b'Finish Strong bunch of holes day in and day out, it would really benefit them to en-rich their coolant so that the con-He said if a shop is reaming acentration was more like 12% to small number of holes, coolant con- 13%, Cline said. That will increase centrations in the 5% to 7% rangethe life of the reamer head because might be acceptable. you have more lubricity and more But if theyre going to ream aoil within the emulsion mixture to Cool Titaniumhelp remove some of the heat and provide a reduction in friction.drilling titanium As for brands, he recommends coolants with high-heat, high-pres-FOR EACH TITANIUM sure additives, which he said yield ITS DRILL better tool life than more economi-cal brands that lack these additives.Cline also pointed out that cool-THATS NEW! ant-throughoptionslikeBayo T-Ream extend tool life by deliv-Two specic geometries: PTC for pure titanium ering coolant right to the cutting and ATC for titanium alloys edges. In addition, he said, theseDiameter from 1.0 mm to 1/4 options allow reaming at muchSpecially designed cooling concept higher feed rates and are better when it comes to evacuating chips. The latter, he said, translates into YOUR BENEFITS! better surface finishes because chips arent staying around to rubMaximum drilling speed against part surfaces. Excellent surface quality Process reliability Finer Finish Up to 3 times longer tool life Another way of improving sur-face finish is to add more cutting teeth to a reamer.If I take a four-flute reamer and make it an eight-flute reamer, Ive got more cutting blades removing the same amount of material, Dun-neback said. So Im going to bur-nish a lot more, and Im going to get about the author Mikron Corp. Monroe William Leventon Monroe, CT 06468 is a contributing [email protected] writer for CTE. www.mikrontool.com Contact him at 609-920-3335 or [email protected] 2023Reaming.indd 38 8/15/23 3:14 PM'