Metal finishes: knowing the most important processes of sheet metal working
Metal finishes include a large series of processes to which metals are submitted. Beginning from the design and engineering, passing through the hot and cold sheet metal working (such as metal blanking, sheet metal deep drawing, sheet metal bending, punching threading etc.), a metal component arrives to the final phase of work: the surface metal finishing.
Metal surface finishes: what does it mean?
With metal finishing processes, specialists usually denote the external treatment of a metal component which is submitted to an application of a thin film on its surface. These final phase of sheet metal working are common used for all stainless steel products, aluminum, copper and all the other most known metal surfaces.
Aluminum and steel finishes for example are useful to make finished products:
- more resistant to the corrosion
- with an higher durability (think about plants’ component)
- with a more pleasant decorative appeal (think about metal designed furniture).
Metal finishing: all methods and applications
There’re various type of metal surface finishing, from the traditional send blasting process to the brushed ones; each method with a specific characteristics. Below there’s a list of the most common.
With sand blasting process means the act of hit external or internal metal surface with a jet of fine bits of abrasive material (generally sand, precisely).
It’s used to tread surfaces such as stainless steel or carbon steel making them matt, more resistant to corrosion and clean from impurity; this is in fact the phase of process that precedes the following painting ones.
Among metal finishing processes, metal plating is one of the most known. It consists to cover a surface with thin film, a substrate of another metal which could be nickel, silver, gold etc. making it more resistant to the corrosion, to the massive uses, to the environmental conditions.
Used to decorate objects, furniture, jewelry, musical instruments, electronics etc., there are many specific metal plating operations: from the gold plating, to the silver ones, chrome or zinc.
Brushed metal finishing is the typical method processed for removing imperfections from the surfaces, through the use of special abrasive brushes. This application ensures an high quality of the finished product.
It’s often required also to recovery specific functionalities. It means that in the case of damaged gears or mechanical parts, the operation of brushing can get them running. It’s also used to reach a granular and scratched texture on external surface.
Metal polishing are the metal surface finishing used for obtaining polished metal surfaces.
Commonly used on stainless steel, copper or aluminum sheet metal, polishing operation are usually made for smoothing and polishing entire objects and part of them before being submitted to other metal working such as chrome, gold and silver plating.
The result is always a glossy and really polished surface; this is the reason why sometimes, metal polishing is a metal finish process used like a method to re-give life to old, ruined or neglected metal surfaces.
Powder coating metal finishes is a process which consists in covering metal surface with a thin organic film.
The aim is double: decorative and protective. In fact, the powder coating allows the metal surface to become more pleasant but also more resistant to weather conditions, massive uses and corrosion.
Compared to the classic painting process, powder coating has a longer durability even if the brightness doesn’t reach that of liquid paints.
Minifaber metal surface treatments
Minifaber employs suppliers who have extensive know-how in the metal surface treatment field. The purpose of these metal treatments is to grant the product an excellent finish that, not only provides aesthetic value, but increases its durability, eliminating harmful oxidation processes.
The metal finishes we provide can be used both for semi-finished both for finished products: whether you need to process small batches or large quantities of products, our services are available to meet your needs!