Titanium Processing Technology

Titanium Processing Technology-How to use 2D profile milling titanium?

Titanium Processing Technology/Solution: Use the special tools (such as COROMILL690 long edge milling).

For some time, titanium its outstanding strength to weight ratio, a material of choice for the aerospace industry is one. It is precisely this achievement aircraft designers dream property, making it the metal processing nightmare. However, with the Sandvik Coromant introduces CoroMill690, now have a special responsibility to take on this long edge milling.
Titanium aerospace industry's favor may also deepen. In the Boeing 787 (Dreamliner) and other advanced aircraft, the amount of titanium has increased exponentially over the old model, and in the future, the weight of titanium aircraft will account for 15%.
Ti-5553 is a new alloy, its properties or even better, in the aerospace industry increasingly popular and are replacing old-fashioned strong materials Ti6Al4V. Ti-5553 has excellent strength and high fracture toughness, particularly suitable for manufacturing components must be under enormous stress, such as structural components and landing gear.
Titanium and the general challenges facing specific challenges Ti-5553 (it even more difficult to process) is: every process needs to have been established based on some general rules, careful planning and tool selection, these rules are: cutting speed limit , with the excellent processing required for high feed rates, the use of coolant, maintaining good chip removal rate, using a sharp tool and wear occurs when the first signs to be replaced, and the tool and the workpiece in contact with the process of moving to avoid interruption feed and so on.
Based on the above considerations, Sandvik Coromant to design a new type of cutter CoroMill690, specifically for high-profile milling of titanium parts.
CoroMill690 is one of the main features of the new cone blade position, which makes it able to withstand the axial cutting force, the axial cutting force is currently on the market the concept of the soft underbelly of the other long edge. The result is to reduce the blade moves to improve the process safety, improve the feed, and to extend the life of the tool body, because it failed to prevent the bottom row. The four new cutting edge design to the process of bringing high production efficiency and economic benefits.
CoroMill690 Another feature is its optimized flute. This feature will help smooth chip, chip to reduce congestion, thereby improving process safety, and increase the cutting parameters.
As the heat-resistant titanium, the cooling is crucial in the process, the purpose is to cool the blade and the tool surface is not overheated. CoroMill690 end use coolant, so that when the square shoulder milling and face milling pit, cavity, or full-time slot, the chip can achieve the best results.
Cutting titanium, the chip is easy to stick to the blade, causing the next round of re-cutting rotary cutter chips, often resulting in edge line chipping. Each cavity has its own CoroMill690 blade coolant hole / injection fluid, used to solve this problem, and to strengthen the constant blade performance.Another clever solution is to screw cooling holes. There are many long-edge cutter blade. Applied to each hole requires a high coolant pump capacity and pressure. The CoroMill690 is different, it can be necessary, no need to plug the holes, thus maximizing the holes need to improve the flow.
In short, the introduction of new CoroMill690 milling aerospace manufacturers will bring many benefits, to bring together all of these factors can promote process safety, the tool has a longer and predictable life. Re-processing of titanium alloy with excellent understanding of the requirements of this specific tool solution will increase the use of titanium to provide support, especially Ti-5553 such an important material for the aerospace industry.

Case Study: processing savings effect of Ti-5553

Made with Ti-5553 for structural parts, the implementation of 2D profile milling is the difficulty lies. This is a processing procedure used CoroMill690. This is a equipped with Coromant Capto coupling (Model 8) long-edge cutter, cutter diameter 84 mm, length 63 mm. Process of cutting conditions: cutting speed 22 meters per minute, per tooth 0.13 mm, radial depth of cut of 6 to 18 mm, axial depth of cut of 20 to 40 mm. Selected insert grade is GC1030. Using this solution, manufacturers can be time each piece of blade production increased by 50%. At the same time, CoroMill690 tool design also reduces noise and vibration.

CoroMill690 technical information

× specifically for titanium machining

× to provide innovative cutting blade against the axial position

× four edge solutions to enhance production efficiency and economic benefits

× Optimized chip flutes reduce congestion, improve process safety, and increase the cutting parameters

× end of the coolant delivery system in face milling and square shoulder milling results in the best chip

COROMILL690 features:

× resist axial cutting force

× four cutting edges

× optimized chip flute to reduce congestion

× smooth chip

× end of the coolant

× Each blade has a coolant cavity hole / injection fluid

× threaded coolant hole design