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The Leading Edge Technology Of Titanium Processing

2010/10/16 17:48:00 95

Low Price Air Travel New Titanium Milling Cutter

With the growth of the global middle class,

Cheap air travel

Demand is also growing.

For example, in Brazil, Russia, India and China known as BRICs, more and more people want to get cheap business travel and holiday service.

Air cargo is also increasing.

It is predicted that air passenger volume will increase by 5% every year in the next 20 years, while air cargo volume will increase by 6%.

The global aerospace industry is facing the challenge of how to cope with the growing demand for aircraft and the increasing awareness of the environment today.

This requires us to create light aircraft to reduce fuel costs and emissions.

For some time,

Titanium metal

With its excellent strength to weight ratio, it has become one of the first choice materials for the aerospace industry.

But it is precisely this achievement that makes the dream of the aircraft designer a dream, making it a nightmare of metal processing.

However, with the launch of Sandvik's 690 CoroMill, there is now a dedicated long blade milling cutter that can shoulder the heavy responsibility.

The favor of the aerospace industry for titanium metals may be further deepened.

On the most advanced aircraft such as Boeing 787 (Dreamliner), the amount of titanium has increased exponentially over that of the old ones, and titanium will account for 15% of the weight of the aircraft in the future.

Ti-5553 is a new alloy and its properties are even better. It is increasingly popular in the aerospace industry and is replacing the old strong material Ti6Al4V.

Ti-5553 has excellent strength and high fracture toughness. It is especially suitable for manufacturing parts that must be subjected to great stress, such as structural components and landing gear.

The general challenges faced by titanium and the specific challenges of Ti-5553 (which are even more difficult) are: every process requires detailed planning and tool selection based on some established general rules. These rules include: limiting the cutting speed, matching the high feed rate required for fine machining, using coolant, maintaining good chip removal rate, using sharp knives, replacing the initial signs of wear, and avoiding the interruption of feed during the moving contact of tools and workpieces.

On the basis of the above considerations, Sandvik is happy to design a kind of

New milling cutter

CoroMill 690 is used for high efficiency profiling milling of titanium parts.

One of the main features of CoroMill 690 is the new cone blade position, which enables it to resist axial cutting force, and the axial cutting force is the weakness of other long blade concepts in the market.

As a result, the blade movement is reduced, thus improving the safety of the process, increasing the feed and prolonging the service life of the cutter body, because it prevents the bottom row fault.

The new design of the four cutting edge brings high productivity and economic benefits to the process.

Another feature of CoroMill 690 is its optimized chip grooves.

This feature is conducive to smooth chip removal, reduce chip blockage, thereby improving the safety of the process and improving cutting parameters.

Because of the heat resistance of titanium, cooling is very important in processing. The purpose of cooling is to make the blade and tool surface not overheated.

CoroMill 690 uses the end coolant, so that the best chip removal effect can be achieved when shoulder milling and face milling concave, cavity or full groove are used.

Challenge: how to perform high efficiency 2D profiling milling on titanium alloy.

Solution: use special tools (for example, COROMILL 690 long edge milling cutter).