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SURFACE FINISHING

As Machined

Retains the surface left by the cutting process.

The starting surface

Specify the result you need.

Visible tool paths can remain. Mark burr-sensitive edges and cosmetic faces; use a drawing callout when a particular surface roughness matters.

Discuss this finish
As Machined material reference

Material families to review

Aluminum

6061-T6, 6082-T6, 7075-T6. Light housings, brackets and plates.

Alloy Steel

4140, 4340, 42CrMo4. Loaded shafts, tooling and adapters.

Brass

C36000, CW614N. Turned fittings, small parts and decorative details.

Copper

C110, C101. Electrical and thermal conductivity first.

Titanium

Grade 2, Grade 5. Light, strong and corrosion-resistant parts.

Compatibility depends on the specific grade, geometry and treatment specification. Final selection is reviewed with the project.

A finish belongs
in the drawing, too.

Identify visible surfaces, masking areas, contact points and fits. State whether your dimensional requirements apply to the finished part.

Read the finish checklist

Surface finish comparison

Select a process specification and acceptance reference; appearance illustrations do not establish coating thickness, corrosion performance or conformity.

Surface finish comparison
FinishMaterial families to reviewRequirement to specifyFeatures to review
As MachinedAluminum, Stainless Steel, Carbon Steel, Alloy Steel, Brass, Copper, TitaniumThe starting surfaceVisible tool paths can remain. Mark burr-sensitive edges and cosmetic faces; use a drawing callout when a particular surface roughness matters.

LET’S MAKE IT TANGIBLE

What are you working on?

Bring a drawing. Bring a sketch. Start the conversation.