Aerospace & Defense Technology - October 2024 - 22

Aerospace Manufacturing
carbide, up to two or three times the surface
speed. PCD inserts are ideal for titanium
components like blisks or rings.
They enable much faster cutting action,
but because they can cut so aggressively,
it's critical to also use high-pressure coolant
with these inserts.
Boosting Process Security With
Better Technology
Few materials are harder on tools than
titanium and HRSAs. To get the most out
of your tooling and maintain optimal
process security, there is a range of solutions
and technologies available to manage
heat, improve tool life and boost
overall productivity.
When you're dealing with titanium or
Thin wall flange scallops require care when milling, as the upper and lower edge of the flange wall can
notch out the milling cutter quickly. To prolong tool life, it's best to use a dynamic milling technique and
adjust the axial contact area of the tool as each scallop is machined. (Image: Sandvik Coromant)
HRSA components like discs, blisks and
rings, it's critical to use precise high-pressure
coolant (at least 1,000 psi) to reach
the high-heat area of the cutting zone.
That means incorporating tools with
precision coolant nozzles that deliver
coolant to the tip of the tool. With the
amount of heat generated from machining
HRSAs, coolant sprayed or flooded
from traditional nozzles can have difficulty
cooling the cutting zone.
High-pressure coolant not only helps
remove the heat; it also improves the
metal chip control. It is difficult to break
the chips with HRSA components, and
this often results in long, nesting chips
and stringers. Using high-pressure coolant
helps to break those chips and keeps
cutting operations running smoothly.
Tool holder solutions also have a critical
role to play in process security. For
example, turning long-reach pockets on
a disc can apply a lot of cutting forces on
the blade. A secure insert rail seat design
with a screw-style holder assembly will
make it far less susceptible to those forces
that wear on the tool.
A rigid, modular setup for tool holdUsing
a round cutting tool insert offers the flexibility needed for CAM programs like dynamic turning,
which eases the tool into the cut and out again, back and forth, while the software dynamically adjusts the
feed rate throughout the cutting process. (Image: Sandvik Coromant)
22
mobilityengineeringtech.com
ing can provide benefits beyond security,
such as faster tool changeouts,
dampened antivibration options and
high-pressure coolant capabilities.
Some solutions available today can offer
a wide range of high-pressure coolant
options such as multiple over/under
coolant channels for precise coolant
spray control.
Shops can also take advantage of new
sensor-equipped turning adaptors and
Aerospace & Defense Technology, October 2024

https://mobilityengineeringtech.com

Aerospace & Defense Technology - October 2024

Table of Contents for the Digital Edition of Aerospace & Defense Technology - October 2024