Metal Fabrication and Manufacturing Processes

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What is the difference between manufacturing and fabrication?

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Manufacturing is the practice of putting raw materials through a process to create a finished product or part, whereas fabrication involves combining different parts to form a finished product.

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What does fabrication mean?

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Fabrication means constructing items from different parts using one or more processes and materials, including metals, wood, laminates, and solid surface materials.

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What are the main considerations when selecting a manufacturing process?

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1) Dimensional accuracy and surface finish, 2) Operational and manufacturing cost.

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What are the mechanical properties of materials?

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Strength, toughness, ductility, hardness, elasticity, fatigue, creep.

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What are the physical properties of materials?

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Density, specific heat, thermal expansion, conductivity, melting point, electrical and magnetic properties.

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What are the chemical properties of materials?

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Oxidation, corrosion, general degradation of properties, toxicity, and flammability.

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What is the importance of the strength to weight ratio in materials?

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It is particularly important in industries such as aerospace and automotive, as well as for sports equipment.

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What are the primary manufacturing processes?

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Processes used principally to alter the material’s shape or form, such as casting, injection molding, rolling, and sheet metalworking.

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What are secondary manufacturing processes?

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Processes used to add or remove geometric features from basic forms, such as machining operations like turning and grinding.

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What are tertiary manufacturing processes?

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Processes related to surface treatments such as polishing, painting, and heat treating.