Boston Saw & Tool – Tool TipsInfo to Help You Improve Performance and Extend the Life Of Your Valuable Solid Carbide and Carbide Tipped Router Bits!ROUTER BIT SELECTION 1) TOOL MATERIAL Solid Carbide: Primarily used in CNC operations. Material provides best rigidity and long tool life. Carbide Tipped: Incorporates the wear resistance of carbide and the toughness of a HSS body-mainly hand held. HSS: Primarily used in hand routing. Material provides a tough body and sharper cutting edge. Good in CNC. 2) FLUTE GEOMETRY Straight flute: Offers a neutral cutting action - highest force Upcut flute: Provides the best surface finish and allows for good chip extraction. May cause part lifting if vacuum or fixturing is not sufficient. Downcut flute: Provides a downward force which helps eliminate part lifting. Chip rewelding MAY occur if there is no space below the part for chip expansion. Compression: Used for laminated materials, produces a good top and bottom finish on the part. 3) NUMBER OF FLUTES Single Flute: Allows for larger chiploads in softer materials Double Flute: Allows for better part finish in harder materials. Multiple Flutes: Allows for an even better part finish in harder materials. NOTE: As the number of cutting edges increase, your feed rate should increase to prevent burning and premature tool dulling. ![]() OPTIMIZING SPEED AND FEEDS
Note: This should be done in the first sheet of material to prevent tool dulling due to excessive heat. TOOL HEAT If a feed rate is too low heat will be generated causing the cutting edge to break down and dull quickly. To check this, run a nest of parts and stop the spindle. When the spindle has stopped rotating, carefully feel the tool’s temperature. It should be at or near room temperature. If the tool is hot review “Optimizing Speed and Feeds”. TOOL BREAKAGE If a condition arises where multiple tools should break follow these steps to solve your problem:
If you have to contact Boston Saw & Tool for technical support, have the following information:
COLLETING 1) COLLET LIFE SPAN Collets have a life span of 3 months if used 8 hours a day. Replacing the collets will ensure your operation runs consistently and prevents tool breakage. When inserting a tool into the collet make sure the flute fadeout does not enter the collet. This will cause run out and potentially lead to tool breakage.To ensure proper clamping the tool shank should fill, at the minimum, 80% of the depth of the collet. If this cannot be achieved, use a collet life plug to ensure a proper clamping effect. 2) COLLET MAINTENANCE Cleaning is an essential part of collet maintenance. As material is cut it causes the collet, tool holder, collet nut and spindle to become dirty. This causes your tool to cut in an elliptical fashion which will decrease tool life and cause inconsistency in your operation. Collets, tool holder, and collet nut should be cleaned daily using the Rust Free solvent and a brass brush. Refer to the critical areas diagram to see which surfaces must be clean. 3) CLEANING INSTRUCTIONS
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