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Ikmanda Roswati
Ikmanda RoswatiPh.D.Indonesia
Ultrafast photonics and laser-matter interaction
Published
Mar 26, 2026

Laser Cleaning an Automated Steel Control Arm

An automated control arm is a painted or coated machine member with rust, grease, and factory finish. Soil can come off without changing the fit at the joints if grease is not cooked into the bushings and the remaining coating is left where it still protects the part.

What This Video Shows

Short 4aTI9zsUpTg shows pulsed laser removing rust and coatings from an automated steel control arm while machined geometry stays readable.

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Questions this footage answers

  • How do you verify substrate safety during laser cleaning automated control arm?

    Start on a non-critical mounting flange and watch for heat tint or a changed surface before you move to bearing seats or precision bores. Published 20-steel coupon work shows rust leaves between about 1.42 and 4.26 J/cm², while substrate marking starts near about 5.68 J/cm². That coupon check takes minutes and keeps machined faces out of the energy band that can melt steel.

  • How does laser cleaning compare to traditional control arm cleaning methods?

    Contactless pulsed cleaning in this Short removes oxide without grit hitting bearing seats or stamped geometry. Abrasive blasting cuts base metal every pass and throws dust that is hard to control on enclosed arms. Chemical stripping adds hazardous waste handling. Laser work in the published rust band clears rust in one to two passes while the arm stays dimensional for reassembly.

  • What contaminants are removed from automated control arms?

    The footage targets ferrous oxide rust, aged paint, and hydrocarbon grease on steel control-arm faces. Rust on carbon steel responds in the published 1.42–4.26 J/cm² band at 1064 nm, while paint ablation on metal often begins near 0.5–2 J/cm² depending on pigment. Grease lifts through thermal ablation once the beam energy matches the soil on each face.

  • What process settings matter most when restoring an automated control arm?

    Keep rust work at or below the about 4.26 J/cm² complete-removal cue and well under the about 5.68 J/cm² marking line on steel coupons. When thick paint lags bare oxide, add passes instead of stacking power past the about 35 J/cm² remelting risk seen on metal paint stacks in turbine-blade studies. Program scan speed and overlap so complex 3D geometry stays inside the safe band on every face.