Vibration analysis of equipment/tools in use is performed on-site. For details, please refer to “Vibration Analysis and Diagnosis service”. Hammering investigation is conducted in advance to design the optimum damper to maximize the damping effect. This solves machining chatter, improves machining efficiency, and enhances quality.
This is the point!
Optimal damper design for each tool
Excellent!
Hammering test (on site) – Investigation the vibration characteristics of the equipment/tools used with hammering.
Design – Design of the optimal damper based on investigation results.
Chatter suppression effect
Good!
Comparison of dynamic stiffness near the cutting edge
Compliance (springiness): reduced vibration at all frequencies.
Higher efficiency with damper
Good!
Work material
JIS S45C / EU EN C45 (1.0503)
Tool diameter
ø115 mm
Cutting conditions
Spindle speed: n = 500min-1 Feed: f = 0.10~0.25 mm/edge
Number of edges
1-6 cutting edges
Machining allowance
ø0.4 mm
Vibrations are caused by increased feed and high number of teeth and therefore, needs dampening. A boring holder equipped with damper enables more efficient processing than before.
Development / product concept
“Current status and challenges”
With the diversification and generalization of workpiece types, there is an increasing need for machining of difficult-to-machine materials and long tools with high efficiency.
One of the problems faced by production sites is the occurrence of regenerative chatter due to machining vibration, resulting in deteriorated machining accuracy, cutting edge defects and unachieved cycle times.
“Development points”
The “Damper Holder” demonstrates a high vibration suppression effect by designing the optimum damper for the equipment and tools actually used, while also improving the machining accuracy and efficiency. It is also expected to extend the life of cutting edges due to chattering.
Processing example
Tool used
Damper holder
Work material
JIS S45C / EU EN C45 (1.0503)
Tool diameter
ø115 mm
Cutting conditions
Spindle speed: n = 500 min-1 Feed: f = 0.10 mm/rev
Number of edges
3
Machining allowance
ø0.4 mm
After eliminating chatter, roundness improves!
Without damper
With damper
Product specification
Tool specification
Tool name
Damper holder
Applicable work
No restrictions on work material
Coolant
Internal lubrication available
External/internal mounting of damper can be selected to accommodate tool shape, weight limitation, workpiece interference, etc.