Основной каталог Kyocera 2021 - 2022 - страница 258

Toolholders for back turning - TKFB insert

How to select back turning toolholder hand

• Machining near the guide bush is possible

Right-hand Narrow cutting edge width of TKFB12R15005M Guide bush Optimum for small parts and high precision machining

EE

The workpiece burr does not contact the guide bush.

Burrs

• Machining with a distance from guide bush
• Good chip control due to large space between the guide bush and the tool.

Left-hand Excellent chip control in roughing and finishing (plural passes)

• Stable accuracy of external diameter dimension:
• When burrs occur, if a left-hand toolholder is used, it is not necessary to return workpiece into guide bush in finishing.

Guide bush Also, left-hand toolholders prevent guide bush wear caused by chip biting.

Workpiece movement and tool hand selection - in roughing and finishing

Roughing Workpiece position after roughing Finishing

Burrs Burrs

Right-hand

Guide bush

Burrs Burrs

Left-hand

Guide bush

* Good dimension accuracy: If a left-hand toolholder is used, burrs on workpiece generated in roughing do not damage the guide bush in finishing.