Depending on the process, aluminium drop forged pieces have a smooth and homogeneous surface with a multitude of possible technical and decorative applications:
|Chemical pickling||smooth, matt reflective surface, silvery sheen|
|Abrasive blast cleaning
|processed with stainless steel beads, cost-effective, environmentally friendly surface; matt, silky appearance.
Important: For components under dynamic stress, this process increases strength.
|Strength blasting||targeted strengthening of the component surface at points under high dynamic stress|
|Ball burnishing||shiny, silvery surface; also advantageous for parts under dynamic stress|
|Combination of brushing, polishing and shining||for the highest decorative requirements|
|Decorative anodising||anodic oxidation, decorative colouring in all shiny metallic colours|
|Technical anodising||anodic oxidation, surface and corrosion protection, wear protection and increased hardness for layers thicknesses > 30 µm|
|Chromating||frequently yellow chromate for surface layers and temporary corrosion protection|
|Passivating||like chromating, but chrome(VI)-free|
|Powder coating||very decorative and resilient surface protection, layer thicknesses approx. 80 µm|
|Painting||standard cataphoretic paints, limited corrosion protection, decorative surfaces|
|ZnS layers||organic/inorganic thin-film coating for corrosion protection|