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相贯线锥柄铣刀(见下图)是用于加工自行车车架管端相贯线的先进工具.铣刀的切削部分直径D=28～40mm,分五种规格.刀齿为等高尖齿均布在环形的端面上;刃倾角λ=3°～5°切削刃长度约为3mm.随着铣刀直径的增大,切削刃长度可适当加大到6mm;铣刀外圆倒锥度为1:50,以形成30′的副偏角,前角6°～8°,齿槽角55°,齿顶留有0.1mm的刃带.如果将切削部分展开,又象是一把有效长度为πD的锯条.这种铣刀使用方法简便,中心定位准确,可加工轴线垂直相交的两圆柱相贯线,也可加工正圆柱和斜置正圆柱的相贯线.由于切削齿数
Intersecting line taper shank milling cutter (see below) is an advanced tool used for processing the intersecting line of the frame of the bicycle frame pipe.Motor cutting part diameter D = 28 ~ 40mm, divided into five sizes. The tines are evenly distributed on the annular end face; the cutting edge inclination λ = 3 ° ~ 5 ° and the cutting edge length is about 3mm. As the cutter diameter increases, the cutting edge length can be suitably increased to 6mm; Taper 1:50 to form a 30 ’off-angle, front angle 6 ° ~ 8 °, the cogging angle of 55 °, the addendum left margin of 0.1mm.If the cutting part of the deployment, but also like a The effective length of πD saw blade.This cutter is easy to use, the center positioning accuracy, Machinable intersection of the two axes perpendicular to the intersection of the vertical axis, but also can be processed and the positive cylinder straight column oblique intersecting line due to the number of cutting teeth