The research of new methods for connection of mechanical parts made of aluminium or magnesium alloys
In recent years, the research of new methods of connection for mechanical components made of aluminium and magnesium alloys has been the focus of intensive research. The traditional methods such as riveting and welding are limited when used for parts made of such alloys, and will often result in a weaker joint or even weak wear resistance. The ideal connection to best take advantage of the material properties of aluminium and magnesium alloys is a connection technique which does not damage the surface, does not significantly change the properties of the alloy, permits good mechanical conduction and at the same time ensures quick and reliable connection and detachment.
In the last 12 years, the study and development of new connection techniques for aluminium and magnesium alloys has been an important field of research. Many attempts have been made to develop new methods with different characteristics than those of traditional connections.
One of the first new techniques to be developed was friction-stir welding. This technique is based on friction generated by rotating tools which are pressed against a joint. This friction generated local heating in the joint area, allowing the material to soften and mix with the other material gradually. This process results in a very strong connection that can withstand considerable loads and still remain detached.
In recent years, innovative welding techniques such as electron beam welding, laser welding and ultrasound welding have also been developed. Each of these techniques uses a specific electron beam, laser or ultrasound tool to generate heat that is used to weaken and remold the material near the join point.
In addition to welding, adhesive bonding and mechanical connections are also being developed as potential new connection techniques for aluminium and magnesium alloys. Adhesive bonding uses specialized adhesives designed to bond the parts together, while mechanical connections often use specialized rigid connectors that link the different parts and ensure their proper attachment.
New studies are also being conducted on the use of self-piercing rivets for connecting mechanical components of aluminium and magnesium alloys. This process uses a pre-bored hole, which is then filled with a rivet or other self-piercing material. This process results in an extremely strong connection that is significantly stronger than a traditional riveting connection.
Whether using welding, adhesive bonding or mechanical connections, researchers have made significant advances in each of these new connection methods. As research continues, it is expected that these techniques will become more and more advanced, leading to stronger and more reliable connections with aluminium and magnesium alloys.
The development of these new techniques for connection of mechanical components of aluminium and magnesium alloys is an ongoing process. As research continues, engineers are continuing to create and modify existing techniques to find the most reliable and efficient connection methods. In the end, these new techniques will help to reduce costs, save time and provide reliable connections for many types of mechanical components.
