NCTransform® Capability

Adaptive Blending

Surface-Accurate Material Removal

Blending is one of the most algorithmically complex operations in adaptive machining, but with NCTransform, your engineers can set up a blending program in hours, not weeks. NCT measures the actual surface, builds the topology, and adapts the toolpath automatically. Your team gets seamless, accurate blends without writing a single line of custom code.

Live surface mapping: nominal vs. actual grid on turbine airfoil

8 Times Faster

Faster than hand blending: airfoil repairs your team once spent all day on done in under an hour

Any surface

Turbine airfoils, cast surfaces, weld repairs, duct transitions. If a probe can map it, your team can blend it

Hours to setup

Complex algorithms made easy. Most engineers have a blending program running same day

Repeatable

Consistent results every part, not dependent on who's at the machine that day

MRO spotlight: turbine blade repair

From 8 hours of hand blending to under one hour.

Airfoil repair is the most demanding blending challenge in aerospace MRO — restoring the precise surface profile of a turbine blade after damage, coating removal, or weld material addition. NCTransform gives your team the tools to do it accurately and repeatably, without skilled hand-blenders.

Your team knows exactly where to blend because NCT measured it.

In a traditional MRO workflow, your operators manually grind and hand-blend the repaired area, working by feel to match the surrounding airfoil profile. The process is slow, skill-dependent, and inconsistent part to part.

With NCTransform, your team maps a grid of points across the repair zone and the surrounding blade surface, building a precise topology of what’s actually there. The blend toolpath adapts to that real surface, transitioning smoothly from the reworked area into the original airfoil geometry with no step, no hand finishing required.

The result: an aerodynamically correct surface that meets print every time, produced in a fraction of the manual labor hours and your team set up the program themselves.

8 times faster

Repair cycle

Less cost

Reduced labor hours per blade

More capacity

Take on more blades without adding headcount

MRO: turbine blade leading edge

See it in action

Turbine blade leading edge blend: live

Watch NCTransform® scan a reworked turbine blade and automatically blend the repair area back to the surrounding airfoil profile on the CNC machine.

How blending works

Measure. Map. Morph. Blend.

Behind the scenes, blending involves complex surface mathematics, but your team doesn’t need to deal with any of that. NCT handles the algorithms. Your engineers define the blend zone, push start, and get a seamlessly blended surface.

01 — Measure

Map the actual surface

NCT measures a grid of points across the blend zone and surrounding reference surface, building a precise map of exactly what’s there. Your team gets real topology data, not assumptions from the nominal CAD model.

02 — Map

Build the actual surface model

The measured points are used to construct a local model of the actual surface, capturing deviations from nominal due to weld material, coating buildup, repair stock, or as-cast variation. This becomes the reference your team’s blend toolpath works from.

03 — Blend

Toolpath adapts to the real surface

The blend toolpath morphs to follow the actual measured surface, transitioning smoothly from the modified area into the surrounding geometry. Your team gets a seamless result that removes only what needs to be removed, with no witness marks and no hand finishing.

Surface measurement methods

Three ways your team can map the surface.

Single touch probing

The standard approach. Your team's existing touch probe measures discrete points across the surface to build the topology grid.

Drag probing (Renishaw SPRINT)

High-speed scanning that sweeps continuously across the surface, capturing far more data points in the same time, ideal for complex curved geometries.

Light scanning

Non-contact optical scanning for surfaces where touch probing isn't suitable, delivering dense, high-resolution topology data without risk of surface damage.

01

Your engineer defines the blend zone once

Define the blend region and the surrounding reference surface in your CAM program using the nominal model. Configure it once per part type. Your whole team reuses it for every repair cycle without touching the setup again.

NCT handles the adaptation to the actual part at runtime. Your engineers work in the CAM environment they already know, no new software to learn, no proprietary scripting.

02

NCT maps the actual surface. Your choice of method

NCT measures the repair area and surrounding surface using your team’s preferred method: touch probing, drag scanning (Renishaw SPRINT), or light scanning. The result is a real-time topology map, no offline processing, no CMM trip, no part removal.

Grid density is configurable. Finer measurement for complex curved geometries, coarser for simpler surfaces where speed matters more. Your team controls the tradeoff.

03

The blend toolpath is computed automatically

NCT morphs the blend toolpath to the actual measured surface, adapting cut depths and stepovers to follow the real contour while maintaining a smooth transition into the reference geometry. Your team gets this result without writing any custom surface math.

The algorithm guarantees continuity at the blend boundary, no step changes, no abrupt transitions, no witness marks. The complex mathematics happen automatically.

04

Cut, then verify before the part leaves

The adapted toolpath runs and your team gets a seamlessly blended surface. Optionally, NCT re-probes the blended area to verify the result against the nominal profile, generating a traceable inspection record before the part is removed.

Verification data is logged against the part serial number, providing traceability for MRO sign-off, customer reporting, and airworthiness documentation.

Blending applications

Where your team can put blending to work.

Blending isn’t just for turbine components. Any time your team needs to transition between two surface states: as-cast to machined, repaired to original, welded to parent. NCT gives you the tools to do it accurately and automatically.

Casting gate removal

New parts: investment and sand castings

Your team can eliminate the hand-grinding step entirely. NCT measures the actual casting surface around each gate location and morphs the removal toolpath to blend flush with the real surface, handling part-to-part variation in gate position and residual stub height automatically.

No more inconsistent grind marks, no more operator skill dependence. The same quality result on every casting, every shift.

Gate stubs

Riser removal

Parting line cleanup

Flash removal

Aerospace castings

Weld repair blending

Repair & overhaul. All weld types

Weld height, width, and position all vary, making nominal-based toolpaths unreliable. Your team can measure the actual weld bead geometry and surrounding surface, generating a blend toolpath that removes the crown and transitions smoothly into the parent material every time.

Works on flat, curved, and complex surface geometries. Seamless weld repairs with no witness marks, no undercut, no rework.

TIG weld blending

Weld bead removal

Repair patches

Structural weld cleanup

Aero surface repair

Welded tip & leading edge blending

New material addition on airfoils

Your team can restore worn or damaged blade tips and leading edges by welding on new material, then blending the added section back to the original airfoil profile. The transition between new and parent material must be aerodynamically correct. NCT ensures it is.

NCT measures the actual profile of the welded tip and the surrounding blade surface, morphing the toolpath to create a smooth, continuous transition matched to the real curvature at every point.

Blade tip restoration

Leading edge rebuild

Trailing edge repair

Squealer tip blending

Shroud blending

As-cast to as-machined transitions

Structural components: ducts, housings, complex castings

Not every blending challenge involves a repair. Your team can use NCT to blend between an as-cast surface and an adjacent machined surface, eliminating the lip or step that would otherwise require a secondary hand-finishing operation.

A real example: blending a section of a duct from the as-cast exterior into a machined bore or flange face, leaving a seamless transition with no remaining lip to remove. NCT measures both surfaces and generates a toolpath that bridges them cleanly, automatically.

Cast-to-machined transitions

Duct blending

Complex casting cleanup

Housing transitions

Lip removal

Business impact

What your team gains from automated blending.

Cut repair time by up to 8x

What your team once spent a full shift doing by hand now runs in under an hour. That capacity goes back into taking on more work, not more headcount.

Same result every part

Your team gets consistent surface quality on every cycle, not the quality of whoever is at the grinder that day. Part-to-part consistency improves dramatically, reducing re-inspection and rework.

Remove exactly what needs removing

By measuring before cutting, your team removes only the excess material. No overcut into thin airfoil sections, no undercut that needs rework. Precise material removal every time.

Any engineer can set it up

Behind the scenes, blending involves complex surface mathematics. NCT handles all of it. Your engineers define the blend zone in CAM and NCT does the rest. Most teams have their first program running the same day.

Built-in quality evidence

Post-blend verification generates an inspection record of the blended surface, logged against the part serial number, ready for MRO sign-off, customer reporting, and airworthiness documentation.

Win work that requires it

Take on blending contracts, MRO programs, and surface restoration work that your shop previously had to turn down or outsource. NCT makes the capability accessible without adding specialized labor.

"

"Before using NCTransform, our airfoil repair operations involved nearly 8 hours of tedious hand blending. Since implementing NCT, we've experienced a dramatic improvement in efficiency. We're now able to complete the same task in less than an hour, which has greatly reduced our labor costs and allowed us to take on more business."

E. Correa

NC Programming Services Manager

8x faster

Airfoil repair cycle time

More capacity

Ability to take on additional MRO volume

Lower costs

Reduced manual labor per repair event

Other NCTransform® capabilities

Have a blending challenge your team is solving by hand?

Tell us about your surface and process. We’ll show you what your team can do with NCT.