www.kennametal.com INNOVATIONS CATALOGUE HARVI III Ball Nose
HARVI III Ball Nose High-Performance Solid Carbide End Mills Primary Application HARVI III Ball Nose tooling takes high-performance profiling, semi-finishing, and finishing to the next level. Designed to provide maximum metal removal rates in titanium and stainless steel while achieving supreme surface conditions. A wide range of diameters and length variations are available from stock. Outstanding metal removal rates increase productivity. Highest tool life due to eccentric relief grind and proprietary KCSM15 Beyond grade. Features and Benefits Advanced Technology Six unequally spaced flutes for chatter-free machining at high feed rates. Less cutting forces and pressure on cutting edge through tailored axial and radial rake angles. Eccentric relief design increases tool life through higher edge stability. Proprietary tapered core provides highest tool stability at roughing and finishing operations. Extensive Standard Offering Diameter ranges 10 20mm. Necked, round shank offering in two length variations. Tailored Grade Proprietary KCSM15 Beyond grade for exceptional tool life in titanium and stainless steels. Customisation Engineered solutions, including shank and non-standard length versions are available upon request. 2 www.kennametal.com
Proprietary core design Improves tool stability. Eccentric relief grind Improves edge stability. Enables higher feed rates. 38 helix angle Roughing and finishing. Unequal flute spacing Reduces vibrations. Improves surface finish. KCSM15 Beyond grade Optimised for titanium machining. Highest tool life. Enables higher cutting speeds. www.kennametal.com 3
High-Performance Solid Carbide End Mills HARVI HARVI III Ball Nose UJBE Unequal Flute Spacing With Eccentric Relief Grind and Neck Kennametal standard dimensions. Centrer cutting. Optimised geometry for titanium machining. Unequal flute spacing minimises chatter for smoother machining. Single tool for both roughing and finishing operations requiring fewer setups. nujbe 6-Flute Ball Nose with Eccentric Relief Grind Metric NEW! v first choice j alternate choice KCSM15 D1 D D3 Ap1 max L3 L UJBE1000A6AN 10,00 10,00 9,40 10,00 30,00 72,00 UJBE1000A6AL 10,00 10,00 9,40 10,00 30,00 121,50 UJBE1200A6AN 12,00 12,00 11,28 12,00 36,00 83,00 UJBE1200A6AL 12,00 12,00 11,28 12,00 36,00 125,00 UJBE1600A6AN 16,00 16,00 15,04 16,00 48,00 100,00 UJBE1600A6AL 16,00 16,00 15,04 16,00 48,00 150,00 UJBE2000A6AN 20,00 20,00 18,80 20,00 60,00 115,00 UJBE2000A6AL 20,00 20,00 18,80 20,00 60,00 150,00 NOTE: For application data, see page 5. End Mill Tolerances D1 tolerance D tolerance h6 3-0,014/-0,028 3 +0/-0,006 >3 6-0,020/-0,038 >3 6 +0/-0,008 >6 10-0,025/-0,047 >6 10 +0/-0,009 >10 18-0,032/-0,059 >10 18 +0/-0,011 >18 30-0,040/-0,073 >18 30 +0/-0,013 4 www.kennametal.com
High-Performance Solid Carbide End Mills HARVI Application Data nharvi III UJBE Ball Nose Unequal Flute Spacing Roughing Material Group P M S Side Milling (A) KCSM15 Recommended feed per tooth (fz=mm/th) for side milling (A). A Cutting Speed vc m/min nharvi III UJBE Ball Nose Unequal Flute Spacing Finishing D1 Diameter ap ae min max mm 10.0 12.0 16.0 20.0 0 Ap1 max 0,4 x D 150 200 fz 0,072 0,083 0,101 0,114 1 Ap1 max 0,4 x D 150 200 fz 0,072 0,083 0,101 0,114 2 Ap1 max 0,4 x D 140 190 fz 0,072 0,083 0,101 0,114 3 Ap1 max 0,4 x D 120 160 fz 0,061 0,070 0,087 0,101 4 Ap1 max 0,4 x D 90 150 fz 0,054 0,062 0,077 0,088 5 Ap1 max 0,4 x D 60 100 fz 0,048 0,056 0,070 0,081 1 Ap1 max 0,4 x D 90 115 fz 0,061 0,070 0,087 0,101 2 Ap1 max 0,4 x D 60 80 fz 0,048 0,056 0,070 0,081 3 Ap1 max 0,4 x D 60 70 fz 0,040 0,047 0,057 0,065 1 Ap1 max 0,4 x D 50 90 fz 0,061 0,070 0,087 0,101 2 Ap1 max 0,4 x D 50 90 fz 0,061 0,070 0,087 0,101 3 Ap1 max 0,4 x D 25 40 fz 0,032 0,037 0,046 0,054 4 Ap1 max 0,4 x D 50 60 fz 0,045 0,052 0,064 0,074 H 1 Ap1 max 0,4 x D 80 140 fz 0,054 0,062 0,077 0,088 Material Group P M S Side Milling (A) KCSM15 Recommended feed per tooth (fz=mm/th) for side milling (A). A Cutting Speed vc m/min D1 Diameter ap ae min max mm 10.0 12.0 16.0 20.0 0 Ap1 max 0,06 x D 285 380 fz 0,086 0,099 0,121 0,137 1 Ap1 max 0,06 x D 285 380 fz 0,086 0,099 0,121 0,137 2 Ap1 max 0,06 x D 266 361 fz 0,086 0,099 0,121 0,137 3 Ap1 max 0,06 x D 228 304 fz 0,073 0,084 0,105 0,121 4 Ap1 max 0,06 x D 171 285 fz 0,065 0,075 0,092 0,106 5 Ap1 max 0,06 x D 114 190 fz 0,058 0,067 0,084 0,097 1 Ap1 max 0,06 x D 171 218 fz 0,073 0,084 0,105 0,121 2 Ap1 max 0,06 x D 114 152 fz 0,058 0,067 0,084 0,097 3 Ap1 max 0,06 x D 114 133 fz 0,048 0,056 0,068 0,078 1 Ap1 max 0,06 x D 95 171 fz 0,073 0,084 0,105 0,121 2 Ap1 max 0,06 x D 95 171 fz 0,073 0,084 0,105 0,121 3 Ap1 max 0,06 x D 48 76 fz 0,038 0,045 0,056 0,065 4 Ap1 max 0,06 x D 95 114 fz 0,053 0,062 0,077 0,089 H 1 Ap1 max 0,06 x D 152 266 fz 0,065 0,075 0,092 0,106 NOTE: Lower value of cutting speed is used for high stock removal applications or for higher hardness (machinability) within group. Higher value of cutting speed is used for finishing applications or for lower hardness (machinability) within group. Above parameters are based on ideal conditions. For smaller taper machining centers, please adjust parameters accordingly on >12mm diameter. www.kennametal.com 5
High-Performance Solid Carbide End Mills HARVI III Ball Nose Application Examples HARVI III Ball Nose with Eccentric Relief HARVI III Ball Nose with Eccentric Relief CHALLENGE CHALLENGE Finish profile machining of keel for weapon attachment. Vertical machining center. Titanium Alloy Beta (R56400) External emulsion. Rough profile yoke contour milling of bogey pitch trimmer. Lathe with driven tooling. 4340 low-alloy steel. External emulsion. SOLUTION SOLUTION HARVI III ball nose Ø 12,7mm (.5") with eccentric relief in KCSM15. 6 effective teeth. HARVI III ball nose Ø 20mm with eccentric relief in KCSM15. 6 effective teeth. vc fz ap ae 91 m/min 0,053 mm/z 30,5mm 0,6mm CUTTING DATA vc fz ap ae 122 m/min 0,076 mm/z 43,2mm 2,5mm CUTTING DATA RESULT RESULT Tool life of 1 complete workpiece. Reduced machining time from 210 minutes to 90 minutes. Surface finish Ra 3,93 µm. 7 workpiece tool life compared to 5 with competitive tooling. Surface finish 5,24 µm BENEFIT BENEFIT Predictable wear at main lands instead of cutting edge flaking with competitive tooling. Extended tool life of HARVI III eliminated a mid-part tool change. Improved surface finish to previous 4-flute ball nose tools. Reduced machining time from 88 minutes to 49 minutes. About 30% higher feed rate due to feed per tooth and 6 instead of 4 flutes. 6 www.kennametal.com
High-Performance Solid Carbide End Mills HARVI III Ball Nose Application Examples HARVI III Ball Nose with Eccentric Relief HARVI III Ball Nose with Eccentric Relief CHALLENGE CHALLENGE Hem stich profile neck to flanged blend. Lathe with driven tooling. 4340 low-alloy steel. External emulsion. Finish interior walls and blend filet radius. Horizontal machining center. 4340 low-alloy steel. External emulsion. SOLUTION SOLUTION HARVI III ball nose Ø 12,7mm (.5") with eccentric relief in KCSM15. 6 effective teeth. HARVI III ball nose Ø 12,7mm (.5") with eccentric relief in KCSM15. 6 effective teeth. vc fz ap ae 107 m/min 0,064 mm/z 1,3mm 1,3mm CUTTING DATA vc fz ap ae 107 m/min 0,064 mm/z 14mm 1,3mm CUTTING DATA RESULT RESULT Increase in cutting speed from 46 m/mm to 107 m/min. Up to 10 workpiece tool life compared to previous 6 pieces. Up to 6 workpiece tool life compared to 2 with competitive tooling. Surface finish Ra 2,75 µm. BENEFIT BENEFIT Reduced machining time to 8 minutes compared to previous 29 minutes with competitive 4-flute ball nose tool. 200% increase in Metal Removal Rate (MRR) with HARVI III ball nose. Reduced machining time from 25 minutes to 10 minutes. Improved surface finish from Ra 3,93 µm to Ra 2,75 µm at accelerated feeds and speeds. Reduction in harmonics and vibrations with HARVI III ball nose tooling for reduced noise level. www.kennametal.com 7
INNOVATIONS CATALOGUE WORLD AND CORPORATE HEADQUARTERS Kennametal Inc. 1600 Technology Way Latrobe, PA 15650 USA Phone: 800 446 7738 (United States and Canada) E-mail: ftmill.service@kennametal.com EUROPEAN HEADQUARTERS Kennametal Europe GmbH Rheingoldstrasse 50 CH 8212 Neuhausen am Rheinfall Switzerland Phone: +41 52 6750 100 E-mail: neuhausen.info@kennametal.com ASIA-PACIFIC HEADQUARTERS Kennametal Singapore Pte. Ltd. 3A International Business Park Unit #01-02/03/05, ICON@IBP Singapore 609935 Phone: +65 6265 9222 E-mail: k-sg.sales@kennametal.com INDIA HEADQUARTERS Kennametal India Limited CIN: L27109KA1964PLC001546 8/9th Mile, Tumkur Road Bangalore - 560 073 Phone: +91 080 22198444 or +91 080 43281444 E-mail: bangalore.information@kennametal.com www.kennametal.com 2014 by Kennametal Inc., Latrobe, PA 15650 USA All rights reserved. l A-14-03863EN_me