Mechanical processes means combining metals together to achieve what is required for and from the industries. The metals are formed or casted into a desired shape, but before all this casting, the metal properties are determined to know about its strength and quality. Following methods are processed in metalworking to get the finished shape:
Hot working is carried out at a temperature range higher than the re crystallization temperature of the metal being formed. Here the behaviour of the metal is changed, due to the fact that it is above its re crystallization temperature.
Cold working (or cold forming) is a metal forming process performed out at room temperature or a little above it. The force required change the shape is greater in cold working than in hot working.
Casting is about a mold is formed into the geometric shape of a desired part to solidify the metal. Hence a metal casting is created. Molds can be classified as open or closed molds.
Molding is like casting which is the process of shaping liquid raw material like plastic, ceramics, rubbers or metal using a mold or frame so that it can adopt its shape.
Welding joins materials strongly consist of mainly iron and steel that melts metals and forms joint holding broken insulated materials. Like arc welding, uses power supply to form arc between the material and the electrode to fuse them together after melting materials to cool them for joining.
Rolling is a process that reduces the thickness of the material making them uniform into a bloom or a slab after passed through rolls. Like hot working and cold working, it is also classified as hot and cold rolling based on the temperature of the metal.
Machining includes several tasks that include milling, drilling, turning, sawing, tapping, knurling which performs material removal operations from a work piece with the help of a cutting tool with the sole purpose of forming them into a desired final required size and shape. Materials like wood, plastic or ceramic are machined upon.
Machining process such as drilling, rounds holes or larges the existing ones using powered drills.
Milling process consists of a cutting tool which enhances the edges of a work piece into demanded dimensions or straight surface.
Sawing process uses a hard teeth blade with sharp edges cuts a work piece clean and accurately on hardened materials.
Grinding process counts cutting of small chips from the work piece and is a subset of cutting, as grinding is a true metal cutting process.
The turning process includes the rotation of a work piece in which material is removed away. With the help of cutting tool for instance, turning on the lathe is more common operation in metalworking.
Tapping as the named depicts is the process that is used to seal the carton boxes having spindles doing the job.
Knurling is carried out to cut or rolled into the material to form a straight, diamond shape, angled or crossed lines or other definite pattern on a work piece for effective gripping surface outcome. Most commonly it is operated on lathes.
Extrusion is a basic manufacturing process where a material is melted to form into a definite profile like plastics into a pipe thus producing parts in wide range and lengths.
Forging refers to method of heating and pressing or hammering. Compressive force is applied to shape the metal like using blows to correctly shape the work piece. To know more about the shaping machines visit here :- http://www.machinedock.net/horizontal-shaper-machine
All these operations are mechanical working of the metal deformation that involves change of metal properties by increasing or decreasing in temperatures using various operations.
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