Esempi di fresatura ad alta velocità di parti in titanio

La lega di titanio ha un'elevata resistenza, elevata tenacità alla frattura, buona resistenza alla corrosione e saldabilità. Because it is more difficult to process than ordinary alloy steel, titanium alloys are generally considered to be difficult to process materials. The metal removal rate of a typical titanium alloy is only about 25% of that of most ordinary steels or stainless steels. Perciò, the time required to machine a titanium alloy workpiece is about 4 times that of machining a steel part.
The following are two examples of machining aerospace titanium alloy parts with ATIStellram cutters and X-Grade blades.

Copertura esterna in lega di titanio

1. Examples of machining 1
CNC processed titanium parts: titanium alloy outer cover (military)
The material of the workpiece: Ti-6Al-4V (AllvacTi-6-4 alloy)
The size of the workpiece: 110″×18″
Machining description: The ATIStellram7792VX high-feed milling cutter with XDLT-D41 indexable inserts is used for processing, and the tool life for rough milling titanium is 156 minuti.
Milling cutter: C7792VXD12-A3.00Z5R; Number of slots: 5
Blade: XDLT120508ER-D41; Grade: X500 (designed with X-Grade technology)
Axial depth of cut ap: 0.080″
Radial cutting width ae: 2.100″
Cutting speed vc: 131sfm
Feed per tooth fz: 0.023ipt
Feed rate: 19.2ipm
Tool life: 156 minuti / each transfection bits (each insert is indexable four times)

Titanium turbine blades

2. Machining example 2
Machined parts: titanium turbine blades for military aircraft (new application)
Workpiece material: pure titanium alloy
Blade size: 23.6″×11.8″
Machining description: The ATIStellram7710VR milling cutter equipped with anti-rotation blades is used to process the propeller blades. The tool life of rough milling processing reaches 110 minuti.
Milling cutter: C7710VR12-A2.00Z5R; Number of slots: 5
Blade: RPHT1204MOE-421-X4; Marca: X700 (designed with X-Grade technology)
Axial cutting depth ap: 0.080″～0.100″
Radial cutting width ae: 0.800″～1.37″
Cutting speed vc: 265sfm
Feed per tooth fz: 0.0086ipt
Feed rate: 21.8ipm
Tool life: 110 minutes per indexing (each blade can index 4 volte)