Traditional machining has evolved over the years, giving way to an era of more complex machining systems that are cost-effective and highly efficient. Computer numerical control (CNC) machining is a subtractive process of manufacturing that utilizes an automated power that is computer-integrated to control tools such as lathes, boring, and drilling machines. It is used to produce parts of high quality with high dimensional accuracy in a cost-effective manner. There has been tremendous growth in the use of CNC machining, thereby revolutionizing the manufacturing industry. As such, this technology has reduced the human resources required in the production of sophisticated parts as the machines can work on a large number of work-pieces for mass production. This way, the consumer’s demands are easily met over a short period of time while at the same time producing high-quality products.
CNC machining process
A design is first drafted using computer-aided design (CAD) and loaded into the CNC machine that interprets the design into special codes. The material, which is often a block work-piece, is then placed in the CNC and clamped in position. The work-piece is then machined automatically following the design fed into the CNC computer.
Design consideration for CNC machining
The design for CNC machining parts is quite flexible but often limited by the capability of a particular CNC machine and its tooling. Designers are therefore required to adhere to specific requirements for the successful production of high-quality parts. Parts tolerance is an essential consideration in design for parts to be machined in CNC as such tight tolerances may lead to unwanted costs due to an increase in scrap, the requirement of specialized tools, and fixtures. Therefore standard tolerances should be applied based on the type of material to be machined. Tight tolerances should only be used in critical design requirements.
The size of the material blank is another factor of interest during design. It is recommended that the size of the blank be 0.125 inches larger than the actual dimensions of the part to be machined. This will ensure that the part dimensions are retained even after machining.
The type of material is considered a vital driver that determines the overall cost of the component. The material type has a significant impact on the overall price of the part based on the geometry and the size of the component. Designers should consider cheaper material of the design that doesn’t warrant the material properties of a material that is more expensive. The wall thickness of the part to be manufactured plays a crucial role in determining the overall strength of the region to be machined. Designers should avoid too thin walls or too thick walls in their designs as they limit the part’s structural integrity. Undercuts should also be considered in the design. Undercuts results when some features of the part to be machined are unbelievable. Undercuts with non-standard dimensions may require additional special tools to create a custom feature, which results in the additional cost of producing a part.
Conclusion
To sum up, CNC machining offers numerous benefits in manufacturing, such as high dimensional accuracy of the part to be produced. However, designers should be careful when designing parts to be machined in a CNC machine to produce high-quality parts.
Rapid CNC prototype machining
partZpro provides CNC aluminum prototypes, steel and plastic parts with quick turnarounds.
While we give quote estimation in seconds, we manufacture quick turn prototype machined parts for our customers around the world.
Our manufacturers offer CNC turning centers, lathes, milling machines that are operated by experienced turning and milling specialists.
Our modern CNC machines can handle small radius cuts and maintain high-quality results whether you want one piece or thousands,
We offer a variety of CNC machining services including CNC milling, CNC routing, and CNC turning. Also as complimentary services we provide surface finishing
such as anodizing, bead blasting, grinding, heat treating and more.
Rapid CNC machining for prototype parts
partZpro is an industry leader in rapid CNC machining; Our customers can get machined cnc prototyping with high quality.
If you are looking for cnc rapid prototyping services in China or globally for aluminum, steel , or plastic machined parts, partZpro can be your best partner for custom cnc machining services.
Our prototype machining services offer outstanding quality for aluminum, copper, brass, stainless steel parts. Also we can CNC machine polymers such as
ABS, POM, and other plastics.
We provide an online instant quote system and our instant quote estimations are available within seconds, parts ship out as fast as 3 days.
We can scale all your products projects from prototyping to production quantities effortlessly.
Fast CNC prototype capabilities
With a range of machines, we offer CNC machining for 5 and 3 axis capability, see CNC prototype capabilities below:
Quoting: Within 24 hours
Lead Time: As fast as 3 days
Materials: 50+ Metals and plastics
Standard Tolerances: +/- 0.1 mm (0.001 mm on request) for metals and +/-0.2 mm for plastics
CNC machining for production parts
If your parts are low-volume production quantities and you need fast lead times, for example Volume: 50-2,000+ parts, then you are in the right place.
Contact us to get your cnc rapid prototyping projects started today.
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