Although be when the spare parts that machines microcosmic measure and spare parts feature, what resonance also may cause cutting tool is secondary vibration and flutter. Nevertheless, machine with macroscopical measure (its model consequence is workpiece surface bright and clean degree become poor) different is, flutter is bigger to harm of fine and flimsy miniature cutting tool. Cutting cutting tool and True Tool Innovations of dentistry tool manufacturer (TTI) the applied engineer Brian McKahan of the company points out, "The biggest question is, flutter can make miniature cutting tool damages completely normally. " the requirement that this company noticed to cutting tool flutter is reduced as far as possible in be being machined imperceptibly, open the 4 chamfer miniature that gave out chamfer of a kind of alterable helix to establish milling cutter. This cutting tool can pass the cutting act that produces a kind of different situation, restrain the resonance of cutting tool. The helix angle that this kind of miniature establishs milling cutter changes from 1 ° 6 ° , accordingly, with common establish milling cutter each tooth and next tooth be apart 90 ° are different, this kind establishs milling cutter the span between each helix chamfer is unequal. McKahan explanation says, "Each tooth uses power from different way, till workpiece material is excised. " when processing certain work data, this kind differs graduation design can eliminate vibration completely, and when processing another some of data, also can reduce vibration substantially. "We discover, when this kind of cutting tool is processing special alloy and aviation data really very useful. " besides can reduce vibration and prolong cutting tool life beyond, miniature of chamfer of this kind of alterable helix establishs milling cutter to still can achieve better appearance bright and clean degree, raise material purify rate 15 ％ - 30 ％ . Of brand of this kind of TTI establish milling cutter diameter for 0. 8 - 3.
2mm, can undertake according to user demand custom-built. CNC Milling
CNC Machining