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rough turning tool holder

The rough turning tool holder is a specialized tool for performing initial turning and roughing operations on metal parts, offering high strength under heavy cutting conditions. This tool is typically made of high-speed steel HSS or alloy steel with heat treatment, and its hardness ranges from 50 to 60 Rockwell C. Its overall length is usually between 100 and 250 millimeters, with cross-section dimensions ranging from 12×12 to 32×32 millimeters. The positive or negative rake angle is selected between 5 and 7 degrees depending on the workpiece material. The insert locking mechanism in this model is commonly a high-strength clamping screw or a mechanical clamp.

In the design of a rough turning tool holder, the length-to-cross-section ratio should be less than 5:1 to prevent tool vibration and deflection. This tool can be manufactured in compliance with international standards such as ISO 5608 and ISO 10889. Its typical weight ranges from 0.4 to 1.5 kilograms depending on size. The surface coating can be TiN or TiCN to provide wear and heat resistance up to 750°C. The maximum cutting speed supported by this holder when using a carbide insert is approximately 220 meters per minute.

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