Page 49 - Threading_Handbook

Tools with High Pressure Coolant Systems
THREAD TURNING
Suitable for External Threading

Threading tools with high pressure coolant systems (high pressure coolant is described in
chapter 2.13) consist of a square shank according to the ISO standard and a unique cooling
system (JHP) designed and patented by ISCAR.

The JHP system is composed of a static housing and telescopic tube to direct the coolant
exactly to the cutting edge of the insert. The telescopic tube is embedded in the housing
skews - right and left according to the working direction of the tool (see drawing below). The
advantage of this system is that there is no need to detach the housing of the tool when
changing an insert. This reduces setup time.

Central Coolant Direction
4° 8° (rotation adjustment)

The use of high pressure coolant is growing as manufacturers are looking for ways to reduce
cutting time, improve machining process reliability and achieve longer tool life.
ISCAR’s JHP tools provide all these advantages. Shorter chips are easily managed and do
not tangle around the work piece or machine parts, and therefore, there is no need to stop
the process frequently. With conventional cooling, the chips usually prevent the coolant from
reaching the insert rake face in the cutting zone. The coolant stream of the JHP tools is
directed precisely between the insert rake face and the flowing chips. This results in longer
tool life and a much more reliable process.
Changing or mounting inserts is done by pressing the telescopic tube in a backward
direction. After indexing the insert cutting edge, starting the coolant will extract the tube
automatically to its operating position.

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