The Top CNC Machined Technology In Industry
CNC machining technologies are currently most popular machining process, it is widely used for variety of industries like rapid machining, automotive, rapid tooling, and parts machining industry, and it also can suitable for many of metal and plastic raw material machined. Have you ever wondered which CNC machining technology is most suitable for your project? It is a known fact that CNC machining is the most reliable technique used in metal and plastic material production under high precision and tight tolerance. Even with the introduction of 3D printing; it does not come close enough to the scale production CNC machining offers due to its materials limited and the material itself of mechanical property as well as the machined parts tolerance control.
We try to highlight the different machining techniques used in the current industry for you to have a better understanding of how they work and to aid you in making an informed decision.
Below are main CNC machined technology processes
CNC Turning Machining
The process involves fixing a workpiece on a rotating plate while a cutting tool held against it. A moving slide holding the workpiece moves up or down and closer or away from the midline. It depends on the desired outcome from the workpiece. This technique is efficient in removing large chunks of material that quickly form the material compared to other techniques.
CNC turning is ideal for short-run volumes and especially prototypes and parts that are below 2.5”. Our engineer team need to check out if the turning centers over the 2.5” OD. Also, if the part is less than 1.25” OD, turning might not be the best option for producing that part. Our CNC lathes possess a working range of Ø400 mm with a precision of +/-0.01-0.02mm.
It is an added advantage if you must complete a project within a short time. The operations done include facing, threading, knurling, drilling, boring, reaming, and taper turning. The main application of this technique is in the making of round, cylindrical, or circular objects such as shafts and bar parts.
CNC Milling Machined
The technique closely resembles CNC turning with the difference being the workpiece held stationary, and the cutting tool rotates on a spindle. The position of the workpiece horizontally clamped in a machine vise, moving only in an X and Y-axis. The spindle holding a variety of cutting tools moves instead in an X, Y, and Z-axis.
It allows the milling process to prosper in removing stock material to form the workpieces having a sophisticated finishing with asymmetrical shapes. Other uses do include making holes and bores, but CNC turning is best suited for this task. A significant disadvantage of the technique is the amount of heat generated that might compromise the entire process. The solution to this is the use of cutting fluid to cool the workpiece and the cutting tool for a hitch-free process.
We specify a standard dimensional tolerance of ± 0.02-0.03mm for CNC machined parts. If you require a tighter tolerance, please contact us, as tighter tolerances may increase the cost of your project and clear definition upon ordering. Our CNC 3 axis machines offer a working range of 800-500-500 mm and precision of +/-0.02-0.03mm For the CNC 4 axis machine, they possess a working range of rotating diameter is 250mm with precision under +/-0.02mm. For the CNC 5 axis machine, the working range of rotating dimeter is 250mm with precision under +/-0.02mm too.
CNC Lathe Machining
The CNC lathe technology usually numerically controlled lathe to make sure the part precision and promote production efficiency, Its machining purposed and function is similar to our CNC turning, when we have used the center principal axis, fixed the parts, then using high rotating cutting tools to remove the parts materials to achieve final product feature, This process is suitable to your shafts, tube parts.
CNC Surface grinding
If you wish to have your project with smooth and shiny finishing, CNC surface grinding is the best choice for you. Its typical use is on obtaining a flat surface finishing. The method is most suitable for metal components having a flat surface without any protrusions. The process involves a grinder coated with an abrasive material spun on a fixed workpiece moved horizontally beneath the abrasive wheel. It removes tiny quantities of material from a workpiece surface.
To achieve varied desired outcomes, we use different abrasive material coarseness for this. A disadvantage of this technique is the heat generated during the process. Thus, controlling the speed of the grinder significantly reduces this demerit and improves the overall outcome of the finished part.
We offer this process to all high precision area or flat surface. We control high grinding tolerance under 0.001-0.002mm. Which include precision grinding machines with a working range 160mmx400mm and precision of 2um. A jig grinder with a working range of 610mm×280mm and precision of 2um for projects needing high degrees of accuracy.
Solid sinker EDM
It is different from the techniques mentioned earlier in its use of spark erosion to derive desired cut-outs. The process involves the use of a conductive electrode pre-shaped and placed close to the workpiece. A dielectric fluid immerses both the workpiece and the electrode. The power setting alternates to achieve either a smooth finish or a rough finish. To achieve a smoother finish, we use a lower spark energy setting and vice versa. Sparks leave the electrode and erode the workpiece in the pre-shaped design.
Its main application is in hardened steel in making cut-outs, pockets, holes, logos, and lettering. The disadvantages of the process are its long turnaround time, and fumes produce during the process. A filtration unit aids in clearing the fumes produced and making the process less hazardous.
Creatingway facilities possess an ability to work with pieces up to 16 inches thick, and taper angles to 30˚+. We manage parts up to 25.6″ x 16″ x 17.75″ workpieces. It ensures any project you have is EDMed by us without inconveniences.
The process resembles solid sink EDM with the difference being it requires an open-end, i.e., a pass-through for the process to work. The wire used is either brass or copper wire immersed in a dielectric fluid acting as a resistor, along with the workpiece.
Our currently wire cutting maintains tolerances up to ±.0004”. Our wire EDM cutting produces exact shapes and corners down to .001” with a minimum wire diameter of .003”.
The process combines CNC turning and surface grinding in one process for objects with a central axis of rotation. Some of the objects include cylinders, ellipses, or a crankshaft. Generally used for generating external cylindrical surface and the machine used is similar to the center lathe machine. The spindle holds the workpiece held between the center. Both the wheel and workpiece are in contact, and both rotate counter-clockwise. This movement allows for smoother operation and no jam up to develop. The abrasive material removes the material from the workpiece.
The method applies mostly for cylindrical workpieces for both inside and outside diameters depending on your project’s specification. We again use a lubricant fluid to cool the workpiece surfaces and cylindrical grinding surface for a much more efficient finish.
CNC laser Cutting
It is a process that uses the energy of a laser beam to illuminate and melt surfaces of either steel or aluminum plates. The concentration of the energy is high, resulting in little deformations occurring during the production process. In comparison to other traditional CNC cutting machining process, it has high precision, tiny join cutting, small deformation, faster spread, with easy graphic update and low cost of production. Using laser cutting, we are very precise, cutting complex billets that require no further processing.
Our laser cutting machines offering a better option for your projects with a working range of 3000W – 6000W (0.2-16mmT) and precision of +/-0.02mm. It is thus an essential part of modern industrial production.
Creatingway is concentrated on CNC machining manufacturing, prototype machining, low-volume manufacturing, metal fabrication and parts finishing services, provide you the best support and services. ask us one inquire now.
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