585 Каталог ISCAR 2017 Вращающийся режущий инструмент и инструментальная оснастка Стр.581

Каталог ISCAR 2017 Ротационный инструмент Стр. 581 0585 ENG Lab2u

SOUDDRiLL USER GUIDE Recommended Drilling Procedure for Deep Hole Drilling (20XD) 1. Drill a pilot hole 1-2 D deep with a short drill. The pilot drill should be 0.03-0.05 mm larger than the long drill and its point angle should also be larger (over 140°). 2. Enter the pre-hole using low speed and feed until it engages the material. 3. Increase cutting speed and feed to recommended conditions - no pecking is required 4. After having reached the required depth, reduce speed by more than 50% while retracting from the hole. Recommended Drilling Conditions for Solid Carbide 20xD Drills Drill Dia. Carbon Steel Alloy Steel Stainless Steel Cast Iron Ductile Cast Iron (30 HRc) (45 HRc) (GG25) (GG45) (mm) V(m/min) f(mm/rev) V(m/min) f(mm/rev) V(m/min) f(mm/rev) V(m/min) f(mm/rev) V(m/min) f(mm/rev) 5 60-120 0.12-0.25 50-100 0.1-0.20 30-60 0.08-0.15 60-120 0.15-0.30 40-80 0.15-0.25 6 60-120 0.14-0.25 50-100 0.14-0.25 30-60 0.10-0.18 60-120 0.14-0.25 40-80 0.14-0.25 7-8 60-120 0.16-0.30 50-100 0.16-0.30 30-60 0.10-0.20 60-120 0.16-0.30 40-80 0.16-0.30 9-10 60-120 0.16-0.30 50-100 0.10-0.20 30-60 0.08-0.115 60-120 0.20-0.35 40-80 0.20-0.35 General Recommendations It is mostly recommended to use an external coolant jet at a minimum pressure of 10 to15 bar during drilling for prolonged tool life and to facilitate chip evacuation. When machining alloy and stainless steel, it is mostly recommended to use ER JET 2 collet to prolong tool life and prevent built-up edge. Semi-synthetic or emulsion lubricants should be used to extend tool life. Drilling stainless steel or high temperature alloys requires high oil pressure and 7-15% mineral or vegetable based oil emulsion for prolonged tool life. Dry machining may badly affect hole quality and drill tool life. In case of chip evacuation problems or when poor surface finish is obtained, it is most recommended to use pecking cycle. For optimal performance, it is recommended to use the 3 flute, 5xD solid carbide drills in rotating or stationary applications with a maximum of 0.02 mm runout. Larger runout will reduce drill performance and badly affect hole quality. The solid drills can be clamped into any of ISCAR's tooling systems such as: 1. Collet chucks 2. Thermal shrink chucks 3. ISCAR MAXIN power chucks It is recommended to use the solid drills in SHORTIN adapters with AA super precision collets to obtain a high level of hole quality and prolonged drill tool life. Balanceable adapters should be used for applications above 10,000 RPM in order to minimize vibrations and gain a reliable and prolonged cutting edge life. Interrupted cut applications reduce hole accuracy, quality and drill life. Advantages The drills provide higher hole cylindricity, roundness, straightness, concentricity and surface finish when compared to 2 flute solid carbide drills. The 3 flute solid carbide drills with a 150° point head can serve as centering drills for CHAMDRILL/ SUMOCHAM or CHAMGUN if necessary. See pages 590-591 for troubleshooting guide for common problems. Solid carbide drills can be used on a wide range of materials and different cutting conditions with high reliability and performance repeatability. This can reduce tool inventory and logistic costs. 3 Flute Solid Carbide Drills Three flute drills are used extensively on nonferrous metals because of their excellent performance on these materials. These solid carbide drills were designed with a special cutting edge geometry that can be used on a broad spectrum of materials including steel, stainless steel, high temperature alloys, cast iron and nonferrous materials. Their dimensions are according to DIN 6537 standard. The SCCD drills are manufactured in m7 diameter tolerance, with cylindrical shanks according to DIN 6535 HA standard, 30° spiral flute helix, 150° head point angle and a reinforced web taper. The drills can be used on surface applications of up to 20° sloped entry/exit. (In this case, the drill should be held in a thermal shrink collet or a MAXIN power chuck). The 3 flute solid carbide drills cannot be used on radial drill adjustment diameter devices such as our FITBORE adapter. Followed by a CHAMDRILL SUMOCHAM/CHAMGUN 581 SOLID CARBIDE DRILLS