Joining: Welding

Welding processes are used for the joining of metals (particularly steel and aluminium) and plastics. It is estimated, that for the joining of aluminium parts in 40 to 50 per cent of the cases welding processes are involved. The thing all welding processes have in common is that they produce a permanent substance-to-substance joint between the

Joining: Soldering and brazing

Soldering and brazing are methods for joining different metallic materials. One can solder or braze all metals. With few exceptions (see Prerequisites section), all aluminium alloys can be joined to other materials by soldering or brazing. The process takes place using a fill metal (solder) whose melting point is below that of the metals being

Joining: Riveting

With the further development of other joining processes and the increasing use of adhesive bonding for stressed joints, riveting was regarded of play for the cold-formed aluminium rivet. Nowadays, riveting processes for aluminium alloys are divided into joining using rivet elements (so-called direct riveting) and joining unsing functional elements

Processing technologies: Forging

This section covers several aspects. Click on one of the topics below to obtain further information about it: General principle of forging Forgings Typical applications Forging alloys Microstructure / forged structure Defects in the forged structure Forging temperatures Summary With forging, one differentiates between open-die or hammer forging

Health and social aspects

This section covers several aspects. Click on one of the topics below to obtain further information about it: Health aspects Aluminium in the environment Aluminium in the human body Dialysis Alzheimer's disease Drinking water Aluminium in medicine Food and packaging Social aspects Social aspects using the German aluminium industry as an

Aluminium alloys

This area covers several aspects. Click on one of the topics below to obtain further information about it: What is an alloy? Importance and functions of aluminium alloys Alloy forms Master alloys Production Composition and available forms Summary Aluminium is usually alloyed with other elements in order to improve its corrosion resistance and

Casting

Casting is the shortest available process for converting unrefined metal into finished parts. The principle is simple: aluminium alloys are heated to 660-750 oC (the melting point is around 650 °C) and then cast into a mould. The most important casting processes are permanent mould casting, die-casting and sand casting.