Ensure your components are sufficiently protected against friction and galling with our surface conditioning treatments.
We offer the following surface conditioning treatments:
- Blasting
Blasting is the process where small angular or spherical particles are propelled at a component by compressed air, or mechanical high speed rotating wheels or water pumps. Important factors in blasting include: material of workpiece being blasted, media type, shape, size, density and hardness, velocity etc.
Benefits
Blasting is a mechanical process - using various blast media to achieve the following:
- De-burring
- Anti-galling
- Peening
- Decontamination
- Surface cleaning
- Pre-paint and coating adhesion
- Paint and coating removal
- Mill scale removal
- Rust removal & de-flashing
- Blending of tool marks
Equipment
The following type of equipment is used: hand cabinets, automated machines, and blast rooms.
Media
Virgin or recoverable media is used in industrial blasting and the type, shape and hardness affect the process.
Blast media is either spherical or angular.
Spherical media is used for peening and to produce smoother surface finishing. For example, ceramic beads, glass beads, stainless shot, and carbon shot.
Angular media is used to produce a rougher surface finish and better anchor patterns for coating adhesions. For example, aluminium oxide, ceramic grit, stainless grit, steel grit, silicon carbide, and crushed glass.
- Shot Peening
Shot peening is a cold work process, using metal, glass or ceramic shot of a specified hardness with sufficient force to generate plastic deformation on the surface of the component.
It is a method used to impart compressive residual stresses on to the surface of a component, which results in modified mechanical properties.
Benefits
The shot peening process is used to add strength and to reduce the stress profile of components.
The main advantage of shot peening is to extend the service life of a component by increasing the resistance to fatigue, including corrosion fatigue and stress corrosion.
The shot peening action creates a beneficial compressive residual stress which makes the surface resistant to crack initiation and propagation and in the process prevents failures due to:
- Metal fatigue
- Corrosion fatigue
- Stress corrosion cracking
- Intergranular corrosion
- Fretting
- Wear
Equipment
- Hand cabinet – Manual
- Rotary enclosed blast machine
Media
Spherical media is used for peening and to produce smoother surface finishing.
- Steel shot
- Glass beads
- Ceramic
