4JER 4JER. For superalloy machining. High efficiency and stable machining for heat resistant alloys such as Inconel.

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1 Solid end mill For superalloy machining High efficiency and stable machining for heat resistant alloys such as Inconel Resistant to breakage and capable of stable slotting and trochoidal machining Long tool life and stable machining with MEGACOAT HARD Improved chatter resistance with variable helix design

2 End mills (Medium length of cut) ødc øds h5 l L Description Availability (Unit: mm) Outer diameter Outer diameter Corner R Flute length Shank diameter Overall length flutes ø Dc tolerance r l ø Ds L Z R R R R R R R R R R R R R R R R R R R R R R R R Available 5

3 For heat resistant alloy machining High efficiency and stable machining for heat resistant alloys auch as Inconel Long tool life machining with MEGACOAT HARD for excellent thermal resistance 1 Resistant to breakage Stable slotting and trochoid machining with a chip pocket groove and large core thickness Chip pocket for smooth chip evacuation during slotting applications Excellent chip control 2 x (In-house evaluation) Improved chip evacuation Core thickness comparison performance comparison (In-house evaluation) 18 % Cutting distance (mm) 2,200 2,000 1,600 1, Approx. 5 x The cutting distance without defects Defects Competitor A Decreases tool deflection and achieves excellent machining precision 0 Competitor B Cutting conditions: n = 1,200 min -1, Vf = mm/min, ap = mm Machining diameter ø 8 mm, slotting, wet Workpiece: Inconel 718 2

4 2 Achieves long tool life and stable machining The MEGACOAT HARD coating technology delivers the highest hardness and thermal resistance in Kyocera s PVD coating arsenal Coating film property Wear resistance evaluation (Cutting distance 975 mm) Hardness (GPa) TiCN TiN TiAIN MEGACOAT HARD MEGACOAT (Wear 0.11 mm) Wear 1/2 or smaller Competitor C (Wear 0.28 mm) ,000 1,200 1,00 Low Oxidation onset temperature ( C) Oxidation resistance High Cutting conditions: n = 1,200 min -1, Vf = mm/min, ap = mm Machining diameter ø 8 mm, slotting, wet Workpiece: Inconel Decreased burr High sharpness with a large rake angle Burring during slotting (Inconel 718) Competitor D Competitor E Cutting conditions: n = 1,200 min -1, Vf = mm/min, ap = mm Machining diameter ø 8 mm, wet Chattering resistance Improved chatter resistance with irregular pitch and varible helix design surface in trochoidal machining (Inconel 718) Chatter occurance β α θ1 θ2 α β θ1 θ2 Irregular pitch Variable helix Competitor F (Equal lead) Reduces chatter in the cut Dampening effect Decreased chattering with high quality surface finish Cutting conditions: n =1,200 min -1, Vf = 300 mm/min, ap = 20 mm Machining diameter ø16 mm, Slot width 20 mm, wet 3

5 End mills (Short depth of cut) ødc øds h5 l L Description Availability (Unit: mm) Outer diameter Outer diameter Corner R Flute length Shank diameter Overall length flutes ø Dc tolerance r l ø Ds L Z R R R R R R R R R R R R R R R R R R R R R R R R Available

6 Cutting conditions Machining application Workpiece material Application Depth of cut ap ae (mm) Carbon steel / Cast iron 1.5Dc 0.1Dc Dc ø12 : ap 1.0Dc Dc ø12 : ap 12 Outer diameter Dc (mm) ø 6 ø 8 ø ø 12 ø 16 ø 20 6,900 5,200,0 3,00 2,600 2,0 Feed rate (mm/min) 1,500 1,500 1,00 1,00 1,300 1,0 5,600,200 3,300 2,0 2,0 1,700 Feed rate (mm/min) ap ae Alloy steel 1.5Dc 0.1Dc Dc ø12 : ap 1.0Dc Dc ø12 : ap 12 5,300,000 3,200 2,700 2,000 1,600 Feed rate (mm/min) 1, ,200 3,200 2,500 2,0 1,600 1,300 Feed rate (mm/min) Pre-hardened steel (30~5HRC) 1.5Dc 0.05Dc ap 0.5Dc,600 3,500 2,0 2,300 1,700 1,300 Feed rate (mm/min) ,700 2,0 2,200 1,900 1,00 1,0 Feed rate (mm/min) ap Stainless steel 1.5Dc 0.05Dc ap 0.5Dc,0 3,600 2,900 2,00 1,0 1,00 Feed rate (mm/min) ,500 2,0 2,200 1,900 1,00 1,0 Feed rate (mm/min) Titanium alloy 1.5Dc 0.1Dc Dc ø12 : ap 1.0Dc Dc ø12 : ap 12,200 3,200 2,500 2,0 1,600 1,300 Feed rate (mm/min) ,700 2,0 2,200 1,900 1,00 1,0 Feed rate (mm/min) Heat resistant alloy (Inconel 718, etc.) 1.5Dc 0.05Dc ap 0.5Dc 2,00 1,0 1,00 1, Feed rate (mm/min) ,600 1, Feed rate (mm/min) Coolant is recommended for stainless steel, titanium alloy, and superalloy KYOCERA Corporation TZE00086