Troubleshooting Carbide End Mills | Carbide Drills | Carbide Reamers   Problem Cause Solution Chatter High cutting speed Feed rate too low Workpiece movement Toolholder rigidity Tool rigidity Lower RPM or increase feed rate Increase feed rate Tighten workpiece rigidity Tighten toolholder or reduce float Use shorter tool, place further up       holder Tool Wear/ Chipping Incorrect feed rate Incorrect speed Poor hole condition Abrasive material Poor chip evacuation Poor coolant Insufficient coolant Workpiece alignment Excessive stock removal Increase feed rate (typically) Reduce speed (typically) Work-hardened hole; change drilling       type Use proper coolant, coated reamer Use/increase coolant, use helical       reamer Replace coolant or correct mixture Increase coolant volume Use bushing, floating holder, lead       chamfer Use larger diameter starter drill Tool Breakage Incorrect feed rate Incorrect speed Tool wear Bottoming of hole Coolant conditions Insufficient stock removal Poor set up Excessive stock removal Increase feed rate (typically) Reduce speed (typically) Sharpen or replace reamer Adjust stop depth, check preset Increase, replace, or correct coolant Use smaller diameter starter drill Use bushing, floating toolholder Use larger diameter starter drill Poor Finish Feed rate too low Insufficient stock removal Poor hole condition Poor coolant Insufficient coolant Increase feed rate Use smaller diameter starter drill Work-hardened hole; change drilling       type Replace/correct coolant mixture Increase coolant volume Hole Tolerance Workpiece alignment Incorrect tool size Material shrinkage Tool wear Toolholder runout Use bushing, floating toolholder Check diameter of tool Adjust diameter for shrinkage; more       coolant Sharpen or replace tool Adjust or replace toolholder

Tungsten ToolWorks is a manufacturer of customized (special) solid carbide cutting tools, sold worldwide under the Tungsten ToolWorks brand name. Products include solid carbide end mills, drills, reamers, burrs, micro tools, sub-miniature tools, micro tools, engraving tools, boring tools, keyseat cutters, burrs, slitting saws, carbide cylinders, countersinks, routers, radius mills, CBN tools, compression tools, and more. Technologies include SmoothCoat PVD hard coatings, SmoothGrind polished cutting edges, SmoothEdge prep and hone, and SmoothContricity shrink fit ready shanks. Coatings include D2 CVD diamond, D1 PVD amorphous diamond, TA TiAlN, AT AlTiN, TN TiN, TC TiCN, and A1 TiB2. Industries using our products include aerospace, semiconductor, die & mold, micro (nano) machining, woodworking, medical, consumer electronics, automotive and more. Workpiece materials to be drilled, milled, reamed, routed, engraved and more include titanium (6Al-4V, 5553), stainless (303, 304, 316, 410, 420, 440C, 15-5, 17-4, 13-8, 316L), tool steels (A2, D2, H13), general steels (1018, 1020, 4140, 4340, P20), Inconel (625, 718), cast iron, non-ferrous materials including aluminum, copper, brass, bronze, wood & plastics, CFRP (carbon fiber reinforced plastic), graphite, composites, fiberglass, and more. Tungsten ToolWorks is a Tool Alliance company.

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