Laser claddning, injection moulding and flame spray information

Laser claddning, injection moulding and flame spray information

Cladding

Cladding is the bonding together of dissimilar metals. It is distinct from welding or gluing as a method to fasten the metals together. Cladding is often achieved by extruding two metals through a die as well as pressing or rolling sheets together under high pressure.

Laser

Laser cladding is a method of depositing material by which a powdered or wire feedstock material is melted and consolidated by use of a laser in order to coat part of a substrate or fabricate a near-net shape part.

It is often used to improve mechanical properties or increase corrosion resistance, repair worn out parts, and fabricate metal matrix composites.

Benefits with laser cladding

Products obtained with the laser cladding process provide corrosion resistance, wear resistance and higher hardness. These properties come from the material that is applied with the laser cladding.

Here are some industries there laser cladding is common:

steel

papermaking

food processing

waste recycling

oil drilling

Injection moulding

Injection molding is a manufacturing process for producing parts from both thermoplastic and thermosetting plastic materials. Material is fhotaged into a heated barrel, mixed, and forced into a mold cavity where it cools and hardens to the configuration of the mold cavity.

Flame spray

Flame spraying is part of a wider group of coating processes known as thermal spraying. In these processes, a consumable (usually a powder or a wire) is heated and propelled onto a substrate to form a coating. Flame spraying is the oldest of the thermal spraying processes. A wide variety of materials can be deposited as coatings using this process and the vast majority of components are sprayed manually.

What is Thermal Surfacing?

Thermal surfacing is a method to improve the surface properties of base metals. The method extend the operative life of expensive equipment. A good solution that saves your money and time.

Some Features and Benefits with thermal surfacing.

Correct machining errors

Create high surface wear resistance

Improve surface corrosion resistance

Make surfaces chemically resistant

Impart heat resistance to surfaces

Increase or lower surface friction

Repair worn/cracked surfaces

Thermal spraying

Thermal spraying techniques are coating processes in which melted (or heated) materials are sprayed onto a surface. The "feedstock" (coating precursor) is heated by electrical (plasma or arc) or chemical means (combustion flame).

Powder Welding

Powder welding results in a smooth, dense coating with a diffusion bond to the base material. A standard oxy-acetylene torch is used, with the powder fed into the flame from an attached hopper. Typically used for glass moulds, smaller parts and repairs. Particularly suited for the repair of cast iron and machined parts.

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