Automated Control Arm Laser Cleaning

We verify surface safety on control arms by running a test pass on a non-critical surface first — typically a mounting flange face — then checking that the metal shows no heat discoloration or dimensional change before moving to bearing seats and precision bores. Bearing seats and journal surfaces are measured before and after cleaning; in every job we've done, dimensional change has been undetectable. This check takes about 10 minutes and is standard on any precision part before we clean the full component.

Laser cleaning removes rust and coatings from steel control arms in 1–2 passes — achieving SSPC-SP 10 near-white cleanliness without measurable dimensional change. Abrasive blasting removes 5–15 µm of base material per pass and cannot meet OSHA respirable dust limits on enclosed components. Chemical stripping requires hazardous waste disposal under EPA 40 CFR Part 261. Laser cleaning generates no secondary waste stream and preserves bearing-seat tolerances within ±2 µm, a margin abrasive media cannot reliably hold.

Laser cleaning removes ferrous oxide rust, hydrocarbon greases, and aged paint from steel and aluminum control arms in 1–3 passes without heat-affected zones above 120°C — verified by thermocouple per ASTM E2877. Hydrocarbon contamination is reduced to meet SSPC-SP COM wettability standard for pre-weld cleanliness on MIG and TIG processes. Bearing seats and mounting bores retain dimensional tolerance within ±2 µm after cleaning.

The laser is calibrated to remove oxide from automotive control arm without marking or changing the surface below. Most jobs take one to two passes depending on how heavy the buildup is. The surface comes out ready for coating, welding, or inspection with no additional prep and no chemical residue.