FAQs

How does the cost of dies and tooling for aluminum extrusions compare with the costs of other processes and materials?

The cost of dies for aluminum extrusions is normally much lower than the cost of tooling for other processes, like die casting, forming, impact extrusion, stamping or vinyl extrusion.

How does the strength-to-weight ratio for aluminum extrusions compare with the ratio for other materials?

The strength-to-weight ratio of aluminum extrusions is quite good when compared with the ratios for other materials, such as rolled form steel, copper extrusions, molded plastic or wood.

What sort of tolerances can be achieved with aluminum extrusions?

Aluminum extrusions generally provide much tighter tolerances than other materials, including vinyl extrusions. In general it produces very precise tolerances, in accordance with British standards Certification.

What are the advantages of using the 6xxx series of alloys in aluminum extrusions?

The 6xxx series, which incorporates magnesium and silicon, provide good extrudability, strength, corrosion resistance, formability and machinability.

What is the difference between solid, semi-hollow and hollow shapes?

Solid shapes have no enclosed spaces, similar to channels or flat stock. Hollow shapes contain a minimum of one enclosed space, such as a pipe. Semi-hollow dies have partially enclosed spaces, an extremely tight channel is an example of this.

Why have I received a die drawing requesting my approval?

You are being asked to approve the dimensions, details, tolerances and surface conditions of the extrusion to be produced. By signing the approval print you are accepting the profile as drawn, along with the surface finishes, if noted other than “mill” finish. This is your final chance to indicate any changes prior to the die being cut.