Page 5 - JET_HP_CATALOG

Engineered for
Performance
HIGH PRESSURE
The usage of high pressure coolant is growing 120 – 400 bar – Ultra high pressure (UHP) Economical TURNING
as manufacturers are looking for ways to reduce Minor increase in tool life compared to HP range.
cutting time, improve machining process reliability ISCAR standard JHP tools were designed for
and achieve longer tool life. up to 300 bar coolant pressure.
ISCAR’s JHP tools provide all of these advantages. Ultra high pressure coolant is usually implemented
for machining titanium and heat resistant
The coolant channels of the JHP tools feature outlets alloys when there is a need for very small chips
very close to the cutting edges, thus gaining the and higher machining rates.
following advantages: ISCAR has provided hundreds of special tools
• Shorter machining time – The cutting speed may be featuring ultra high pressure coolant capability, for
increased by up to 200% when machining titanium various customers and applications.
and heat resistant alloys. • Pressure vs. Flow
• Longer tool life – tool life increases by up to 100% Each JHP tool is designed to work at a certain
not only on titanium and heat resistant alloys, but flow rate, depending on the pressure. The flow
also on stainless and alloy steels. rates are listed in the catalog pages for each tool.
• Improved chip control – even on the most ductile and The user should verify that his pump can supply
problematic materials, small chips can be obtained. the required flow in order to achieve the optimal
• Very effective cooling down of the cutting edge, results. The pump data sheet will usually list the
which reduces sensitivity to heat fluctuations maximum flow rate for each pressure range.
• Safer and more stable process • Chips and Pressure
The coolant flow will start to break the chips at a
JHP tools provide advantageous performance also certain pressure, depending on the specific tool
when conventional pressure is applied.
and the workpiece material. If the chips are not
breaking, the pressure should be increased until
General Information chip control is achieved. Above this pressure, as it
• Pressure Ranges is increased, the chips become smaller and
Up to 30 bar – Low pressure (LP) provides smaller. It is possible to control the size of the
improvement in tool life. Usually will not have an chips by modifying the pressure in order to
effect on chip control. achieve the desired chip size.
30 – 120 bar – High pressure (HP) the most • ISCAR can provide different specially tailored tools
commonly used pressure range used with
JHP tools. for ultra high pressure coolant.
Increase in tool life, increase in cutting speeds,
improved chip control.

Recommended Speed Correction for High Pressure
Coolant vs. External Low Pressure Coolant
Material RoughTurning Finish Turning Grooving Contouring with Full
Radius Insert
Titanium Ti64
80 bar + 50% + 70% + 70% + 100%
150 bar + 75% + 120% + 100% + 130%
300 bar + 100% + 200% + 120% + 150%
Inconel 718
80 bar + 40% + 60% + 50% + 50%
150 bar + 60% + 90% + 75% + 80%
300 bar + 80% + 110% + 100% + 100%
Steel
80 bar + 50% + 50% + 100% + 50%
150 bar + 50% + 50% + 100% + 50%
300 bar + 50% + 50% + 100% + 50%
Stainless Steel
80 bar + 50% + 50% + 100% + 50%
150 bar + 50% + 50% + 100% + 50%
300 bar + 50% + 50% + 100% + 50%
Example: If current rough turning cutting speed of Ti64 is 30 m/min, when JHP tool is used
with 150 bar coolant, cutting speed can be raised up to about 55 m/min.

5