Technical information on reaming Poor surface Check material removal Improve cooling (connection, pressure, quality) Lower feed rate, increase ra

Technical information on reaming Poor surface Check material removal Improve cooling (connection, pressure, quality) Lower feed rate, increase rake angle Select other chamfer geometry (insert / reaming tool) Check axial position of indexable insert Chatter marks Check concentricity (workpiece / tool) Enlarge backtaper Retraction marks Improve cooling (connection, pressure, quality) Check concentricity (workpiece / tool) Enlarge backtaper Eccentric bore Check clamping of workpiece Check dimension Check concentricity (workpiece / tool) Check axial position of indexable insert Conical entry Lower feed rate Check concentricity (workpiece / tool) Check backtaper Check concentricity of tool Conical bore Check concentricity (workpiece / tool) Check backtaper Deformed bore Check clamping of workpiece Off-center bore Select other chamfer geometry (insert / reaming tool) Check axial position of indexable insert Diameter too large Check concentricity (workpiece / tool) Reset reamer Lubricants To achieve maximum service life and the best hole quality, adhere to the following guidelines An internal coolant supply should preferably always be used. Only use external cooling with reaming tools R 4060 up to 0 20 reaming depth 1 x D over 0 20 reaming depth < dimension l4 (= length of guide rail) Reduce cutting data. With steel, aluminum, cast iron use water-soluble oils with min. 40 % mineral oil. Concentration oil solution with min. 6-8 % concentration Filtration 30-50 pm Quantity min. 0.5 l/min/mm tool diameter (e.g. reaming tools 0 10, minimum quantity 5 l/min.) Concentricity Rotating application (machining center) max. deviation 0.01 mm Recommendation hydraulic collet ch precision collet Setting device See page C 158. C 224 WALTER Valenite Technical information Drilling