Forgings and Castings Cleaning

Forging and casting are manufacturing processes used across various industries to transform metal materials into a desired geometry. Due to the manufacturing process, these parts tend to have a dull appearance and surface finish can be rough, with oxidation, scale and discolouration traces. ActOn engineers recommend using wet blasting machines to achieve a smooth and clean surface.  

Wet Blasting Applications

For Castings and Forgings

Wet blasting offers a range of finishing applications for forgings and castings, enhancing the surface quality, appearance, and performance of these metal components. Some common finishing results achieved with this technology include:

Scale Removal

In the case of heat-treated forgings or castings, wet blasting can efficiently remove scale formed during the heat treatment process, leaving a clean and uniform surface.

Surface Cleaning

Effectively removes contaminants such as rust, scale, dirt, and residual casting materials from the surfaces of the components. This process ensures a clean foundation for subsequent finishing steps.

Surface Finish Prior to Coating

Provides an ideal surface preparation for coatings by creating a profiled and clean surface. This enhances the adhesion of protective coatings, such as paint or powder coating, for improved durability and corrosion resistance.


Forgings and castings often have sharp edges, burrs, or flash remaining from the manufacturing process. Aqua blasting is used to remove these imperfections, creating smoother and safer surfaces.

Uniform Etching

Aqua blasting can be used to achieve a uniform etching on the surface of forgings and castings, enhancing their overall appearance and providing a consistent texture.

Shot Peening

Can be used for shot peening to impart compressive stress on the surface of parts. This enhances the component’s fatigue resistance and improves its overall mechanical properties.

Removal of Casting Residue

It is effective in removing residual casting sand, investment material, or other debris left on the surface of parts during the casting process, ensuring a clean and smooth surface.

Precision Cleaning of Complex Shapes

The versatility of wet blasting allows for the effective cleaning of intricate or complex shapes, ensuring that all areas of forgings and castings, including cavities and recesses, are thoroughly cleaned and finished.

Rust and Corrosion Prevention

By removing existing rust and providing a clean surface, wet blasting contributes to the prevention of future corrosion on components, extending their lifespan and maintaining structural integrity.

Wet Blasting Benefits 
For Castings and Forgings

  • Wet blasting ensures thorough surface cleaning by effectively removing contaminants such as rust, scale, and residual casting materials. This results in a pristine foundation, vital for subsequent finishing processes.
  • The deburring capabilities of wet blasting are invaluable, smoothing out sharp edges and eliminating unwanted burrs or flash left during manufacturing. Furthermore, the process excels in scale removal from heat-treated forgings, fostering a clean and uniform surface.
  • The versatility of wet blasting extends to surface preparation, providing an ideal base for coatings and imparting compressive stress through shot peening for improved mechanical properties. The technique allows for tailored surface finishes, from satin to polished, contributing to both visual appeal and corrosion resistance.
  • Additionally, it ensures the removal of casting residue and precise cleaning of complex shapes, fostering quality, durability, and longevity in forgings and castings. 
Discover the finishing solutions for forgings and castings from ActOn Finishing

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ActOn Finishing Ltd

213 Torrington Avenue,
Tile Hill, Coventry, CV4 9HN
United Kingdom.
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