General Processes of Metalworking: Forming, Cutting, Joining

Metalworking - working with metals to create individual parts. Metalworking is used to create all types of products in a wide various application such as a small piece of jewelry to large scale constructions. Most of metalworking usually composed of cutting, joining and forming.

Metalworking: Forming

• Forging as one of the oldest metalworking processes involves forming and shaping of metals through hammering, pressing, or rolling. Forged metals are incredibly strong and are typically made of iron and metal.
• Roll Forming utilizes a roll forming line to progressively shape sheet metal through a series of bending operations. Typical roll form parts include panels, tracks, shelving, etc. and are commonly applied in industrial and commercial buildings for roofing, lighting and storage units.
• Rolling is a metal forming process that metal passing through a rolling mill to reduce the thickness. Rolling is done both hot and cold. Hot rolling is typically applied to larger work pieces while cold rolling applied to smaller objects.
  
  

Metalworking: Cutting

• Milling is the process of removing precise amounts of material from a greater piece. It involves a milling machine that rotates a cutting tool and then brought into contact with a work piece.
• Turning is a machine process in which a cutting tool moves linearly while the work piece rotates.
• Grinding utilize an abrasive wheel to remove material from a work piece while creating a smooth surface in the process, typically in the finish process of metalworking.
• Drilling uses a drill press, handheld drill, or CNC machine to cut a hole of circular cross-section in metal.

Metalworking: Joining

• Welding involves fusing parts together by using heat to melt a section of the metal where it will intersect with another component while adding a filler. Different types of welding e.g., arc, MIG, TIG which offer different welding ability to different material.
• Brazing is similar to welding, however, it melts filler metal without melting the sheet parts. The joint is created while molten filler metal solidifies to make the joint between similar or dissimilar metal parts.
• Riveting utilizes the small metal parts (rivet) embed through metal sheet by either drilled in, punched, or making a hole to join them. Afterwards, deform the rivet tails by smashing or pounding and hold the rivet in position.

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