SLJ0800L1000NA SLJ0800L150NA SLJ0800L1650NA 8.1 SLJ0810L150NA SLJ0810L1650NA 8. SLJ080L150NA SLJ080L1650NA 10 SLJ1000L0600NA SLJ1000L1000NA SLJ1000L150NA SLJ1000L1650NA 10.1 SLJ1010L150NA SLJ1010L1650NA 10. SLJ100L150NA SLJ100L1650NA 1 SLJ100L150NA SLJ100L1650NA 1.1 SLJ110L150NA SLJ110L1650NA 1. SLJ10L150NA SLJ10L1650NA Other sized drills are also made to order. L: 150 () L: 1650 () : Japan ed Items Guidelines for attainable accuracies Tip length Workpiece materials Carbon and alloy steels Cast irons (FC,FCD / GG, GGG) Aluminum alloys, Copper alloys Surface roughness Roundness Cylindricity Over size ødc < ødc < ødc < ødc < ødc < ødc 4.0 Tip length R() Note: Over size values given in the table are based on the tool diameter.

3 Precautions Whipping guide When using long GunDrill at high speed, steel pipe encounters whipping effect due to centrifugal force. This phenomenon is strongly affected with cutting speed and pipe length. Red colored portion in the following graph shows the area in which whipping guide should be used. Guide bush Whipping guide Lp Lp Available range of special order tool Lp/D Coolant A water-insoluble fluid is recoended in machining with GunDrills. When using water soluble fluid, use the fluid for heavy duty cutting in higher concentration. Whipping guide should be used Recoended condition Vc (m/min) Minimum order quantity 3 pcs Available range Available range of overall length LJ L600 A 1 4 calculation Driver F (E) 3 Whipping guide Bushing guide Chip D Tool diameter: Dc = : shown in table below Driver type: A or M type (shown in fig. below) Note: If another type of driver is needed, please confirm when requesting quotation. Grade: GF Note: Coated gundrill is not available. 1 Series Tool diameter: 3 : L () LJ GunDrill 5.0 ø5.0 L Driver code ø10.99 L Tool diameter range Example of tool designation A M S 3.0 ødc < ødc < ødc < 4.0 A M Special L max () evacuation area C Driver diameter: øds () ø ø0.00 Drill bushing Workpiece Tip B A M type 3.00 ødc < ødc < ødc 4.00 R Rs Driver dia. øds () øds Rs R = A + B + C + D + (E) + F A : Regrinding area B : Hole depth C : Length of chip evacuation area D : Length for whipping guide (E) : Some margin F : Driver length 6 3

4 Amount of oil clearance Available in special designed tool Inner angle Inner relief angle Oil clearance (h) Secondary relief angle Primary relief angle Outer angle Outer corner Oil hole Flute Bearing surface Bevel-style point geometry Outer land (Margin) 3. ødc < ødc < ødc < ødc < ødc < ødc <.0.0 ødc 4.0 Cutting edge angles Oil clearance h () α = 4 β = 0 α = 30 β = (0.1øDc + 0.4) 0.8 (0.1øDc + 0.6) Note: α = Outer angle, β = Inner angle, ødc = Notch-style point geometry D/3 D/8 4~8 45 Stuck-style point geometry Selection of cutting edge angle Type Outer angle α No.1 30º Suitable materials Grey cast irons, Stainless steels Note Standard spec. No. 4º Carbon steels, Alloy steels - No.3 15º Brittle workpiece materials - Drivers 1 30' 1.5 A type M type RS Information sheet for quotation Company: Name: Tel: Tool diameter: ødc ødc = hole tolerance (required) Gundrilling depth: H Flute length: R H = R = 3 : L L = Workpiece material 4 Driver code A or M type Machine Gundrill machine Others( ) Required item If another type of driver is needed, please inform the specification of driver on this sheet. 4

5 Standard cutting condition Feed selection diagram Fig. 1 Carbon steels 0.05 Fig. Alloy steels Drill diameter: Drill diameter: Fig. 3 Tool steels and other special steels Fig. 4 Cast irons, aluminum alloys Drill diameter: Drill diameter: Fig. 5 Ductile and malleable cast irons Drill diameter: Coolant supply pressure and volume 5

6 376 N Ventura Drive, Arlington Heights, IL 60004, U.S.A. Phone: Fax: Tungaloy Canada 43 Elgin St. Unit 3, Brantford, Ontario N3S 7P7, Canada Phone: Fax: Distributed by: Tungaloy de Mexico S.A. C Los Arellano 113, Parque Industrial Siglo XXI Aguascalientes, AGS, Mexico 090 Phone: Fax: Scan for instant web access Jan. 014 (TA)