HSD ES327, Руководство по сборке, Страница: 73 / 122

6 Operation and regulation
HSD S.p.A. © - 0106h03a.fm100713
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
During machining operations, avoid all contact whatsoever between the non-cutting
rotating parts and the piece being machined;

The tool holder cone seating must always be protected against the entry of impurities:
use a suitable plug or a tool holder cone;

At the end of the working day, always remove the tool holder cone from the
electrospindle to avoid sticking. Close the tool holder housing using a clean tool holder
cone at ambient temperature;

Do not rotate the electrospindle without a tool holder inserted. In particular for HSK
models, rotating the electrospindle without a tool holder will upset the balance and
operation of the collet.
6.6 Tool
At the maximum rated speed of the electrospindle, the tools must have a dynamic balance quality
grade G = 2.5 or better (standard ISO1940).
.
Depending on the type and quality of the machining operation to be performed, and the material
used, it is the users responsibility to operate at lower speeds (NEVER HIGHER) than those
specified by the tool manufacturer.
When selecting the tool to use, the following recommendations must be taken into consideration:

Always use tools with optimum sharpness qualities and correctly tightened in the relative tool
holder.

Never use deformed or damaged tools or those with missing parts or not perfectly balanced.

Always make sure that all the surfaces are unmarked and perfectly clean before inserting the
tool in the relative collet.
The essential requisites for using high-speed tools are:
- compact, short and light tools
- precise, with any inserts correctly fitted with a high degree of safety
- balanced and symmetrically coupled with the tool holder
- with cutting edges near to the rotation axis
RESPECT THE MAXIMUM REVOLUTIONS PER MINUTE (rpm) INDICATED BY
THE TOOL MANUFACTURER.