SUMIDIA Coated Drills MDS... SDC SDC Type General Features SUMIDIA Coated SDC type drills for Carbon Fibre Reinforced Plastic (CFRP) employ Sumitomo Electric Hardmetal‘s proprietary multi-step point angle. Combined with a diamond coating, this technology improves the quality of machined surfaces and extends tool life. Series Diameter Point Hole Depth Type Range (mm) angle (L/D) ø2,0 ~ ø4,0 90° Characteristics and Applications MDS□□□□□SDC3 ~3 ø4,851 ~ ø10,0 130° l Excellent drilled-hole quality - Sharp cutting edge shape reduces delamination of fibre layers and burrs. Resistant Alloy Pre-hardened Ti Alloy / Heat Structual Steel Alloy Steel SUMI- Carbon Steel Hardened Steel Stainless Die Steel Tempered Cast iron Cu Alloy DCX20 CFRP * Al Alloy - Continuously changing point angle disperses load placed DIA Steel Steel 45~55 55~60 60~65 HRC HRC HRC on cutting edge and prevents breakage. Grade Coating 〇 ◎ l Long tool life * CFRP (Carbon Fibre Reinforced Plastic) - Use of high-strength diamond coating with excellent adhesion delivers high quality and long tool life. Diameter ø2,0 ~ ø4,0mm Performance Comparison of Machined Surface Finish Excellent Machined Face Quality (Prevents Delamination And Burrs) Diameter ø4,851 ~ ø10,0mm SDC Concurrent Concurrent Concurrent A B C Hole Entrance Hole Exit Tool: SUMIDIA coated drill SDC type, øD=6,375 Competitor A B C´s drill øD=6,35 & øD=6,5 Diameter ø2,0~10,0mm (mm) Work Material: CFRP Cutting Conditions: n = 6.000rpm, f=0,1mm/rev, doc =28mm (Through) Dimensions 3D Type Dry øD ød Cat. No. Dimensions (mm) (mm) Stock Tool Life Comparison L l 2,0 MDS 02000SDC3 m 12,5 Effects of Diamond Coating 2,489 3,0 02489SDC3 m 49 15,0 SDC type Competitor‘s product 3,0 03000SDC3 m 17,5 (After drilling 600 holes) (After drilling 50 holes) 3,3 3,3 MDS 03300SDC3 m 20,0 60 4,0 4,0 04000SDC3 m 22,5 Multi-Drills 4,851 4,851 MDS 04851SDC3 m 76 27,5 5,0 5,0 05000SDC3 m 5,6 5,6 MDS 05600SDC3 m 81 30,0 Margin 6,0 6,0 06000SDC3 m 6,375 6,375 MDS 06375SDC3 m 32,5 83 Flank 7,0 7,0 07000SDC3 m 35,0 7,938 7,938 MDS 07938SDC3 m 90 40,0 Rake Face 8,0 8,0 08000SDC3 m 9,0 9,0 MDS 09000SDC3 m 98 45,0 No delamination More delamination 9,550 9,550 MDS 09550SDC3 m Low flank wear from cutting edge to flank 105 50,0 10,0 10,0 10000SDC3 m Stable diamond layer adhesion prevents delamination. Excellent wear resistance enables high-quality drilling with long tool life. Recommended Cutting Conditions SDC Work Stacked Plates of CFRP, Competitor A's Diamond CFRP Only Co Aluminium Alloys Coated Drill nd (Dry Machining) Carbide Drill øD . (Dry Machining) Hole 0 100 200 300 400 500 600 vc 80 - 120 - 150 40 - 60 - 80 ~ ø 6,0 Tool: SUMIDIA coated drill SDC type, øD=6,375 f 0,05 - 0,08 - 0,10 0,05 - 0,05 - 0,10 Competitor A B C´s drill øD=6,35 & øD=6,5 vc 80 - 100 - 120 40 - 60 - 80 Work Material: CFRP ~ ø10,0 Cutting Conditions: n = 6.000rpm, f=0,1mm/rev, doc =28mm (Through) f 0,05 - 0,08 - 0,10 0,05 - 0,05 - 0,10 Dry ( v c : Cutting Speed (m/min), f : Feed rate (mm/rev), Min - Optimum - Max ) K45