Machining Titanium: It's Complicated 2
Clicks:26882015-01-07 13:13:35 Source:TaeguTec Inserts,TaeguTec Cutting tools_TaeguTec CNC cutting tools (Shandong) Co., Ltd.
新闻摘要:The above examples demonstrate the challenge when machining titanium and titanium alloys but there are solutions.
Getting Tool Around
it
The above examples demonstrate the challenge when
machining titanium and titanium alloys but there are solutions.
One being
to use round type inserts at a reduced speed when using a 5-axis machine – this
will extend tool life and enable very favorable MRR.
In milling thick
titanium parts, the use of high positive radial/axial rake angle cutter bodies
with strong cutting edge inserts in roughing, will achieve longer tool life and
high MRR.
Titanium
Users
Since the 1960s, titanium has proved invaluable
across the industrial spectrum. In the aerospace field, it is used for
components such as air frames, wing access panels, landing gears and most
importantly, the “cold” section of jet engine components such as engine casings,
compressor discs and blades.
By using Titanium types like Ti-6Al-4V,
these components resist both metal fatigue and the resulting stress cracks when
operating in temperature deviation situations.
As a result of these very
favorable features, the aerospace field dominates the demand for titanium by
accounting for over 50 percent of the market.
Outside the aerospace
field, its biocompatible nature means it is very popular in the medical field
where it is used in manufacturing prosthetic parts such as hip and dental
implants.
The corrosion resistance characteristic means it is suitable
for salt water and certain types of chemical environments – it is used for
submarine hull and ship propeller manufacturing as well desalination plants and
pipes, and drills for off-shore rigs. It is also widely used in petrochemical
and paper making plants.
In its finished form, it has luminosity so it
has a very smooth, fine and attractive look. This makes it very much in demand
for everyday household items.
Higher
Productivity Tips
The goal when machining titanium is
productivity where high speed and feed is feasible, or through metal removal
rates. The point is to adopt the right cutting tools that diffuse the generated
heat and encourages the longest tool life.
Additionally, the machine
set-up in multi-axis complicated tool path milling, needs to be very rigid to
withstand vibration. This also means the fixture inside the machine must be as
secure as possible.
In turning applications on Grade 5 titanium
(Ti-6Al-4V), using PCD inserts with high pressure coolant cuts chips effectively
and reduces the generated heat when machining at speeds of up to 150m/min versus
carbide's speed of 60-80 m/min and a feed rate between 0.2-0.3 mm/rev.
In
Grade 2, titanium diamond coated inserts with high radial/axial rake angle and
high pressure coolant achieve higher MRR and longer tool life.
There are
a number of solutions that can be used when machining titanium. While not being
the easiest material to machine, the recent introduction of grades, geometries,
cutter body designs as well as tool machine set-ups has made titanium and
titanium alloy machining that much simpler.
it
The above examples demonstrate the challenge when
machining titanium and titanium alloys but there are solutions.
One being
to use round type inserts at a reduced speed when using a 5-axis machine – this
will extend tool life and enable very favorable MRR.
In milling thick
titanium parts, the use of high positive radial/axial rake angle cutter bodies
with strong cutting edge inserts in roughing, will achieve longer tool life and
high MRR.
Titanium
Users
Since the 1960s, titanium has proved invaluable
across the industrial spectrum. In the aerospace field, it is used for
components such as air frames, wing access panels, landing gears and most
importantly, the “cold” section of jet engine components such as engine casings,
compressor discs and blades.
By using Titanium types like Ti-6Al-4V,
these components resist both metal fatigue and the resulting stress cracks when
operating in temperature deviation situations.
As a result of these very
favorable features, the aerospace field dominates the demand for titanium by
accounting for over 50 percent of the market.
Outside the aerospace
field, its biocompatible nature means it is very popular in the medical field
where it is used in manufacturing prosthetic parts such as hip and dental
implants.
The corrosion resistance characteristic means it is suitable
for salt water and certain types of chemical environments – it is used for
submarine hull and ship propeller manufacturing as well desalination plants and
pipes, and drills for off-shore rigs. It is also widely used in petrochemical
and paper making plants.
In its finished form, it has luminosity so it
has a very smooth, fine and attractive look. This makes it very much in demand
for everyday household items.
Higher
Productivity Tips
The goal when machining titanium is
productivity where high speed and feed is feasible, or through metal removal
rates. The point is to adopt the right cutting tools that diffuse the generated
heat and encourages the longest tool life.
Additionally, the machine
set-up in multi-axis complicated tool path milling, needs to be very rigid to
withstand vibration. This also means the fixture inside the machine must be as
secure as possible.
In turning applications on Grade 5 titanium
(Ti-6Al-4V), using PCD inserts with high pressure coolant cuts chips effectively
and reduces the generated heat when machining at speeds of up to 150m/min versus
carbide's speed of 60-80 m/min and a feed rate between 0.2-0.3 mm/rev.
In
Grade 2, titanium diamond coated inserts with high radial/axial rake angle and
high pressure coolant achieve higher MRR and longer tool life.
There are
a number of solutions that can be used when machining titanium. While not being
the easiest material to machine, the recent introduction of grades, geometries,
cutter body designs as well as tool machine set-ups has made titanium and
titanium alloy machining that much simpler.
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