H62 Brass Ag plated Charging Pile Torsion Spring CNC Machined Components

H62 Brass Ag plated Charging Pile Torsion Spring CNC Machined Components

Precision machined parts are fabricated parts that require intricate features like holes, threads, tapers, or grooves and precise specifications that must fit perfectly with other components. These machined parts often require excellent precision for proper fit and function of the assembly. Hence, experts recommend using specialized equipment to meet highly tight tolerance and ensure fewer errors.

Moreover, precision machined parts is a common term manufacturers employ to sell products to potential customers and elevate customers’ perception of their capabilities. It would help to consider the meanings of accuracy and precision to understand better what precision machined parts truly are. The two terms differ even though both are related to quality and are mostly used interchangeably.

CNC Machining Materials:

ABS, Acrylic, Aluminium, Brass, Bronze, Cast Iron, Copper, Delrin, Garolite G-10, HDPE, Invar, Kovar, Magnesium, Nylon, PEEK, Polycarbonate, PP, PPS, PTFE, PVC, Stainless Steel, Steel, Titanium, Tool Steel, Torlon, UHMW, ULTEM, Zinc

Standard CNC Machine Tools Used For Precision Machined Parts

Manufacturers employ different machining equipment and tools to deliver quality precision machined components. While some precision machining processes involve a single CNC machine, others involve multiple machines. We’ll explore some of the machines used to create precision machined parts in this section:

CNC Milling Machines

CNC mills are versatile machines that reshape stationary workpieces with a multi-point rotary cutting tool. They can create various shapes, mainly face-milled and peripheral-milled features. Flat surfaces and shallow cavities are typical face-milled features, while deeper cavities, such as slots and threads, are standard peripheral-milled features. Precision CNC mills are ideal for machining rectangular – and square-shaped components with different features.

CNC Drilling Machines

Drilling machines make cylindrical holes in raw materials with rotating drill bits. These drill bits are multi-point CNC tools that remove chips from workpieces to ensure advanced hole machining. Typical drill bits used for machining precision parts include peck drills, spotting drills, chucking reamers, drill presses, and screw machine drills.

CNC Grinding Machines

Precision grinding machines are another common tool manufacturers use to create precision machined parts with smooth surface roughness requirements. These CNC grinders offer remarkable accuracy. While CNC mills and lathes first create workpieces with rough surfaces, precision grinders provide final surface finishing that meets the application requirements.

CNC Lathes and Turning Machine

CNC lathes can rotate a blank while the cutting tools remain stationed during machining. The cutters are in linear motions along the revolving bar stock, removing material around the circumferences to achieve the desired features and diameter. CNC Swiss lathes are typical CNC lathes that can rotate workpieces and feed them axially into the cutting tool through guide bushings. These machines allow the machining of precision parts with tighter tolerance since they offer better support for workpieces while the cutting tools shape the bar stock.

CNC turning machines add internal and external features like broaches, bores, tapings, slots, and reamed and drilled holes on precision parts. Bolts, poppets, screws, and shafts are standard precision machined components fabricated with CNC turning machines.

CNC Plasma Cutting Machines

These precision machines use high-powered, computer-controlled plasma torches to cut material into desired geometries. Plasma cutters deliver torches of over 50,000 °F. Hence, these tools make cuts in workpieces since they can melt quickly. However, plasma-cutting machines are mainly compatible with electrically conductive materials like brass, aluminum, copper, and stainless steel.

Electrical Discharge Machines

These machines cut materials into desired shapes with controlled electrical sparks. This approach is sometimes called spark eroding, wire burning, spark machining, or die sinking. The machinist places the workpiece under an electrode wire during the EDM process. Then, the programmed machine produces electrical discharges from the wire, generating extreme heat that melts the material and flushes it with an electrolytic fluid to achieve the intended shape and feature.

CNC Machining Tolerance