Drilling Depth ( L / D) Content

Transcription

1 Micro Long Drill General Features Micro Long Drills are oil-hole drills for high efficiency drilling that were developed for drilling deep, small-diameter holes. These next-generation, small-diameter hole drills feature improved strength - often a problem area with small-diameter drills. Characteristics and Applications Deep-hole drilling New groove shape ensures good drill rigidity and chip evacuation performance. High efficiency drilling to depths of over 2x drill diameter at over v f =5 (drill diameter 1.3mm, SUS416 equivalent). Optimal thinning and edge balance for stable chip control. Long tool life coating provides long tool life with a wide variety of work materials. Improved chip evacuation performance makes it possible to reduce spindle load fluctuation, ensuring stable tool life. Series Application Range Depth ( L / D) Content MLDH L5 ø.8 to 2. Up to 5 41 items Deep Hole MLDH L12 ø.8 to 2. Up to items MLDH L2 ø.8 to 2. Up to 2 41 items MLDH L3 ø.8 to 2. Up to 3 41 items Guide Hole MLDH P ø.8 to 2. Up to 2 41 items Recommended Cutting Conditions MLDH-P Type/MLDH-L5 Type Drill Up to 1. Up to 1.5 Up to 2. Drill Up to 1. Up to 1.5 Up to 2. Cutting Conditions Soft Steel Up to 2HB General Steel Up to 25HB Alloy Steel Up to 3HB Up to 2HB (v c : Cutting Speed m/min f: mm/rev) Cast Iron FC/FCD Aluminum Alloy Heat-resistant Steels v c f v c f v c f MLDH-L12 Type/MLDH-L2 Type/MLDH-L3 Type Cutting Conditions Soft Steel Up to 2HB General Steel Up to 25HB Alloy Steel Up to 3HB Up to 2HB Cast Iron FC/FCD Aluminum Alloy Min. - Optimum - Max. Heat-resistant Steels v c f v c f v c f Application Examples Min. - Optimum - Max. Automotive Component Mould (Equivalent to SUS416) Tool : MLDH14L2 (Guide : MLDH14P) Equipment : Vertical Machining Center (HSKA63) Coolant Supply : Internal Coolant (Emulsion Type, Pump Pressure : 4MPa) Cutting Conditions : v c =6m/min f=.3mm/rev H=21mm Tool Life : 6 Units (11.4m/reg) Tooling Component (Equivalent to SKD11) Tool : MLDH19L2 (Guide : MLDH19P) Equipment : Vertical Machining Center (HSKA63) Coolant Supply : Internal Coolant (Emulsion Type, Pump Pressure : 4MPa) Cutting Conditions : v c =6m/min f=.1mm/rev H=27mm Tool Life : 6 Units (18m/reg) 63

2 Micro Long Drill Internal Coolant Supply Up to.28% From.29% Steel Up to 45HRC From 46HRC Steel Alloy Steels Iron Cast Iron Alloy Alloy CFRP MLDH-P Type D MLDH-L Type ø D 12D 2D 3D ø -.1 Body ø.8 to.9mm Dimensions 2 MLDH 8P L L L L MLDH 81P L L L L MLDH 82P L L L L MLDH 83P L L L L MLDH 84P L L L L MLDH 85P L L L L MLDH 86P L L L L MLDH 87P L L L L MLDH 88P L L L L MLDH 89P L L L L MLDH 9P L L L L Grade: ACV7 Body ø.91 to 1.5mm Dimensions 2 MLDH 91P L L L L MLDH 92P L L L L MLDH 93P L L L L MLDH 94P L L L L MLDH 95P L L L L MLDH 96P L L L L MLDH 97P L L L L MLDH 98P L L L L MLDH 99P L L L L MLDH 1P L L L L MLDH 15P L L L L Grade: ACV7 64

3 Internal Coolant Supply MLDH-P Type MLDH-L Type Micro Long Drill Up to.28% From.29% Steel Up to 45HRC From 46HRC Steel Alloy Steels Iron Cast Iron Alloy Alloy CFRP MLDH-P Type D MLDH-L Type ø D 12D 2D 3D ø -.1 Body ø1.1 to 1.6mm Dimensions 2 MLDH 11P L L L L MLDH 115P L L L L MLDH 12P L L L L MLDH 125P L L L L MLDH 13P L L L L MLDH 135P L L L L MLDH 14P L L L L MLDH 145P L L L L MLDH 15P L L L L MLDH 155P L L L L MLDH 16P L L L L Grade: ACV7 Body ø1.65 to 2.mm Made to Order Items: Inquire about production of drills in tool diameters and lengths not listed above or not in stock Dimensions 2 MLDH 165P L L L L MLDH 17P L L L L MLDH 175P L L L L MLDH 18P L L L L MLDH 185P L L L L MLDH 19P L L L L MLDH 195P L L L L MLDH 2P L L L L Grade: ACV7 65

4 Micro MultiDrill MINI-MultiDrill MDUS / MDSS Type Very Small Drills for Very Small Hole & Telecom, Electronic Component, and Nozzle Applications Micro MultiDrill MDUS Type ø.3-ø.19mm High-precision shank! tolerance h3. Circularity.3μm or less. Cylindricity of.5μm or less. New ultra-thin TiAlN coating gives improved wear resistance. Perfect for steel, stainless steel, or copper machining. Available in sizes from ø.3mm to ø.19mm in.5mm increments. Application Examples For Steel,, and Other Metals ø3μm Work Material SUS34 Tool MDUS3-3C (ø.3mm) Cutting Conditions n=15,, vf =3 Step-Feed=.3mm Work Material SUS316 Tool MDUS1-3C (ø.1mm) Cutting Conditions n=2,, vf =2 Step-Feed=.1mm Carbide Mini Multi Drill MDSS Type ø.2-ø1.mm The combination of a hard, tough carbide substrate and a high rigidity design (web thickness, web thickness ratio, helix angle) greatly improves fracture resistance. PVD coating specifically for small drills significantly extends tool life. Suitable for a wide range of materials including carbon steel, alloy steel, die steel, and stainless steel. s standardised to 3-mm diameter, 38-mm total length for greater ease of use. No. of Holes to Fracture 12, 1, 8, 6, 4, 2, More than 1, holes and still running MDSS Work Material SUS34 Tool MDSS5 (ø.5mm) Cutting Conditions vc =15m/min (n=9,55 ), f=.5mm/rev (vf =48) H=1.5mm, Step-Feed=.5mm steps, Wet 1,331 1,67 1,912 1,134 Comp. A Comp.B Micro Multi Pointing Drill MDUP Type ø.3-ø.18mm For drilling guide holes with MDUS type drills 12 Helix Angle: 3 38 Tolerance Below.1 from -.5 to -.1 Above.1 from -.1 to -.15 ø h3 Dimensions Effective Length Total length Tip.3 MDUP 3-3C C C MDUP 8-3C C MDUP 12-3C C MDUP 18-3C Made-to-Order Fine Drill ø.2mm- Exclusive cutting edges are available for various work materials including non-metals, ceramics, and resins. Customized designs are also available for the improvement of efficiency, such as through the integration of processes by using a stepped drill. Various drill diameters (from ø.2) and LxDs are available to order. (Contact us for possible profiles.) Example of Proposed Stepped Drill ø.5mm For Ceramics and Non-metals.7mm.5mm MDSS Recommended Cutting Conditions (Wet) (Inquire about cutting conditions for the MDUS type) Work Cond Dia. ø.2 ø.3 ø.4 ø.5 ø1. Alloy Steel, Pre-hardened Steel SCM,NAK 26,5 26,5 25,9 25,5 15, D.2D to.5d * Die Steel, Tempered Steel (3 to 4HRC) 21,2 21,2 19,9 19,1 12, ø.15mm.1d.2d to.5d * 1,6 1,6 9,5 9,5 5,6 SUS D 1. The above conditions are recommended under wet conditions, using water-soluble coolant. 2. If machine noises and vibrations are present, please adjust the cutting conditions accordingly. 3.If the machine cannot achieve the standard spindle speed, please use the max. spindle speed available. In this case, lower the feed rate by the same ratio. * Step feed is recommended for drilling of holes deeper than 3xD. 66

5 MDSS Type Micro MultiDrill MINI-MultiDrill MDUS / MDSS Type External Coolant Supply/Small Up to.28% From.29% Steel Up to 45HRC From 46HRC Steel Alloy Steels Iron Cast Iron Alloy Alloy CFRP MDUS Type MDSS Type 1D ø.3 to.19mm ø.2 to.34mm ø3.5 to 1.mm -.3 Helix Angle: 3 12 ø h ø LS LS LS ø h ø h6 Body ø.3 to.49mm Dimensions Effective Length Total length Tip LS.3 1 MDUS 3-3C MDUS 35-3C C MDUS 45-3C C MDUS 55-3C C MDUS 65-3C C MDUS 75-3C C MDUS 85-3C C C C MDUS 11-3C C MDUS 13-3C C C MDUS 16-3C C C MDUS 19-3C MDSS MDSS MDSS MDSS Body ø.5 to 1.mm Dimensions Effective Length Total length Tip LS.5 1 MDSS MDSS MDSS MDSS MDSS MDSS