MILLING TOOL AND PROCESSING METHOD USING SAME
PROBLEM TO BE SOLVED: To provide a milling tool capable of achieving processed surface accuracy equal to that of grinding without imposing any excessive load on the tool, and a processing method using the same.SOLUTION: The milling tool includes a tool body having a roughly cylindrical or disk-like...
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Zusammenfassung: | PROBLEM TO BE SOLVED: To provide a milling tool capable of achieving processed surface accuracy equal to that of grinding without imposing any excessive load on the tool, and a processing method using the same.SOLUTION: The milling tool includes a tool body having a roughly cylindrical or disk-like shape, and a plurality of cutting parts 10 arranged at predetermined intervals in a peripheral direction in the outer peripheral part of one end part of the tool body. The cutting part 10 has a main cutting edge 11 and a sub-cutting edge 12 for cutting a target material. The main cutting edge 11 is located more outside in a radial direction than the sub-cutting edge 12, and the sub-cutting edge 12 has an angle in which a cutting edge angle θb to a plane orthogonal to the center axis of the tool body is an elevation angle directed to the outside in the radial direction. By using this milling tool to process the target material to be flat, processed surface accuracy equal to that of grinding can be obtained.SELECTED DRAWING: Figure 2
【課題】工具に過大な負荷をかけることなく、研削加工と同等の高精度な加工面精度を得ることができるフライス工具、及びこれを用いた加工方法を提供する。【解決手段】フライス工具は、概略形状が円筒状又は円盤状をした工具本体と、少なくとも、工具本体の一方端部の外周部に、周方向に予め定められた間隔で設けられた複数の刃部10とから構成される。刃部10は、被削材を切削する作用を成す主切れ刃11及び副切れ刃12を有し、主切れ刃11は、副切れ刃12より半径方向外側に位置し、副切れ刃12は、工具本体の中心軸と直交する平面に対する切れ刃角θbが、半径方向外側に向けた仰角となる角度を有する。このフライス工具を用いて被削材を平面加工することにより、研削加工と同等の高精度な加工面精度を得ることができる。【選択図】図2 |
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