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A precision machine produces items with a high level of accuracy and consistency. Several factors must be properly optimized, including the speed and feed rate of the cutting tool, spindle power, and lubricants used to ensure optimal performance to achieve that. Beyond these technical specifications, there are other benefits to using a precision machine for manufacturing. Compared to those areas where re-tooling costs are especially high, precision machining services near me can offer clear advantages over other forms of production methods, and it involves using different materials. The following is a list of common precision machining materials:

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Plastics

Plastics account for approximately 1 percent of all raw materials used worldwide. The exact amount is hard to determine because some types can be recycled while others cannot. Plastics come from natural sources (such as wood, plants, and petroleum) or synthetic sources (such as oil refining). The most common plastics used for manufacturing purposes are the hard, unplasticized variety known as thermosetting resins.

Examples include Bakelite, Celcon, Delrin, nylon, polypropylene, polyethylene terephthalate (Dacron), Teflon fluorocarbon resin, Lexan polycarbonate resin, and polyvinyl chloride (PVC). Other plastics are often foamed to reduce weight or improve thermal insulation. Examples of foam plastics include beadboard, Styrofoam pellets, urethane, cellular rubber, and phenolic resins.

Plastics are used in precision machining because they are easy to machine, resistant to abrasion, not conductive, and can transmit heat without conducting it away from the surface being worked on. Plastics are available in a wide range of hardness so that surfaces can be machined to any desired degree of smoothness or tooth. Further, plastics can be specially colored or finished for aesthetic reasons. Steel is useful in precision machining because it machines precisely due to its hardness, affordability, and alloying can alter its properties.

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Steel

Research indicates that steel accounts for approximately 95 percent of all raw materials used in modern industrialized countries. The world produces more than 1 billion metric tons annually. This production rate makes it difficult to determine exactly how much steel has been produced at any time during the past century because revisions constantly occur as new data becomes available. Although more than 768 million tons of steel are produced worldwide each year, recycling efforts have reduced the need for new production. The most common form of steel is carbon steel, which may be alloyed with chromium, manganese, nickel, or other elements to improve its properties.

Brass

A commonly used material with good machinability, strength, and corrosion resistance, can be annealed or work hardened. It is not as strong as steel but has better wear characteristics (less friction). Brass can be cut dry or wet (with lubricant) to offer a smooth finish and polish well once finished. Brass has excellent dimensional stability and high electrical conductivity, making it ideal for applications that require accurate parts and precise electrical connections, such as precision sensors and switches. 

Aluminum

Aluminum is a low density, non-corrosive metal alloy with good strength to weight ratio. Aluminum is easily machined and formed in annealed condition; it has excellent corrosion resistance, is lightweight but stiff. It can be finished by some abrasion methods (abrasive blasting/shot peening, bead blasting). That will produce a satin finish which may need further finishing before painting or assembly. A variety of aluminum alloys are commonly used for precision parts. Each alloy type provides different hardness, ductility, and mechanical properties that make them suitable for particular precision fabrication applications, such as abrasion resistance (aluminum bronze) versus stiffness. 

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