Development of vibratory OD-blade slicing method with high efficiency and long tool life for composite materials

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Composite materials are expected to be effective for use in mechanical and structural parts, such as airplane parts. Carbon Fiber Reinforced Plastics (CFRP) are frequently used. When CFRP are used for mechanical structural parts, the need to slice or drill them is inevitable ; an abrasive machining method by OD-blade has been widely used to slice them. However, one drawback of the OD-blade slicing method is low tool life due to the hardness of carbon fiber. This study was performed to establish and examine the practical applicability of the vibratory OD-blade slicing method to slice composite materials, such as CFRP. The obtained results are follows. (1) The slicing force and tool wear in vibratory slicing remarkably decreases compared with in the conventional slicing. (2) The slicing accuracy such as the surface roughness, waviness and edge chipping in the vibratory slicing method is similar to them in the conventional slicing method.