What’s CNC machining?
CNC machining is a process used in the manufacturing sector that involves the use of computers to control machine tools. Tools that can be controlled in this manner include lathes, mills, routers and grinders. The CNC in CNC Machining stands for Computer Numerical Control.
Main Types for CNC Machining
CNC Milling
Milling is the most common form of machining, a material removal process, which can create a variety of features on a part by cutting away the unwanted material. The milling process requires a milling machine, workpiece, fixture, and cutter. The workpiece is a piece of pre-shaped material that is secured to the fixture, which itself is attached to a platform inside the milling machine. The cutter is a cutting tool with sharp teeth that is also secured in the milling machine and rotates at high speeds. By feeding the workpiece into the rotating cutter, material is cut away from this workpiece in the form of small chips to create the desired shape.
CNC Turning
Turning is a form of machining, a material removal process, which is used to create rotational parts by cutting away unwanted material. The turning process requires a turning machine or lathe, workpiece, fixture, and cutting tool. The workpiece is a piece of pre-shaped material that is secured to the fixture, which itself is attached to the turning machine, and allowed to rotate at high speeds. The cutter is typically a single-point cutting tool that is also secured in the machine, although some operations make use of multi-point tools. The cutting tool feeds into the rotating workpiece and cuts away material in the form of small chips to create the desired shape.
Typical materials for CNC Machining
Aluminum Alloy
ABS is a polymer obtained by copolymerization of three monomers of acrylonitrile A, butadiene B and styrene S, referred to as ABS. The appearance of ABS is opaque ivory pellets, non-toxic, odorscss, low water absorption, density: 1.05 g / cm3. ABS materials have many properties such as low temperature resistance, impact resistance, low creep, excellent dimensional stability and ease of processing. ABS engineering plastics have a wide range of applications because of their high surface hardness and chemical resistance.
Common Finish For CNC Machining
Anodizing is an electrolytic passivation process used to increase the thickness of the natural oxide layer on the surface of metal parts. Anodizing increases resistance to corrosion and wear, and provides better adhesion for paint primers and glues than bare metal does.
No further surface treatment after the part is milled from a processing machine. If the products don’t need special surface protection or decoration, it can be fine and cost effective to choose none surface finishing requirement.
Spray Painting
Spray painting is a painting technique where a device sprays a coating (paint, ink, varnish, etc.) through the air onto a surface.
Sandblasting is the operation of forcibly propelling a stream of abrasive material against a surface under high pressure to smooth a rough surface, roughen a smooth surface, shape a surface or remove surface contaminants.
Need to know more about CNC Machining
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Save you cost :Cost-competitive CNC machining service with guaranteed quality

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More Options :Wide range of materials and post-processing choices

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