| 摘要 |
PURPOSE:To improve productivity of a product, by providing a cutting edge in an outer edge part of a main surface, crossing at a right angle with the rotary shaft of a cutter, forming an inner side of the main surface of the cutter to a flank and forcibly contacting the cutter main surface to the edge part of a work. CONSTITUTION:At chamfering work, a rotary disc-shaped cutter 1 is rotated around its rotary shaft, and a cutting edge surface 6 is forcibly contacted to an edge of a work and relatively moved for the work. The cutting edge surface 6 of the cutter, being a plane crossing at a right angle with the rotary shaft of the rotary disc unit 1, can be forcibly contacted to the edge part of the work in wide area. This machining is performed without relieving clearance, and the edge part of the work is not bitten by a cutting edge 3, then burring and chamfering of a certain small dimensional width can be performed. |
