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一、分析阅读Machining crowned work with aflycutter in a millIn the process of machining extrusion dies,I found that they worked better if the faces ofthe die block were crowned slightly.The faceon one type of block is approximately 2 3/4 in.wide and 41/4 in.long,and the crown at thecenter is 0.010 in.higher than the edges.To ma-chine this clown required that we generate aradius of 225 3/4 in.on the faces of the dieblocks,which we accomplished on a verticalmilling machine set up as shown.The block is held in a machine vise,and aflycutting tool is mounted in the spindle.Til-ting the spindle as indicated causes the flycut-
一, 分析 阅读 Machining crowned work with aflycutter in a mill In the process of machining extrusion dies, I found that they worked better if the faces of the die block were crowned slightly. The faceon one type of block is approximately 2 3/4 in. and 41/4 in. long, and the crown at the center 0.010 in.higher than the edges. To ma-chine this clown required that we generate aradius of 225 3/4 in. the the faces of the dieblocks, which we which on a verticalmilling machine set up as shown. The block is held in a machine vise, and aflycutting tool is mounted in the spindle. Til-ting the spindle as indicated causes the flycut-