The SMART Anti-Vibration Tool Holder Series Best Suited for Deep Hole Boring (Part 2) - BIG DAISHOWA
Optimal SMART Anti-Vibration Tool Holder Series for Deep Hole Boring (Part 2)
SMART Anti-Vibration Integrated Type for Finishing
There are three types of anti-vibration products for boring: integrated boring head type, integrated shank type, and extension type. In addition to differences in application, their anti-vibration performance also varies.
Figure 1 shows the EWN fine boring head integrated type, where the anti-vibration mechanism is directly integrated inside the boring head. Consequently, the distance from the vibrating cutting edge to the anti-vibration mechanism is very short. Vibration generated at the cutting edge is transmitted to the anti-vibration mechanism over the shortest distance, allowing it to be rapidly attenuated.
Regarding the length-to-diameter ratio (L/D), depending on the rigidity of the machine tool and workpiece, it can reach a maximum of 7~8 times. Compared to the integrated shank type and extension type, the anti-vibration performance is superior, allowing an L/D ratio increase of 1~2 times under the same cutting conditions.
Key Features:
SMART Anti-Vibration Integrated Type for Roughing
The SW boring head for rough boring (Figure 2) also integrates the anti-vibration mechanism within the boring head, providing high anti-vibration capability similar to the finishing anti-vibration boring head.
Performance Characteristics:
Integrated Shank Type and Extension Type
Figure 3 shows the integrated shank type, where the anti-vibration mechanism is built into the front-end interface section.
Important Note:
Large Diameter Boring Machining
For boring diameters of ⌀200mm and above, there is a dedicated boring tool system for large diameters, where boring heads and counterweights are mounted on a yoke-shaped frame.
Design Innovation:
Boring Bars for Lathes
The SMART Anti-Vibration Boring Bar for lathes (Figure 5) adopts a structure where two "high-density dampers" are inserted from the rear, bringing the cutting edge closer to the anti-vibration mechanism.
Its anti-vibration capability is the same as the products described earlier, with a maximum L/D ratio reaching 8~9 times.
A flat surface for side-lock clamping is designed, allowing it to be clamped like a standard boring bar, eliminating the need for a dedicated holder.
A rich selection of insert seats is available to handle various machining tasks. Furthermore, HSK and Capto types for multi-tasking machines were added last year.