The milling cutter that is used at cutting off workpiece is to curium a milling cutter. To increase the tigidity of arbor, curium piece milling cutter should stand by main shaft as far as possible or suspension is installed; Do not install key between milling cutter and arbor, the attrition force between two side end panel drives support arbor gasket and milling cutter milling cutter rotates, key can be held inside the gasket that stands by feed nut, become loose with preventing milling cutter effectively; The radial that tooth should assure after milling cutter is installed and axial circle are jumpy do not stipulate the value just can be used more than.1, hold clip with flat-nose pliers. Workpiece answer in the clamping force direction on gate parallel at groovy flank (the fore-and-aft parallel of clamping force direction and chamfer) , avoid workpiece to clip milling cutter.2, with pressing plate outfit clip cuts off workpiece, this law suits to machine large work to reach its of board makings cut off. The mat iron below pressing plate should workpiece of summary prep above, should use fixed position conditionally to rely on iron to locate. Of workpiece cut seam should choose in upper part of T form chamfer, lest injure workbench mesa. Additional, suitable mill is used more when cutting off thin and long workpiece, make the milling component of force of perpendicular direction points to workbench face.3, cut off milling craft. The hand should be used to move feed as far as possible when cutting off, feed speed wants even. When if need,using motor-driven feed, be cut or be cut or need a hand to move feed, feed speed shoulds not be too fast, and locking of unused feed orgnaization. Cutting steel when, should sufficient and pouring cutting fluid.1, the choice of milling cutter. Step face is comprised by two mutual and perpendicular plane, these two plane are by same machine the different cutting blade of milling cutter at the same time come out, two plane are main assure by cutting tool.① uses face of step of mill of 3 blade milling cutter on horizontal milling machine when, because of milling cutter sheet side gets power, can appear phenomenon letting a knife. Answer to stand by milling cutter main shaft installation, use other one aspect of the matter of hanger bearing arbor, in order to raise machining complex tigidity. D of milling cutter external diameter should accord with the following condition, namely D ＞ 2t+d. In type, t is step deepness (Mm) ; D is sleeve overall diameter (Mm) . Make the width B of milling cutter is more than step width E as far as possible. If afore-mentioned conditions all are satisfied, the choice uses up external diameter of hidebound milling cutter.When the step range with ② milling vertical plane is wider and narrower horizontal, can use vertical milling cutter to be on vertical milling machine milling, also can use install on horizontal milling machine all-purpose the methodological milling that establishs milling head; When the step range with milling vertical plane is narrower and wider horizontal, can use milling of face milling cutter.2, the operation measure of mill step. If milling is odd when double step, after workpiece has been installed, but first actuate milling cutter makes milling cutter rotates, shuttle table makes workpiece stands by milling cutter, make blade of cutting of milling cutter end panel small brush workpiece flank, write down next scale reading, fore-and-aft quit work, use dial workbench transverse shift is apart from E, adjust T of dimension of on any account, begin the chance to extricateoneself from an awkward position of milling a side. Mill is over after a side step, use dial to move transverse workbench A of a distance (A=B+C) , step of milling other a side. If chance to extricateoneself from an awkward position is later, should along the flank that approachs steps leading up to a house statified milling. If batch milling the step of two side semmetry, can use two 3 blade milling cutter to combine treatment.
