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ISO 30 -27mm Arbor Tool Holder
Material 20CrMnTi stainless alloy is ideal for obtaining material stability, resist corrosion and to achieve the desired hardness of RC 58-60. Mn (Manganese) and Ti (Titanium) are essential elements needed to stabilize the grain structure of the steel. Without these elements the steel grain structure can crack, move and warp over time with terrible consequences to the runout or stability. Additionally Cr (Chromium) is added to help in resisting corrosion. Lastly the material is case hardened to 56-60 HRC to match the hardness on the mating surfaces of the spindle. If these hardnesses are not matched the holder and or spindle can have premature wear. With case hardening the center of the holder stays softer around 30 HRC to handle the repeated clamping forces changing tools without cracking. Precision and Balance Balancing helps with vibration which prevents premature bearing failures in the spindle. Balancing was performed on a Haimer machine to meet the G2.5 specification for 30K rpm. Precision decreases runout which causes chip thickness to vary over the tool rotation and therefore the tool experiences uneven forces during each cutting flute period. This will force a reduction in feedrate and tool life because one flute is doing more work. Shipping is Fast and Additional items ship FREE! |
Warnings
Follow any and all manufacture's safety guidelines before using this tool. Always use eye and ear protection along a proper respirator and ventilation. Do not exceed maximum recommended RPM settings. Always visually inspect tools and never use anything that is suspected to be damaged.