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Corner Radius Cutting Tools
The intersection of the major cutting edge and the minor cutting edge creates a nose fillet. The corner radius of the turning tool directly affects the finish of the machined surface. The larger the radius, the smoother the surface. However, if the radius is too large, chatter will occur due to the excessive contact between the tool and the workpiece.
Release time:
2022-04-06
The intersection of the major cutting edge and the minor cutting edge creates a nose fillet. The corner radius of the turning tool directly affects the finish of the machined surface. The larger the radius, the smoother the surface. However, if the radius is too large, chatter will occur due to the excessive contact between the tool and the workpiece. Conversely, if the radius is too small, the tip will become weaker and will wear out quickly. Frequent resharpening is required. The fillet radius is generally 0.3~0.4mm. When using the program programmed according to the theoretical tool nose point to process the surface parallel or perpendicular to the axis, such as the end face, outer diameter, inner diameter, etc., there will be no error. However, when chamfering, tapering and arc cutting, undercutting or overcutting will occur.
When turning the end face and the inner and outer cylindrical surfaces, due to the existence of the tool nose arc, the actual cutting point is the tangent point between the tool nose arc and the cutting surface. When turning the end face, the actual cutting point of the tool nose arc is the same as the Z coordinate of the ideal tool nose point; when turning the outer surface and the inner hole, the actual cutting point and the X coordinate of the ideal tool nose point are the same. Therefore, no tool nose radius compensation is required when turning the end face and the inner and outer cylindrical faces.
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