metallinkäsittely

Metallinkäsittely refers to the processes and techniques used to shape, form, join, and finish metal materials. It encompasses a wide range of industrial and craft activities, transforming raw metal into functional or decorative objects. These methods can be broadly categorized into several groups.

Forming processes involve altering the shape of metal without removing material. Examples include forging, where metal is heated and hammered into shape, and rolling, used to create sheets and profiles. Drawing is another technique, used to produce wires or tubes by pulling metal through a die. Stamping and pressing are common in mass production, using dies to shape sheet metal.

Machining processes, on the other hand, involve removing material to achieve a desired shape. This includes turning on a lathe, milling on a milling machine, drilling, and grinding. These methods require precision to achieve tight tolerances.

Joining methods are used to permanently or semi-permanently connect metal parts. Welding, a high-temperature process, fuses metal pieces together. Brazing and soldering are lower-temperature joining techniques that use a filler metal. Mechanical fasteners like bolts and rivets are also widely used.

Surface treatment and finishing processes are applied to enhance the appearance, durability, or functionality of metal parts. This can include painting, plating with other metals, anodizing for aluminum, or polishing to create a smooth surface. Heat treatments, such as annealing or hardening, are also crucial for modifying a metal's mechanical properties. Metallinkäsittely is fundamental to industries ranging from automotive and aerospace to construction and manufacturing.