Our factory uses adjustable floating reamer for the finishing of φ20～φ120mm holes of the parts. Its main cutting edge back angle value is basically the same as that of general general tools, and the surface roughness of the workpiece can reach R_α1.6. When the φ240～φ260mm hole is reamed, a serious vibrating knife is generated, and the surface roughness of the workpiece cannot meet the requirements of the drawing. After analysis and research, the main reason for the vibration knife is found, that is, the geometric parameters of the back angle of the main cutting edge of the tool must be improved. Through the actual production test, it is proved that the value obtained by the calculation method, the back angle of the main cutting edge of the sharpening tool, the surface roughness of the workpiece can reach R_α1.6. The method is shown in the figure.
Zinc Door Handle On Iron Plate
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