It is inevitable to prevent heat from generating over long, continuous runs. Both external and

internal heat sources could influence the components (i.e. motor, ballscrew, bearing) and cause

deformation which leads to bad accuracy.

Research has shown 70% of the error was caused by thermal displacement. However, the requirement of higher spindle

speed has become a trend recently, which could generate more heat at the same time. Take a look at how TAKUMI resolves

this contradition. Let us tell you how to minimize the heat from generating and compensate thermal expansion.

There are several ways to solve thermal displacement:

(1) Heat coolant

(2) Spindle thermal displacement compensation

Heat coolant-cutting fluid cooler

The cutting fluid can take away the heat that generated by the machine

process. However, the temperature of cutting fluid will increase during

machining process. The coolant chiller could reduces the temperature of

the cutting fluid before it is circulated through the machine. It could not

only increase the life of the tool but better surface finish by stabilizing the

coolant.

We installed our cutting fluid cooler in TAKUMI U800 (5-Axis Machining

Center), the result of the comparison between before spraying fluid and

with cooler shows that there is only 1μm deviation in Z-axis with cooler.

The cooler has effectively reduces the deviation and leads to excellent

accuracy of the workpieces.

Heat coolant-spindle oil cooler

Spindle oil cooler greatly reduces the possibility of thermal displacement while spindle runs at hight speed. It effectively

maintains the spindle oil temperature and prevent accuracy from being affected.

TAKUMI H series (High Speed Bridge Type Machining Center) and U series (5-Axis Machining Center) offers spindle oil cooler as standard. Our test result have proven that the temperature of the spindle oil is controlled within ±0.2℃. Stable oil

temperature reduces part variation caused by thermal changes and ensures high precision.

If you have high requirement on accuracy such as mold making applications, but not interest in these two series, welcome to share you contact information. We are glad to customize your machine.

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