HOLE MAKING
NPA 35/2020
Deep Hole Drilling Heads with Upgraded Features
Highlights
ISCAR-UNITAC is introducing upgraded features for the FINEBEAM family of deep hole drills
The
FINEBEAM line’s upgraded features include:
- Tool improvement
- Expansion of the diameter range
- Expanded variety of inserts
- Updated insert description
Tool improvement features (compared with the former drilling heads version)
- Guide pad protector: to prevent pad breakage during retraction
- Tighter tolerance of the pilot thread: to increase the contact between the head and the tube, and help avoid separation of the head during retraction
- Higher hardness and screw length: to increase and stabilize the clamping feature
- Steel bump added on the body behind each guide pad
- Prevents guide pad breakage while retracting through hole/cross-hole
2. Updated pilot tolerance
- Prevents the body pull-out while machine stops
3. High grade screw
- Tougher and longer screw to increase clamping reliability
Expansion of FINEBEAM – Ø65.01-83.00 mm range
Based on market demand and success of our existing range (Ø25.00 - 65.00), ISCAR-UNITAC is
expanding the FINEBEAM range from Ø65.01 to 83.00 mm for deep hole drilling operation, with
existing inserts and spare parts.
Advantages of 5 direct mounting inserts compared to existing solutions in this diameter range:
- Smaller chips – to ensure good chip control and chip evacuation
- Lower machine consumption
- No cartridges – lower tool cost
- Stable and simple insert mounting
Spare parts list
Inner1
Inner2
Inner3
Center
Peripheral
| Tool Dia | Insert | Guide Pad | Wrench |
|---|
| Min | Max | Center | Inter1 | Inter2 | Inter3 | Peripheral | Screw
X 5PCS | GPS
X 2PCS | Screw
X 2PCS | Insert | Pad |
|---|
| 65.01 | 71.00 | NPMT09….L-**-C | NPMT08….R-**-I | NPMT08….R-**-I | NPMT06….R-**-I | NPHT11….R-**-P | SR 14-560-HG | GPS12 | SR 14-571/S | T-8/5 | T-15/5 |
| 70.01 | 83.00 | NPMT08….R-**-I | NPHT13….R-**-P |
New HF (high feed) chip breaker
BTA drill series has expanded the variety of inserts available with a new HF chipbreaker insert in IC806 and IC908 grades and new radius size of 0.8mm.
The new radius size also applies for “G” type chip breaker.
The expansion should significantly improve FINEBEAM performance, which should increase the feed by 20% in average in machining gummy materials, stainless steel and heat-resistant alloys, known as problematic materials in terms of chip formation.
The HF chip breaker helps to stabilize the drilling process while using high feed, especially in difficult to machine materials such as ISO-M, ISO-S and ISO-H materials.
Chipbreaker comparison
HF - Provides drilling stability at high feed rates
G chipbreaker
HF chipbreaker
Chipbreaker cross-section
New IC806 grade
To prolong tool life in ISO M and ISO S materials
Post Surface Treatment Technology
Excellent hardness and nano-multi-layered coating with high Al content
- Hard coating
Excellent wear resistance thanks to the 20% harder coating
High wear resistant carbide substrate
- High Al content
Minimized built-up edge
- Nano-multi-layered coating
Great fracture resistance by preventing micro chipping on the cutting edge
New Description:
In addition to the previous expansions, we have updated the inserts’ description- the new description will include the radius size and insert position.
Insert type:
M – pressed (central & intermediate)
H – grounded (peripheral)
Insert Size
Thickness
Corner Radius Size
L - Left
R – Right
Chip Breaker type:
G - General
HF – High feed
Insert position:
P - peripheral
I - Intermediate
C - center
Grade
Application Range
The main industries that use deep drills:
- Automotive and heavy machinery
- Diesel engines
- Truck bodies
- Ship propeller shafts
- Nuclear power plants
- Heat exchangers
- Hydraulics
- Aerospace
- Landing gear
- Gas turbines (axles)
- Defense
- Barrels
- Dies & molds
- Coolant holes
- Steel
- Billets
- Machine builders
- Machine spindles
- Oil fields
- Mining and agricultural equipment
NPHT
Peripheral Precision Inserts for Drilling Heads DSD-EF-FB / DDD-EF-FB / DSD-IF-FB
First priority
NPMT
Internal & Central Inserts for Drilling Heads DSD-EF-FB / DDD-EF-FB
First priority
GPS
Deep Drilling Solid Carbide Guide Pads
*DC- Double Chamfer
| Grade Recommendation |
| | Oil Coolant | Water Based Coolant |
| priority | 1 | 2 | 3 | 1 | 2 | 3 |
| ISO-P | IC950 | IC908 | IC928 | IC928 | IC908 | - |
| ISO-K | IC950 | IC908 | IC928 | IC928 | IC908 | - |
| ISO-M | IC950 | IC908 | IC928 | IC928 | IC908 | - |
| ISO-S | IC950 | IC908 | IC928 | IC928 | IC908 | - |
The NPA35-2020's pdf file:
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Download (ZIP)
